+publisher:"Brown University" +contributor:("Dell\'Antonio, Ian")

1. Michney, Ryan J. Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields.

Degree: PhD, Physics, 2014, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:419354/

► In recent years, weak gravitational lensing has become an indispensable method for understanding the concentration of matter on the largest scales. Galaxy clusters, the largest… (more)

▼ In recent years, weak gravitational lensing has become an indispensable method for understanding the concentration of matter on the largest scales. Galaxy clusters, the largest virialized structures in the universe, provide a crucial environment in which to examine cosmological evolution. Because most matter is non-luminous, weak lensing provides an opportunity for direct measurement of large scale mass clustering, independent of considerations involving cluster dynamics. This study takes advantage of the large amount of deep and high quality optical imaging freely available from the Subaru Telescope data archive to perform a semi-blind cluster search across an extraordinarily large field of view, 10.34 deg2 of the sky, at high source density (utilizing 1.27 × 106 galaxies). Our precise 2D mass reconstruction, spanning five low-extinction Milky Way windows, detects 90 unique cluster candidates above S/N≥3. Of these, 67 possess S/N≥4, and 18 possess S/N≥5. From the fields analyzed, 43 independently confirm prior detections, 6 of these match (but with offsets in the location of the cluster barycenter), and the remaining 47 represent potential new cluster discoveries. Previous cluster candidates in these regions were uncovered through non-WL techniques, therefore, our analysis represents a significant contrast against other wide-field cluster search methods, and is one of the largest lensing surveys completed to date. Convergence reconstructions also detect SZ & X-ray cluster candidate PLCKG100.2-30.4 in multiple independent waveband data, but fails to measure the more observationally difficult PLCKG18.7+23.6. We estimate the mass of the former, as well as that of clusters Abell 383, Abell 1672, and RXCJ1651.1+0459. The scale of this project necessitated the invention of numerous automated data reduction algorithms and a comprehensive pipeline optimizing the shape information and object detections of deep-field galaxies in available imaging. Most notably, a novel flux-independent identification system for stars was created in order to find ideal stellar objects necessary for accurate PSF circularization. Our techniques allow us to stack and circularize Subaru images to better than <0.5% mean ellipticity without introducing spurious effects. Advisors/Committee Members: Dell'Antonio, Ian (Director), Dell'Antonio, Ian (Reader), Gaitskell, Richard (Reader), Tucker, Gregory (Reader).

Subjects/Keywords: Observational Astronomy

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Michney, R. J. (2014). Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:419354/

Chicago Manual of Style (16^th Edition):

Michney, Ryan J. “Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields.” 2014. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:419354/.

MLA Handbook (7^th Edition):

Michney, Ryan J. “Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields.” 2014. Web. 22 Jan 2021.

Vancouver:

Michney RJ. Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields. [Internet] [Doctoral dissertation]. Brown University; 2014. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:419354/.

Council of Science Editors:

Michney RJ. Quality-Selected Lensing Analysis of Galaxy Clusters in Subaru Telescope Fields. [Doctoral Dissertation]. Brown University; 2014. Available from: https://repository.library.brown.edu/studio/item/bdr:419354/

2. Cook, Richard Ian. Measuring Weak Lensing Sensitivity and Systematics.

Degree: PhD, Physics, 2012, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:297715/

► The Universe is expanding at an ever increasing rate. The mysterious source of this acceleration has been dubbed "dark energy" and constitutes 70% of the… (more)

▼ The Universe is expanding at an ever increasing rate. The mysterious source of this acceleration has been dubbed "dark energy" and constitutes 70% of the energy-density of the Universe. To understand the nature of this force we must measure the expansion of the universe and the growth of structure with significant precision. Clusters of galaxies are the most massive gravitationally-collapsed structures in the universe and offer an ideal probe of the growth and evolution of structure. Numerous methods for detecting and measuring cluster masses exist including X-ray flux, spectroscopic redshift, and weak gravitational lensing measurements. Weak lensing is the coherent distortion of galaxy images by intervening mass and is used as an unbiased indicator of the mass of galaxy clusters. The accuracy of each of these methods for measuring clusters masses will depend in part on the accuracy of weak lensing measurements, which will be used both as a mass calibration technique and a detection technique. It is therefore critical that we understand the factors affecting weak lensing sensitivity and the correspondence to other mass measurement techniques. Orthogonal Transfer (OT) Imagers offer significant advantages for weak lensing measurements. By correcting atmospheric distortions using real-time guide-star position information and shifting charge across the CCD they can increase the number of detected galaxies and increase the signal-to-noise of weak lensing detections. One outstanding question has been whether the charge-shifting correction induces unwanted systematic effects in weak lensing measurements. I study the systematic effects from OT guiding using stellar observations and show that the magnitude of the improvement to image quality far exceed the magnitude of any possible systematic effects. I demonstrate the utility of OT imagers for weak lensing by detecting the cluster Abell 781A using the Orthogonal Parallel Transfer Imaging Camera. I use this data to measure the sensitivity of weak lensing detections and the significant discrepancy between mass estimates of Abell 781D. Finally, I show that OT imagers can also be used to probe atmospheric conditions during observations, informing our choice of observing strategy and further illustrating the facility of OT guiding. Advisors/Committee Members: Dell'Antonio, Ian (Director), Gaitskell, Richard (Reader), Koushiappas, Savvas (Reader), Dell'Antonio, Ian (Reader).

