2024-03-28T21:35:22Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00030629
2023-01-16T04:54:23Z
320:2524:2525:2533
Development and applications of new position-sensitive radiation detectors
Mori, Chizuo
101800
position-sensitive radiation detector
proportional counter
neutron
optical fiber
imaging plate
radioactivity
1997-03-31
The research work in our laboratory since 1982 on the development of position-sensitive nuclear radiation detectors and on their applications is reviewed.<br/>The work started on a simple position-sensitive proportional counter for the precise measurement of radioactivity of gaseous samples without suffering the end effect in a proportional counter, which was successfully adopted in some research institutes.<br/>For neutron measurement, various types of [3]He proportional counters were developed; slender counters to be inserted into narrow spaces, nuclear fission counters etc. Detectors which can be inserted into extremely narrow spaces to measure neutron flux distributions were developed using an optical fiber whose tip was coated with a mixture of scintillator, neutron converter and adhesive material. They can be used for the measurement of the distributions of thermal neutrons, fast neutrons or [γ]-rays by changing the material of the converter. They are being adopted in some research laboratories.<br/>Imaging Plate was newly applied to the measurement of natural radioactivity distributions contained in vegetables, meat and other natural substances. The images are very effective to let the publics realize the presence of natural radioactivity.
departmental bulletin paper
School of Engineering, Nagoya University
1997-03-31
Memoirs of the School of Engineering, Nagoya University
2
48
132
193
0919-0805
eng