GAMMA REFERENCE FIELD OF (_^137)Cs SOURCE AT THE MILITARY INSTITUTE OF CHEMICAL AND ENVIRONMENTAL ENGINEERING

Nguyễn Minh Công; Đinh Tiến Hùng; Cao Văn Hiệp; Nguyễn Ngọc Quỳnh; Phạm Đức Khuê; Lê Ngọc Thiệm

doi:10.34238/tnu-jst.5893

GAMMA REFERENCE FIELD OF (_^137)Cs SOURCE AT THE MILITARY INSTITUTE OF CHEMICAL AND ENVIRONMENTAL ENGINEERING

About this article

Received: 21/04/22 Revised: 26/05/22 Published: 27/05/22

Authors

1. Nguyen Minh Cong, Military Institute of Chemical and Enviromental Engineering
2. Dinh Tien Hung, Military Institute of Chemical and Enviromental Engineering
3. Cao Van Hiep, Military Institute of Chemical and Enviromental Engineering
4. Nguyen Ngoc Quynh, Institute for Nuclear Science and Technology
5. Pham Duc Khue, Institute for Nuclear Science and Technology
6. Le Ngoc Thiem , Institute for Nuclear Science and Technology

Abstract

This paper presents the determination of the conventional true values of dose rates (i.e., ambient dose rate - , personal dose rate - ) in the gamma reference field of a source at the Military Institute of Chemical and Environmental Engineering. The conventional true values of , were determined at various distances from the source center by three different approaches (i.e., by Monte Carlo simulations using MCNP6 code, theoretical calculations based on the source activity, and measurements using a calibrated ion chamber). The values of and obtained from these three approaches show the difference within 12% with the uncertainties within 13%. The establishment of this gamma reference field was complied with the international criteria ISO 4037.

Keywords

137Cs; MCNP6; Conventional true values; Reference field; Kerma rate

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References

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DOI: https://doi.org/10.34238/tnu-jst.5893

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