Subjects/Keywords: Weak Lensing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cook, R. I. (2012). Measuring Weak Lensing Sensitivity and Systematics. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297715/

Chicago Manual of Style (16^th Edition):

Cook, Richard Ian. “Measuring Weak Lensing Sensitivity and Systematics.” 2012. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:297715/.

MLA Handbook (7^th Edition):

Cook, Richard Ian. “Measuring Weak Lensing Sensitivity and Systematics.” 2012. Web. 22 Jan 2021.

Vancouver:

Cook RI. Measuring Weak Lensing Sensitivity and Systematics. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:297715/.

Council of Science Editors:

Cook RI. Measuring Weak Lensing Sensitivity and Systematics. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297715/

3. Nagler, Peter Campbell. Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE.

Degree: Department of Physics, 2017, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:733451/

► The Primordial Inflation Explorer (PIXIE) is a proposed NASA-led mission designed to measure the polarization and intensity of the cosmic microwave background (CMB). PIXIE will… (more)

▼ The Primordial Inflation Explorer (PIXIE) is a proposed NASA-led mission designed to measure the polarization and intensity of the cosmic microwave background (CMB). PIXIE will answer key questions about the origin and evolution of the universe, from the period of inflation immediately after the Big Bang to the present day. While most other instruments designed for CMB measurements are imagers, PIXIE is a Fourier transform spectrometer (FTS). Its highly-symmetric design enables excellent control of systematic effects and its sensitivity and bandwidth allow us to distinguish cosmological signals from signals originating within our own Galaxy. This thesis introduces the PIXIE experiment and details two specific areas of PIXIE development supported by my dissertation work: modeling and mitigation of instrumental systematic effects and the development of PIXIE’s multimode bolometers. PIXIE’s raw instrumental systematic error terms are small, generally from hundreds of nK to a few μK. But these terms will still overwhelm our target cosmological signals; for example the predicted B-mode polarization signal of the CMB, whose detection would provide strong evidence for inflation, is expected to be < 100 nK. In this work, I analytically solve for the most important systematic error signals caused by non-idealities within the PIXIE FTS. I then show how they are mitigated to acceptable levels with simple corrective actions. PIXIE achieves background-limited sensitivity with just 4 detectors. They require a vastly different optimization from bolometers developed for focal-plane imagers. They must handle a large, near-constant optical bias (~ 120 pW) but still operate with sensitivity near the thermodynamic limit. They must have a large and mechanically robust absorbing area (30 times larger than the spider web bolometers that flew on Planck) that is sensitive to all optical frequencies of interest but is relatively insensitive to cosmic ray hits. I detail our efforts to overcome these challenges and discuss the cryogenic and environmental performance of PIXIE’s prototype bolometers. Advisors/Committee Members: Tucker, Gregory (Advisor), Dell'Antonio, Ian (Reader), Fixsen, Dale (Reader).

Subjects/Keywords: Physics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nagler, P. C. (2017). Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:733451/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nagler, Peter Campbell. “Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE.” 2017. Thesis, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:733451/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nagler, Peter Campbell. “Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE.” 2017. Web. 22 Jan 2021.

Vancouver:

Nagler PC. Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE. [Internet] [Thesis]. Brown University; 2017. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:733451/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nagler PC. Observing the Universe with a Polarizing Fourier Transform Spectrometer called PIXIE. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:733451/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Faham, Carlos H. Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment.

Degree: PhD, Physics, 2014, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:386139/

► The existence of non-baryonic cold dark matter is well established through a wealth of complementary observations such as the Cosmic Microwave Background, Supernova Type Ia… (more)

