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University of Alberta

1. Friesen, Hal. Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments.

Degree: MS, Electrical & Computer Engineering, 2011, University of Alberta

Fast ignition (FI) decouples the compression and ignition in normal Inertial Confinement Fusion schemes, and can rely on hot electron transport to ignite the compressed core. In order to study electron transport, characteristic K-alpha X-ray emission from copper tracer layers is often employed. A Kirkpatrick-Baez X-ray microscope was constructed using grazing incidence platinum mirrors and characterized to image Cu K-alpha emission in high intensity Fast Ignition experiments. The broad spectral window from 4 to 9 keV enables imaging of both the copper K-alpha emission as well as the emitted Bremsstrahlung radiation from the high intensity interaction spot. A resolution of 30 um or less over a 300 um field of view has been confirmed experimentally. Results from cone-wire experiments are presented where the emission from the high intensity interaction spot and the copper K-alpha emission from the copper wire tip were analysed as a function of prepulse energy.

Subjects/Keywords: Inertial Confinement Fusion; sputtering; preplasma emission; chirped-pulse amplification; Hot electrons; clean energy; copper K-alpha; preplasma scalelength; imaging; line-spread function; ray-tracing; Bremsstrahlung; thermonuclear fusion; cone-wire; KB microscope; x-ray tube; mirror bending; preplasma; laser-plasma interaction; high-intensity; Reflectivity; superpolished; star power; instrumentation; x-ray imaging; wire transport; diagnostic; laser; Resolution; grazing-incidence; point-spread function; re-entrant; plasma; prepulse; Fast Ignition; platinum-coated; alternative energy; absorption; multilayer mirror; spherical; raytracing

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

APA (6th Edition):

Friesen, H. (2011). Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/pz50gx81b

Chicago Manual of Style (16th Edition):

Friesen, Hal. “Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments.” 2011. Masters Thesis, University of Alberta. Accessed December 05, 2020. https://era.library.ualberta.ca/files/pz50gx81b.

MLA Handbook (7th Edition):

Friesen, Hal. “Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments.” 2011. Web. 05 Dec 2020.

Vancouver:

Friesen H. Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2020 Dec 05]. Available from: https://era.library.ualberta.ca/files/pz50gx81b.

Council of Science Editors:

Friesen H. Kirkpatrick-Baez Microscope for Hard X-Ray Imaging of Fast Ignition Experiments. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/pz50gx81b

2. Seidu, Iddrisu. Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System.

Degree: MSin Mechanical Engineering, Washkewicz College of Engineering, 2015, Cleveland State University

A newly developed production test stand for measuring the spray angle of a pressure swirl atomizer was constructed and used to measure a product line of these pressure swirl atomizers – the macrospray atomizer. This new test stand, utilizing constant temperature hot wire anemometers, captures the spray angle data based on the voltage drop the hot wire probes see as they traverse the spray cone of the atomizer and as fluid droplets impinge upon the wire. Datasets acquired from the experiments are compared and correlated with computational fluid dynamics (CFD) simulation data. In addition, angles obtained from another type of spray characterization technique, the spray angle device, are also compared to see how closely CFD can predict the angle as captured by this new stand and how reliable and independent of human error it is. Another nozzle with a pressure swirl atomizer, the conventional atomizer, is also simulated to compare its agreement with experimental values obtained from the spray angle device. Finally, the datasets are compared to understand if the CFD results, when compared to the two spray characterization techniques used in this thesis for both the nozzle and atomizer can be utilized to assist in future atomizer designs. For the macrospray atomizer, it was found through the experiments that the hot wire stand predicts the spray angle more accurately within 10% error. The spray angle device measured the spray angles within an error of 29% while the CFD introduced more error into the spray angle measurement obtained, within 7% to 93%. The conventional atomizer was found to have an error up to 18% with CFD results and up to 28% with the manual spray angle device. Advisors/Committee Members: Ibrahim, Mounir (Committee Chair).

Subjects/Keywords: Mechanical Engineering; Fluid Dynamics; Engineering; atomization; spray; angles; hot wire anemometry; CFD; simulation; computational fluid dynamics; atomizers; atomizer; pressure swirl atomizer; spray cone; spray; nozzle; nozzles; sprays; measurement; spray angle; cone; air core; hot wire anemometers

…45 2.6.3 Hot Wire Anemometry €¦ €¦ €¦ €¦ €¦ €¦ €¦ €¦ €¦. €¦46 2.6.4 Mechanical Probe Method… …55 3.2 Hot Wire Test Stand, Macrospray Atomizer €¦ €¦ €¦ €¦ €¦β€¦. €¦β€¦....…59 3.3 Spray Angle… …Wire Test Stand Experiment, Macrospray Atomizer €¦β€¦.. €¦ 87 5.3 Results from Spray Bench Test… …Atomizer.. €¦ €¦ €¦ €¦ €¦ €¦ €¦ €¦ €¦. €¦107 6.3 On Hot Wire Constant Temperature Anemometry and the Test… …119 ix NOMENCLATURE 2πœƒπ‘š = spray angle (cone angle) [ ΒΊ ] πœ€… 

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

APA (6th Edition):

Seidu, I. (2015). Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System. (Masters Thesis). Cleveland State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762

Chicago Manual of Style (16th Edition):

Seidu, Iddrisu. “Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System.” 2015. Masters Thesis, Cleveland State University. Accessed December 05, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762.

MLA Handbook (7th Edition):

Seidu, Iddrisu. “Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System.” 2015. Web. 05 Dec 2020.

Vancouver:

Seidu I. Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System. [Internet] [Masters thesis]. Cleveland State University; 2015. [cited 2020 Dec 05]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762.

Council of Science Editors:

Seidu I. Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System. [Masters Thesis]. Cleveland State University; 2015. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762

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