Characteristics of Simulated Workplace Neutron Standard Fields

Le Ngoc Thiem, Nguyen Ngoc Quynh, Dang Thi My Linh, Phan Thi Huong
Author affiliations

Authors

  • Le Ngoc Thiem Institute for Nuclear Science and Technology, VINATOM, 179 Hoang Quoc Viet, Hanoi, Vietnam
  • Nguyen Ngoc Quynh Institute for Nuclear Science and Technology, VINATOM, 179 Hoang Quoc Viet, Hanoi, Vietnam
  • Dang Thi My Linh
  • Phan Thi Huong Institute of Information Technology and Radiation Application, Tan Trieu, Thanh Tri, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/30/1/14275

Keywords:

neutron fluence, ambient dose equivalent, simulated workplace neutron standard field, conversion coefficients

Abstract

This paper presents the development of simulated workplace neutron standard fields at the Institute for Nuclear Science and Technology with the 241Am-Be source moderated by polyethylene spheres with diameters of 15 cm and 30 cm. The characterization of the standard fields (in terms of neutron fluence rates and neutron ambient dose equivalent rates) was performed using Bonner sphere spectrometer system together with MAXED and FRUIT unfolding codes. The related quantities such as neutron dose equivalent-averaged energies and fluence-to-ambient dose equivalent conversion coefficients were also determined. The discrepancies of values are satisfied the standard uncertainty criteria as recommended by the International Standard Organization 12789 series. It implies that the simulated workplace neutron standard fields can be applied in the practical works for calibration purposes.

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References

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Published

05-03-2020

How to Cite

[1]
L. N. Thiem, N. N. Quynh, D. T. M. Linh, and P. T. Huong, “Characteristics of Simulated Workplace Neutron Standard Fields”, Comm. Phys., vol. 30, no. 1, p. 71, Mar. 2020.

Issue

Vol. 30 No. 1 (2020)

Section

Papers

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Received 20-08-2019
Accepted 05-02-2020
Published 05-03-2020