Evaluation of the bubble spectrometer performance in space-like neutron fields

The Space Bubble Detector Spectrometer (SBDS) consists of six bubble detectors each with a different neutron energy threshold. To characterize the spectrometer in a space-like neutron field, a series of experiments were conducted with high-energy neutrons from 6.0×105 eV to 7.50 ×108 eV at the Los Alamos National Laboratory. The analysis of the obtained data provided a calibration factor to adjust the neutron sensitivity, to high-energy neutrons of the SBDS, based on its response function matrix. The results suggest that the SBDS underestimates the ambient dose equivalent in a space-like neutron field by a factor of approximately 1.55. Consequently, the readings of the spectrometer should be adjusted when used in a space radiation environment. This thesis is dedicated to studying the SBDS in a space-like neutron spectrum. It outlines a part of the results of international ground testing experimental sessions of the space instrumentation supported by the Canadian Space Agency.

Name thesis:degree_name

Master of Applied Science (MASc)

Discipline thesis:degree_discipline

Nuclear Engineering

Grantor

University of Ontario Institute of Technology

Year dc:date.issued

2021

Author dc:creator

• Montague, Talon James

Advisor dc:contributor.advisor

• Machrafi, Rachid

• Spectrometer
• Space Bubble Detector
• International Space Station

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10155/1263

OAI identifier oai:identifier

oai:ontariotechu.scholaris.ca:10155/1263