Title :
A neutron flux monitor for a reactor neutron beam facility
Author :
Kandlakunta, Praneeth ; Mulligan, Padhraic ; Turkoglu, Danyal ; Lei Cao
Author_Institution :
Dept. of Mech. & Aerosp. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
Oct. 27 2012-Nov. 3 2012
Abstract :
A neutron beam monitor with 6Li scintillator glass has been developed for the neutron beam facility at the Ohio State University Research Reactor. The beam monitor is primarily intended to monitor neutron flux and provide safety indications to researchers entering or working in the experimental area. A large LED display of the beam monitor offers an independent safety feature at the facility and enables a standalone operation. Preliminary measurements revealed nonlinearity in the response of the beam monitor to neutron flux, which is attributed to the saturation of current in the photomultiplier tube (PMT), the inherent gamma sensitivity of the 6Li glass, and the non-linearity of the scintillator. A silicon (Si) PIN photodiode is also being studied as an alternative to the PMT.
Keywords :
gamma-ray detection; neutron beams; neutron flux; particle beam diagnostics; photomultipliers; silicon radiation detectors; solid scintillation detectors; 6Li scintillator glass; LED display; Ohio State University Research Reactor; beam monitor response nonlinearity; current saturation; gamma sensitivity; neutron flux monitor; photomultiplier tube; reactor neutron beam facility; silicon PIN photodiode;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-2028-3
DOI :
10.1109/NSSMIC.2012.6551460
