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You searched for subject:(Deuterated scintillators). Showing records 1 – 2 of 2 total matches.

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University of Michigan

1. Ojaruega, Mitaire I. Fast Neutron Measurements using Deuterated Liquid Scintillators.

Degree: PhD, Applied Physics, 2009, University of Michigan

This dissertation in experimental nuclear physics describes the construction, design, assembly and tests of a novel 2" X 2" deuterated liquid scintillator, and a series of nuclear reaction experiments using the detector as a fast neutron detector. This detector is unique because of its pulse-shape discrimination capabilities and excellent detection eciency. It is deuterium based and it is liquid. Because of the deuterated benzene (C6D6) inside the liquid scintillator, we are able to determine neutron energies without the use of the time of flight technique. The (d,n) nuclear reactions studied with this detector include the symmetric collision of a 2H beam on a 257 g/cm2 CD2 target, a 2H beam on a 400 g/cm2 enriched 13C target at laboratory energy of E = 9 MeV and a similar 2H beam on a 941 g/cm2 12C target. The experiments were conducted at the joint University of Michigan and University of Notre Dame (UND) Radioactive Nuclear Beam Facility at UND. To verify the detector response to monoenergetic neutrons, additional measurements were done using the 2.45 MeV and 14 MeV neutron generators at the University of Michigan Department of Nuclear Engineering and Radiological Sciences Neutron Science Laboratory. A Monte Carlo simulation code was subsequently modied to simulate the detector response to neutrons. Since very little information is available on detectors using deuterated scintillators, it was important to predict the detector response to various reaction neutron energies to permit use of these detectors in other experiments. Advisors/Committee Members: Becchetti, Jr., Frederick D. (committee member), Amro, Hanan (committee member), Kolata, James (committee member), Krisch, Jean P. (committee member), Neal, Homer A. (committee member).

Subjects/Keywords: Nuclear Reactions; Deuterated Liquid Scintillators; Physics; Science

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APA (6th Edition):

Ojaruega, M. I. (2009). Fast Neutron Measurements using Deuterated Liquid Scintillators. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/63798

Chicago Manual of Style (16th Edition):

Ojaruega, Mitaire I. “Fast Neutron Measurements using Deuterated Liquid Scintillators.” 2009. Doctoral Dissertation, University of Michigan. Accessed April 10, 2021. http://hdl.handle.net/2027.42/63798.

MLA Handbook (7th Edition):

Ojaruega, Mitaire I. “Fast Neutron Measurements using Deuterated Liquid Scintillators.” 2009. Web. 10 Apr 2021.

Vancouver:

Ojaruega MI. Fast Neutron Measurements using Deuterated Liquid Scintillators. [Internet] [Doctoral dissertation]. University of Michigan; 2009. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/2027.42/63798.

Council of Science Editors:

Ojaruega MI. Fast Neutron Measurements using Deuterated Liquid Scintillators. [Doctoral Dissertation]. University of Michigan; 2009. Available from: http://hdl.handle.net/2027.42/63798

2. Turko, Joseph. Detector Response Simulations of Hydrocarbon Neutron Scintillators.

Degree: MS, Department of Physics, 2017, University of Guelph

DESCANT is a novel neutron detector array for use in nuclear structure and astrophysics studies with radioactive-ion beams. Comprised of 70 hexagonical deuterated scintillation detectors, DESCANT is located at the ISAC facility of TRIUMF, where it can be used in combination with the GRIFFIN or TIGRESS gamma-ray spectrometers in a multitude of nuclear decay and reaction experiments. The deuterated scintillator used in the DESCANT detectors produces a peaked structure in the detector response spectra that can provide neutron energy measurements without using traditional time-of-flight methods. This thesis will present the framework for a comprehensive GEANT4 simulation of the DESCANT array. The capabilities of the G4NeutronHP physics library in accurately reproducing interaction cross-sections below 10 MeV is verified. The G4Scintillation model is then used to investigate the geometric dependence of the light collection process in a single DESCANT detector. This is followed by an extensive study of simulated response functions of two neutron scintillators. The first is a well studied proton-recoil scintillator (NE-213) and the second is a deuteron-recoil scintillator (EJ-315), similar to that which is used by DESCANT. The detector response to mono-energetic neutrons is then measured for the two scintillators using cylindrical detectors with 11.43 cm diameter and 2.54 cm thickness geometries. A parameterization of the light yield is then calculated for both scintillators by conducting a chi-squared minimization between experimental and simulated pulse-height spectra. Finally, the current status of the DESCANT array geometry in GEANT4 is presented. Advisors/Committee Members: Garrett, Paul (advisor).

Subjects/Keywords: Neutron detectors; Detector response function; NE-213; EJ-315; DESCANT; Nuclear physics; Deuterated scintillators; Neutron scintillators; GEANT4; Pulse-height spectra

…more accurate unfolding algorithms with deuterated scintillators [1, 18, 19]. 1.3… …Pulse-height response of proton and deuteron recoil scintillators to 3 MeV neutrons… …61 4.6 Penetration depth of neutrons in a BC-537 deuterated scintillator. . . . . . . 62… …DESCANT - the Deuterated Scintillator Array for Neutron Tagging - is a novel neutron 3… …each filled with ∼ 2 litres of deuterated benzene scintillator (C6 D6 ). Recoiling… 

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

APA (6th Edition):

Turko, J. (2017). Detector Response Simulations of Hydrocarbon Neutron Scintillators. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11602

Chicago Manual of Style (16th Edition):

Turko, Joseph. “Detector Response Simulations of Hydrocarbon Neutron Scintillators.” 2017. Masters Thesis, University of Guelph. Accessed April 10, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11602.

MLA Handbook (7th Edition):

Turko, Joseph. “Detector Response Simulations of Hydrocarbon Neutron Scintillators.” 2017. Web. 10 Apr 2021.

Vancouver:

Turko J. Detector Response Simulations of Hydrocarbon Neutron Scintillators. [Internet] [Masters thesis]. University of Guelph; 2017. [cited 2021 Apr 10]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11602.

Council of Science Editors:

Turko J. Detector Response Simulations of Hydrocarbon Neutron Scintillators. [Masters Thesis]. University of Guelph; 2017. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/11602

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