▼ The existence of non-baryonic cold dark matter is well established through a wealth of complementary observations such as the Cosmic Microwave Background, Supernova Type Ia and Big Bang Nucleosynthesis. Despite the overwhelming cosmological evidence, the particle nature of dark matter remains unknown. The leading candidate is a Weakly Interacting Massive Particle (WIMP), a thermal relic from the Big Bang that only interacts through the gravitational and weak forces. A terrestrial detector with high target mass, low background levels and a low energy threshold (keV) should be able to record the rare, faint interactions between ordinary matter and galactic WIMP dark matter. The Large Underground Xenon (LUX) experiment is a 370 kg liquid xenon time projection chamber that aims to detect WIMP recoils with xenon nuclei. The experiment is located a mile underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota. LUX is poised to become the world's most sensitive dark matter detector after only 2 weeks of exposure and will surpass current detection limits by an order of magnitude after 300 days. The LUX experimental program consists of three phases: (1) the LUX0.1 prototype detector during 2007– 2009, (2) the commissioning and operation of the LUX detector at the Sanford surface laboratory during 2009–2012 and (3) the underground deployment and operation of the detector beginning in 2012. This thesis describes the first two phases of the LUX program. LUX utilizes 122 Hamamatsu R8778 photomultiplier tubes (PMTs) to detect photons produced by particle interactions in liquid xenon. The LUX PMT mounting, high voltage distribution, analog signal shaping and gain calibration system are described in detail. The PMTs are shown to have low radioactive background levels, single-photon sensitivity and a 30% photon detection efficiency at the 175 nm liquid xenon scintillation wavelength. Handling protocols and vacuum integrity control based on ion-initiated afterpulses are presented. Xenon purification and energy calibration results are described for LUX0.1. During the LUX surface run, light collection and statistical position resolution measurements were obtained. Additionally, the xenon circulation path was imaged with alpha particles from a Rn222 injection. Advisors/Committee Members: Gaitskell, Richard (Director), Dell'Antonio, Ian (Reader), Landsberg, Greg (Reader).

Subjects/Keywords: LUX

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Faham, C. H. (2014). Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:386139/

Chicago Manual of Style (16^th Edition):

Faham, Carlos H. “Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment.” 2014. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:386139/.

MLA Handbook (7^th Edition):

Faham, Carlos H. “Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment.” 2014. Web. 22 Jan 2021.

Vancouver:

Faham CH. Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment. [Internet] [Doctoral dissertation]. Brown University; 2014. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:386139/.

Council of Science Editors:

Faham CH. Prototype, Surface Commissioning and Photomultiplier Tube Characterization for the Large Underground Xenon (LUX) Direct Dark Matter Search Experiment. [Doctoral Dissertation]. Brown University; 2014. Available from: https://repository.library.brown.edu/studio/item/bdr:386139/

5. Blackadder, Ian Gordon. Dark Matter Decaying in the Expanding Universe.

Degree: PhD, Physics, 2016, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:674367/

► The last few years have seen significant interest in decaying dark matter. Specific models have been conjectured to account for observations that are not predicted… (more)

Subjects/Keywords: Dark Matter

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Blackadder, I. G. (2016). Dark Matter Decaying in the Expanding Universe. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:674367/

Chicago Manual of Style (16^th Edition):

Blackadder, Ian Gordon. “Dark Matter Decaying in the Expanding Universe.” 2016. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:674367/.

MLA Handbook (7^th Edition):

Blackadder, Ian Gordon. “Dark Matter Decaying in the Expanding Universe.” 2016. Web. 22 Jan 2021.

Vancouver:

Blackadder IG. Dark Matter Decaying in the Expanding Universe. [Internet] [Doctoral dissertation]. Brown University; 2016. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:674367/.

Council of Science Editors:

Blackadder IG. Dark Matter Decaying in the Expanding Universe. [Doctoral Dissertation]. Brown University; 2016. Available from: https://repository.library.brown.edu/studio/item/bdr:674367/

6. Verbus, James R. An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector.

Degree: PhD, Physics, 2016, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:674209/

► We propose a new technique for the calibration of nuclear recoils in large noble element dual-phase time projection chambers (TPCs) used to search for WIMP… (more)

▼ We propose a new technique for the calibration of nuclear recoils in large noble element dual-phase time projection chambers (TPCs) used to search for WIMP dark matter in the local galactic halo. This technique provides a measurement of the low-energy nuclear recoil response of the target media using the measured scattering angle between multiple neutron interactions within the detector volume. Several strategies for improving this calibration technique are discussed, including the creation of a new type of quasi-monoenergetic 272 keV neutron source. We report results from a time-of-flight-based measurement of the neutron energy spectrum produced by an Adelphi Technology, Inc. DD108 neutron generator, confirming its suitability for the proposed calibration. The Large Underground Xenon (LUX) experiment is a dual-phase liquid xenon TPC operating at the Sanford Underground Research Facility in Lead, South Dakota. Our proposed calibration technique for nuclear recoils in liquid xenon was performed in situ in the LUX detector using a collimated beam of mono-energetic 2.45 MeV neutrons produced by the DD108 fusion source. The nuclear recoil energy from the first neutron scatter in the TPC was reconstructed using the measured scattering angle defined by two-site neutron events within the active xenon volume. We measured the absolute charge (Qy) and light (Ly) yields at an average electric field of 180 V/cm for nuclear recoil energies spanning 0.7 to 74 keV and 1.1 to 74 keV, respectively. This calibration of the nuclear recoil signal yields will permit the further refinement of liquid xenon nuclear recoil signal models and clearly demonstrates measurable ionization and scintillation signals in this medium at recoil energies down to O(1 keV). The low-energy reach and reduced systematics of this calibration have particular significance for the low-mass WIMP sensitivity of several leading dark matter experiments. Advisors/Committee Members: Gaitskell, Richard (Director), Dell'Antonio, Ian (Reader), Narain, Meenakshi (Reader).

