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Initial Characterization of a Pixelated Thermal-Neutron Detector

Jalgén, Amanda LU (2017) PHYM01 20171
Nuclear physics
Department of Physics
Abstract
The purpose of this project was to develop a better understanding of the re- sponse of a pixelated thermal-neutron detector, which will be used as a thermal- neutron detector at one of the beam lines at the European Spallation Source in Lund, Sweden. The detector consists of a thin Lithium6-glass scintillator, a multi-anode photomultiplier tube and associated read-out electronics. Initial characterizations of the response to laser light and a collimated alpha-particle beam were performed in collaboration with the Department of Nuclear Physics at the University of Glasgow. The response of the prototype to the laser light was demonstrated to be reproducible. The absolute gain for each pixel provided by the manufacturer for the multi-anode... (More)
The purpose of this project was to develop a better understanding of the re- sponse of a pixelated thermal-neutron detector, which will be used as a thermal- neutron detector at one of the beam lines at the European Spallation Source in Lund, Sweden. The detector consists of a thin Lithium6-glass scintillator, a multi-anode photomultiplier tube and associated read-out electronics. Initial characterizations of the response to laser light and a collimated alpha-particle beam were performed in collaboration with the Department of Nuclear Physics at the University of Glasgow. The response of the prototype to the laser light was demonstrated to be reproducible. The absolute gain for each pixel provided by the manufacturer for the multi-anode photomultiplier tube was not repro- ducible. For the first time ever, the response of the prototype to a collimated alpha-particle beam was determined. Pixel-to-pixel gain variations were gain corrected using both the measured laser correction matrix and the data sheet from the manufacturer. Qualitative similarities between the results using the two calibration methods clearly exist. Further study is warranted. (Less)
Popular Abstract
Neutrons are small particles with no charge. Together with protons, they are what makes up the nuclei of the atoms. The fact that neutrons have no charge makes them excellent to use as probes in material science. This is what researcher are planning to do at the European Spallation Source (ESS) which is currently being built in Lund, Sweden and is expected to be finished in 2023. This project is about how you detect these neutrons after they have interacted with a sample.
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author
Jalgén, Amanda LU
supervisor
organization
course
PHYM01 20171
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Neutron, detector, spallation, scintillator, photomultiplier tube
language
English
id
8925518
date added to LUP
2017-09-19 09:45:50
date last changed
2017-09-19 09:45:50
@misc{8925518,
  abstract     = {The purpose of this project was to develop a better understanding of the re- sponse of a pixelated thermal-neutron detector, which will be used as a thermal- neutron detector at one of the beam lines at the European Spallation Source in Lund, Sweden. The detector consists of a thin Lithium6-glass scintillator, a multi-anode photomultiplier tube and associated read-out electronics. Initial characterizations of the response to laser light and a collimated alpha-particle beam were performed in collaboration with the Department of Nuclear Physics at the University of Glasgow. The response of the prototype to the laser light was demonstrated to be reproducible. The absolute gain for each pixel provided by the manufacturer for the multi-anode photomultiplier tube was not repro- ducible. For the first time ever, the response of the prototype to a collimated alpha-particle beam was determined. Pixel-to-pixel gain variations were gain corrected using both the measured laser correction matrix and the data sheet from the manufacturer. Qualitative similarities between the results using the two calibration methods clearly exist. Further study is warranted.},
  author       = {Jalgén, Amanda},
  keyword      = {Neutron,detector,spallation,scintillator,photomultiplier tube},
  language     = {eng},
  note         = {Student Paper},
  title        = {Initial Characterization of a Pixelated Thermal-Neutron Detector},
  year         = {2017},
}