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TitleA new compact neutron spectrometer
AuthorComrie, Angus
SubjectPhysics
Date2022-11-24T12:36:53Z
Date2022-11-24T12:36:53Z
Date2016_
Date2022-11-24T12:35:56Z
TypeDoctoral Thesis
TypeDoctoral
TypePhD
Formatapplication/pdf
AbstractA new compact neutron spectrometer has been designed, developed and characterized. The detector is based on EJ299-33 plastic scintillator coupled to silicon photomultipliers, and a digital implementation of pulse shape discrimination is used to separate events associated with neutrons from those associated with gamma-rays. The spectrometer is suitable over the neutron energy range 1 – 100 MeV, and the development illustrated with measurements made using an Am-Be radioisotopic source, a D-T sealed tube neutron generator and quasi-monoenergetic neutron beams produced using the iThemba LABS cyclotron. A segmented variation of the spectrometer is capable of providing directional information through the comparison of count rates between scintillator cells.
PublisherFaculty of Science
PublisherDepartment of Physics
Identifierhttp://hdl.handle.net/11427/36908
Identifierhttps://open.uct.ac.za/bitstream/11427/36908/1/thesis_sci_2016_comrieangus.pdf