Subjects/Keywords: LUX

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Verbus, J. R. (2016). An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:674209/

Chicago Manual of Style (16^th Edition):

Verbus, James R. “An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector.” 2016. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:674209/.

MLA Handbook (7^th Edition):

Verbus, James R. “An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector.” 2016. Web. 22 Jan 2021.

Vancouver:

Verbus JR. An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector. [Internet] [Doctoral dissertation]. Brown University; 2016. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:674209/.

Council of Science Editors:

Verbus JR. An Absolute Calibration of Sub-1 keV Nuclear Recoils in Liquid Xenon Using D-D Neutron Scattering Kinematics in the LUX Detector. [Doctoral Dissertation]. Brown University; 2016. Available from: https://repository.library.brown.edu/studio/item/bdr:674209/

7. Vinokurov, Yury. EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background.

Degree: PhD, Physics, 2010, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:11124/

► The "E and B mode EXperiment," (EBEX) is a balloon-borne telescope which aims to measure the polarization of the cosmic microwave background radiation in three… (more)

Subjects/Keywords: polarization

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Vinokurov, Y. (2010). EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11124/

Chicago Manual of Style (16^th Edition):

Vinokurov, Yury. “EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background.” 2010. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:11124/.

MLA Handbook (7^th Edition):

Vinokurov, Yury. “EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background.” 2010. Web. 22 Jan 2021.

Vancouver:

Vinokurov Y. EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background. [Internet] [Doctoral dissertation]. Brown University; 2010. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:11124/.

Council of Science Editors:

Vinokurov Y. EBEX, a balloon-borne telescope for observing the polarization of the cosmic microwave background. [Doctoral Dissertation]. Brown University; 2010. Available from: https://repository.library.brown.edu/studio/item/bdr:11124/

8. Geringer-Sameth, Alex. Comprehensive Approaches and Results in the Indirect Dark Matter Search.

Degree: PhD, Physics, 2013, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:320646/

► Dark matter is an essential ingredient in our modern understanding of the Universe. However, its fundamental role in cosmology is matched only by its conspicuous… (more)

Subjects/Keywords: dark matter

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Geringer-Sameth, A. (2013). Comprehensive Approaches and Results in the Indirect Dark Matter Search. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:320646/

Chicago Manual of Style (16^th Edition):

Geringer-Sameth, Alex. “Comprehensive Approaches and Results in the Indirect Dark Matter Search.” 2013. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:320646/.

MLA Handbook (7^th Edition):

Geringer-Sameth, Alex. “Comprehensive Approaches and Results in the Indirect Dark Matter Search.” 2013. Web. 22 Jan 2021.

Vancouver:

Geringer-Sameth A. Comprehensive Approaches and Results in the Indirect Dark Matter Search. [Internet] [Doctoral dissertation]. Brown University; 2013. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:320646/.

Council of Science Editors:

Geringer-Sameth A. Comprehensive Approaches and Results in the Indirect Dark Matter Search. [Doctoral Dissertation]. Brown University; 2013. Available from: https://repository.library.brown.edu/studio/item/bdr:320646/

9. Helson, Kyle Robert. The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky.

Degree: PhD, Physics, 2016, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:674293/

► Measurements of the Cosmic Microwave Background (CMB) made over the last 25 years have ushered in the era of precision cosmology. The E and B… (more)

Subjects/Keywords: polarization

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Helson, K. R. (2016). The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:674293/

Chicago Manual of Style (16^th Edition):

Helson, Kyle Robert. “The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky.” 2016. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:674293/.

MLA Handbook (7^th Edition):

Helson, Kyle Robert. “The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky.” 2016. Web. 22 Jan 2021.

Vancouver:

Helson KR. The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky. [Internet] [Doctoral dissertation]. Brown University; 2016. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:674293/.

Council of Science Editors:

Helson KR. The Development and Deployment of Instrumentation to Measure the Polarized Microwave Sky. [Doctoral Dissertation]. Brown University; 2016. Available from: https://repository.library.brown.edu/studio/item/bdr:674293/

10. Huwe, Paul M. Dark Matter Substructure in High Redshift Clusters of Galaxies.

Degree: PhD, Physics, 2013, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:320536/

► For my graduate research, I have focused on the creation of high resolution weak lensing mass maps in order to study dark matter substructure in… (more)

Subjects/Keywords: dark matter

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Huwe, P. M. (2013). Dark Matter Substructure in High Redshift Clusters of Galaxies. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:320536/

Chicago Manual of Style (16^th Edition):

Huwe, Paul M. “Dark Matter Substructure in High Redshift Clusters of Galaxies.” 2013. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:320536/.

