Simulated workplace neutron fields of 241Am–Be source moderated by polyethylene spheres

Simulated workplace neutron fields of a 241 Am–Be source moderated by polyethylene spheres have been developed. The characterization in terms of neutron fluence rate and neutron ambient dose equivalent rate, H ∗ ( 10 ) , was performed using Bonner sphere spectrometer and the MAXED and FRUIT unfoldin...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2019-07, Vol.321 (1), p.313-321
Main Authors: Le, Thiem Ngoc, Hoang, Sy Minh Tuan, Nguyen, Quynh Ngoc, Liamsuwan, Thiansin, Tran, Hoai-Nam
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
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Summary:Simulated workplace neutron fields of a 241 Am–Be source moderated by polyethylene spheres have been developed. The characterization in terms of neutron fluence rate and neutron ambient dose equivalent rate, H ∗ ( 10 ) , was performed using Bonner sphere spectrometer and the MAXED and FRUIT unfolding codes. The neutron fluence rates and the H ∗ ( 10 ) rates obtained from the two codes are in good agreement with the discrepancies of 8% and 6%, respectively. The neutron ambient dose equivalent-averaged energies and the neutron fluence-to-dose equivalent conversion coefficients were also evaluated in comparison between the two codes. The discrepancies are
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06577-8