MLA Handbook (7^th Edition):

Huwe, Paul M. “Dark Matter Substructure in High Redshift Clusters of Galaxies.” 2013. Web. 22 Jan 2021.

Vancouver:

Huwe PM. Dark Matter Substructure in High Redshift Clusters of Galaxies. [Internet] [Doctoral dissertation]. Brown University; 2013. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:320536/.

Council of Science Editors:

Huwe PM. Dark Matter Substructure in High Redshift Clusters of Galaxies. [Doctoral Dissertation]. Brown University; 2013. Available from: https://repository.library.brown.edu/studio/item/bdr:320536/

11. McCleary, Jacqueline Elizabeth. Dark Matter Substructure in Very Low Redshift Galaxy Clusters.

Degree: Department of Physics, 2017, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:792597/

► This work sets forth the methods and first results of our study of ∼ 1E14 M⊙ mass substructures in very low redshift (z < 0.12)… (more)

Subjects/Keywords: Physics; Astrophysics; Galaxy Clusters; Cosmology

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

McCleary, J. E. (2017). Dark Matter Substructure in Very Low Redshift Galaxy Clusters. (Thesis). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:792597/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

McCleary, Jacqueline Elizabeth. “Dark Matter Substructure in Very Low Redshift Galaxy Clusters.” 2017. Thesis, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:792597/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

McCleary, Jacqueline Elizabeth. “Dark Matter Substructure in Very Low Redshift Galaxy Clusters.” 2017. Web. 22 Jan 2021.

Vancouver:

McCleary JE. Dark Matter Substructure in Very Low Redshift Galaxy Clusters. [Internet] [Thesis]. Brown University; 2017. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:792597/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

McCleary JE. Dark Matter Substructure in Very Low Redshift Galaxy Clusters. [Thesis]. Brown University; 2017. Available from: https://repository.library.brown.edu/studio/item/bdr:792597/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. de Viveiros Souza Filho, Luiz Angelo. Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments.

Degree: PhD, Physics, 2009, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:241/

► A wealth of evidence indicates that ~23% of the universe is composed of dark matter. For the past two decades, several experiments have attempted to… (more)

▼ A wealth of evidence indicates that ~23% of the universe is composed of dark matter. For the past two decades, several experiments have attempted to detect dark matter directly or indirectly. Nevertheless, its nature remains one of the most elusive problems in fundamental physics today. XENON10 is a direct detection experiment, using a liquid Xe Time Projection Chamber (TPC) to search for dark matter in the form of Weakly Interacting Massive Particles (WIMPs). Particle interactions in the 15 kg liquid Xe target generate scintillation (S1) and ionization (S2) signals. WIMP (and neutron) interactions produce nuclear recoils. The dominant backgrounds (gamma rays and beta particles) produce electron recoils. The S2/S1 ratio is larger for electron recoils than for nuclear recoils, allowing for the rejection of electron recoil backgrounds with ~99.6% efficiency. XENON10 operated underground at the Laboratori Nazionali Gran Sasso in Italy during 2006-2007. Analysis of its WIMP Search run of 58.6 live-days and 5.4 kg fiducial mass resulted at the time in the most sensitive limits on the Spin-Independent WIMP-nucleon cross-section, setting an upper limit of 8.8x10^-44 cm² for a WIMP mass of 100 GeV/c² (90% C.L.). The large scale experiment LUX (300 kg) is designed to improve the sensitivity to WIMP interactions by two orders of magnitude, and will be deployed in the Sanford Laboratory at the Homestake Mine in 2009-2010. Next-generation Xe TPC detectors with masses in the order of 1-10 tonnes are already in the design stage, with planned deployment in the next ten years. In dark matter search experiments, backgrounds are the biggest factor limiting sensitivity. This work presents a discussion of the use of liquid Xe detectors in dark matter experiments; details the construction of background models through the use of Monte Carlo simulations; identifies and characterizes the major sources of background; explores how shielding and detector design affect the background event rate; and explains the techniques used to reduce the effect of backgrounds on the detector sensitivity. Advisors/Committee Members: Gaitskell, Richard (director), Dell'Antonio, Ian (reader), Landsberg, Greg (reader).

Subjects/Keywords: Dark Matter

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

de Viveiros Souza Filho, L. A. (2009). Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:241/

Chicago Manual of Style (16^th Edition):

de Viveiros Souza Filho, Luiz Angelo. “Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments.” 2009. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:241/.

MLA Handbook (7^th Edition):

de Viveiros Souza Filho, Luiz Angelo. “Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments.” 2009. Web. 22 Jan 2021.

Vancouver:

de Viveiros Souza Filho LA. Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments. [Internet] [Doctoral dissertation]. Brown University; 2009. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:241/.

Council of Science Editors:

de Viveiros Souza Filho LA. Optimization of Signal versus Background in Liquid Xe Detectors Used for Dark Matter Direct Detection Experiments. [Doctoral Dissertation]. Brown University; 2009. Available from: https://repository.library.brown.edu/studio/item/bdr:241/

13. Pehlevan, Cengiz. Non-perturbative Methods in Quantum Field Theory.

Degree: PhD, Physics, 2011, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:11174/

► In this thesis we first study various aspects of stationary distributions of certain deterministic and stochastic dynamical systems. We look at the 30 year old… (more)

Subjects/Keywords: Complex Langevin Equation

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pehlevan, C. (2011). Non-perturbative Methods in Quantum Field Theory. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11174/

Chicago Manual of Style (16^th Edition):

Pehlevan, Cengiz. “Non-perturbative Methods in Quantum Field Theory.” 2011. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:11174/.

MLA Handbook (7^th Edition):

Pehlevan, Cengiz. “Non-perturbative Methods in Quantum Field Theory.” 2011. Web. 22 Jan 2021.

Vancouver:

Pehlevan C. Non-perturbative Methods in Quantum Field Theory. [Internet] [Doctoral dissertation]. Brown University; 2011. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:11174/.

Council of Science Editors:

Pehlevan C. Non-perturbative Methods in Quantum Field Theory. [Doctoral Dissertation]. Brown University; 2011. Available from: https://repository.library.brown.edu/studio/item/bdr:11174/

14. Zhang, Wenzhe. Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions.

Degree: PhD, Physics, 2012, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:297711/

► We systematically studied the spin-dependent transport and electrical noise characteristics of MgO-based magnetic tunnel junctions (MTJs). Utilizing the coherent tunneling effect in the MgO tunnel… (more)

▼ We systematically studied the spin-dependent transport and electrical noise characteristics of MgO-based magnetic tunnel junctions (MTJs). Utilizing the coherent tunneling effect in the MgO tunnel barrier, we have successfully fabricated MTJ devices with large tunneling magnetoresistance (TMR) ratios. To explore the magnetization properties of these devices at a fundamental level, we first investigated the magnetization dynamics of sputtered CoFeB thin films used as the free layers in MgO-based MTJ stacks by a broad-band FMR spectrometer. Then we presented a new method for estimating the magnetic anisotropy dispersion in MTJ arrays in serial configurations, using the simulated field sensitivity maps. Based on a revised Stoner-Wohlfarth model, we were able to assign dispersion parameters to an actual MTJ array with arbitrary magnetic attributes such as TMR ratio, coercivity and hysteresis loops. As a result of our work, the field sensitivity of an MTJ array was found to be inversely correlated to its anisotropy dispersion and magnetic coercivity. In the second part, we focused on the noise properties of MTJ systems. At low frequencies, the flicker noise was measured in two distinct MTJ arrays: MTJ Wheatstone bridges and MTJ discrete resistors, each in their own serial arrays. For MTJ bridges, the statistical dispersion in device resistance and normalized voltage noise were attributed to the greater-than-expected magnetization noise, whereas magnetic coupling among tightly-packed MTJ elements was found to amplify the magnetic fluctuations in the MTJ discrete resistors. Finally, high frequency shot noise measurements were carried out to study the spin-dependent charge transport in MTJ systems. The normalized shot noise, or Fano factor, exhibited a sinusoidal-like variation with a continuous change in the relative orientation between the magnetization vectors of MTJ free and reference layers. We explained the noise behavior with a model of sequential tunneling in the spin-blockade regime, in which the faster transport of majority spin electrons in tunnel barriers is modulated by the slower tunneling of minority spin electrons. Advisors/Committee Members: Xiao, Gang (Director), Mitrovic, Vesna (Reader), Dell'Antonio, Ian (Reader).

Subjects/Keywords: magnetic tunnel junctions

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, W. (2012). Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297711/

Chicago Manual of Style (16^th Edition):

Zhang, Wenzhe. “Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions.” 2012. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:297711/.

MLA Handbook (7^th Edition):

Zhang, Wenzhe. “Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions.” 2012. Web. 22 Jan 2021.

Vancouver:

Zhang W. Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:297711/.

Council of Science Editors:

Zhang W. Noise and Spin-dependent Transport in MgO-based Magnetic Tunnel Junctions. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297711/

15. Field, Scott Edward. Applications of Discontinuous Galerkin Methods to Computational General Relativity.

Degree: PhD, Physics, 2011, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:11327/

► We discuss a discontinuous Galerkin (dG) method and its application to common partial differential equations which arise in the context of general relativity. First we… (more)

▼ We discuss a discontinuous Galerkin (dG) method and its application to common partial differential equations which arise in the context of general relativity. First we consider extreme mass ratio binary (EMRB) systems. When modeling EMRBs as perturbations of a Schwarzschild black hole, the metric perturbations are described by the distributionally forced Regge-Wheeler-Zerilli (RWZ) equation. Despite the presence of jump discontinuities in the solution, our dG method achieves pointwise spectral accuracy. Particular attention is given to the common choice of trivialinitial data, and we show such unphysical specification may lead to spurious solutionswhich contaminate the physical solution indefinitely. Unintended consequences of thepersistent junk solution are considered as well as a simple prescription for removing it. Using our code we compute metric perturbations, gravitational waveforms, and self-force measurements from both circular and eccentric orbits.Next, we present a dG method for evolving the spherically reduced Generalized Baumgarte-Shapiro-Shibata-Nakamura (GBSSN) system expressed in terms of second-order spatial operators. Our multi-domain method achieves global spectralaccuracy and long-time stability on short computational domains. We discuss in detail both our scheme for the GBSSN system and its implementation. A theoretical and computational verification of the proposed scheme is given.We conclude with a preliminary look at reduced basis (RB) methods for parameterized binary systems. Our algorithm aims to construct a compact RB space from which a particular solution can be quickly and accurately recovered. We apply the algorithm to compress the space of analytic chirp gravitational waveforms. Next, the RWZ equation is revisited, and we consider extensions of the algorithm to a dG solver along with numerical evidence that a RB space exists for EMRB waveforms. Advisors/Committee Members: Hesthaven, Jan (Director), Guralnik, Gerald (Reader), Dell'Antonio, Ian (Reader).

Subjects/Keywords: Numerical Relativity

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Field, S. E. (2011). Applications of Discontinuous Galerkin Methods to Computational General Relativity. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11327/

Chicago Manual of Style (16^th Edition):

Field, Scott Edward. “Applications of Discontinuous Galerkin Methods to Computational General Relativity.” 2011. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:11327/.

MLA Handbook (7^th Edition):

Field, Scott Edward. “Applications of Discontinuous Galerkin Methods to Computational General Relativity.” 2011. Web. 22 Jan 2021.

Vancouver:

Field SE. Applications of Discontinuous Galerkin Methods to Computational General Relativity. [Internet] [Doctoral dissertation]. Brown University; 2011. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:11327/.

Council of Science Editors:

Field SE. Applications of Discontinuous Galerkin Methods to Computational General Relativity. [Doctoral Dissertation]. Brown University; 2011. Available from: https://repository.library.brown.edu/studio/item/bdr:11327/

16. Kelly, Wessyl R. Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys.

Degree: PhD, Physics, 2010, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:11025/

► The quantities and properties of the dark constituents of the universe reveal much about the past and future development of the cosmos. It is thought… (more)

▼ The quantities and properties of the dark constituents of the universe reveal much about the past and future development of the cosmos. It is thought that dark matter provides 85% of the mass in the universe, and that it is certainly the dominant component in large structures from galaxies to superclusters. Dark matter density, clustering, and quantity have repercussions for the universe's geometry, its past and future evolution (and ultimate fate), as well as for the more specific question of how structure has formed. Weak gravitational lensing is one of the only tools available to measure dark matter densities directly; most other methods measure observables that have a poorly known, and often debated, relationship to the dark mass. Although its direct sensitivity to mass distributions provides an obvious advantage for weak lensing, because it is a statistical measurement whose signal strength typically has been of the same order of magnitude as systematic and random noise, until recently it has been difficult to adequately and convincingly control for these. For this reason, weak lensing data collection has normally been specifically designed to mitigate these factors. The unique requirements for optimal weak lensing observations combined with limited telescope time have meant that there are relatively few datasets that have been used for weak lensing. There is a huge body of past and future data designed for other types of studies for which weak lensing analysis has been considered inappropriate. However, weak gravitational lensing techniques have matured. In this work for the first time, we have applied weak lensing methods to a dataset that was not engineered for weak lensing studies. The NOAO Deep Wide-Field Survey (NDWFS) optical dataset includes almost 9 square degrees over 27 subfields with a range of best seeing from 0.66" to 1.20" in three different filters (I, R, and Bw). We use this dataset to show that weak lensing analysis may now be successfully applied to data formerly not considered suitable. We find that detections of cluster-sized mass densities from this dataset perform comparably to detections from previous surveys. We correlate our detections with the Chandra XBoötes results for extended sources. Advisors/Committee Members: Dell'Antonio, Ian (Director), Cutts, David (Reader), Tucker, Gregory (Reader).

Subjects/Keywords: weak gravitational lensing

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kelly, W. R. (2010). Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11025/

Chicago Manual of Style (16^th Edition):

Kelly, Wessyl R. “Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys.” 2010. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:11025/.

MLA Handbook (7^th Edition):

Kelly, Wessyl R. “Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys.” 2010. Web. 22 Jan 2021.

Vancouver:

Kelly WR. Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys. [Internet] [Doctoral dissertation]. Brown University; 2010. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:11025/.

Council of Science Editors:

Kelly WR. Measuring Weak Gravitational Lensing in General Purpose Imaging Surveys. [Doctoral Dissertation]. Brown University; 2010. Available from: https://repository.library.brown.edu/studio/item/bdr:11025/

17. Sorensen, Peter F. A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment.

Degree: PhD, Physics, 2008, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:11023/

► Recent astrophsyical observations indicate that about 23% of the matter in the universe exists as non-luminous, non-baryonic dark matter. General thermodynamic arguments suggest that if… (more)

▼ Recent astrophsyical observations indicate that about 23% of the matter in the universe exists as non-luminous, non-baryonic dark matter. General thermodynamic arguments suggest that if an as-yet undiscovered weakly interacting particle were in thermal equilibrium in the early universe, it could have a cosmologically interesting relic abundance today. Dark matter particles are predicted to have collapsed into isothermal halos on a galactic scale. Minimal super-symmetric extensions of the standard model predict the existence of a stable particle with a mass in the range 10-1000 GeV c -2, and a an interaction cross section with ordinary matter σχ < 10 -36cm 2. For the past two decades, numerous experiments have been deployed with the aim of direct or indirect detection of dark matter. XENON10 is a direct-detection liquid Xe experiment, with event-by-event 3D position reconstruction. Since dark matter does not interact electromagnetically, it's signature in a Xe detector is expected to be a low-energy nuclear recoil. Particle interactions in Xe create scintillation light ( S1) and ionization. The ionization is drifted across the active Xe target and converted into a proportional scintillation signal ( S2) by an external electric field. The ratio y = log10( S2/ S1) is larger for β and ɣ background events than for nuclear recoils, as determined by neutron calibration data. This allows event-by-event discrimination of background from the expected signal. In 2007 XENON10 eclipsed CDMS II as the most sensitive direct-detection experiment, excluding the existence of particle dark matter with a cross-section (normalized to a single nucleon) σχ > 10 -43cm 2at a particle mass of 100 GeV c -2(90% C.L.). Liquid Xe technology is extremely promising since it is easily scaled to larger target mass, which will allow greater sensitivity to particle dark matter interactions. I discuss the XENON10 detector, deployment, operation, analysis and dark matter exclusion results. I also present a new method to determine the light yield of Xe for nuclear recoils, which is essential for calibrating the nuclear recoil energy scale and understanding the detector threshold. Advisors/Committee Members: Gaitskell, Richard (Director), Robert, Lanou (Reader), Dell'Antonio, Ian (Reader).

Subjects/Keywords: WIMP

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sorensen, P. F. (2008). A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:11023/

Chicago Manual of Style (16^th Edition):

Sorensen, Peter F. “A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment.” 2008. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:11023/.

MLA Handbook (7^th Edition):

Sorensen, Peter F. “A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment.” 2008. Web. 22 Jan 2021.

Vancouver:

Sorensen PF. A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment. [Internet] [Doctoral dissertation]. Brown University; 2008. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:11023/.

Council of Science Editors:

Sorensen PF. A Position-Sensitive Liquid Xenon Time-Projection Chamber for Direct Detection of Dark Matter: The XENON10 Experiment. [Doctoral Dissertation]. Brown University; 2008. Available from: https://repository.library.brown.edu/studio/item/bdr:11023/

18. Eguchi, Hiroshi. Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions.

Degree: PhD, Physics, 2008, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:37/

► This thesis describes the development of a metallic metallic calorimeters (MMC) for a soft x-ray detection. A MMC utilize diluted concentration of a paramagnetic material… (more)

Subjects/Keywords: Au:Er film; magnetic microcalorimeter; x-ray detector; detector array

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Eguchi, H. (2008). Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:37/

Chicago Manual of Style (16^th Edition):

Eguchi, Hiroshi. “Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions.” 2008. Doctoral Dissertation, Brown University. Accessed January 22, 2021. https://repository.library.brown.edu/studio/item/bdr:37/.

MLA Handbook (7^th Edition):

Eguchi, Hiroshi. “Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions.” 2008. Web. 22 Jan 2021.

Vancouver:

Eguchi H. Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions. [Internet] [Doctoral dissertation]. Brown University; 2008. [cited 2021 Jan 22]. Available from: https://repository.library.brown.edu/studio/item/bdr:37/.

Council of Science Editors:

Eguchi H. Study of Vapor-Deposited Au:Er Films and Development of a Metallic Magnetic Calorimeter for Future X-ray Astronomy Missions. [Doctoral Dissertation]. Brown University; 2008. Available from: https://repository.library.brown.edu/studio/item/bdr:37/

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations