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Published: 2018-12-30
Abstract Views: 113
Views PDF: 67
DOI: https://doi.org/10.53747/jnst.v8i4.64
Issue
Vol. 8 No. 4 (2018)
Section
Articles
How to Cite
Luong Thi, H., Nguyen Tien, P., Pham Thi, B., & Nguyen Du, H. (2018). Development of neutron survey meter using prescila neutron probe. Nuclear Science and Technology, 8(4), 26-33. https://doi.org/10.53747/jnst.v8i4.64

Development of neutron survey meter using prescila neutron probe

Luong Thi Hong1, Nguyen Tien Phong1, Pham Thi Bich1, Nguyen Duc Huyen1
1 Center for Non – Destructive Evaluation; 140 Nguyen Tuan, Thanh Xuan, Hanoi, Vietnam

Main Article Content

Abstract

This paper presents the design and validation of a neutron survey meter. The meter consists of a PRESCILA neutron probe (with good sensitivity, directional response, gamma rejection, and enhanced high-energy response to 20 MeV) and an electrometer developed at Non-Destructive Evaluation center. The homogeneity response of the PRESCILA neutron probe was investigated as a function of distances from the 241Am - 9Be source in order to obtain the appropriate distance for accurate count-rate measurements using the neutron survey meter. A system consists of the PRESCILA neutron probe and the Ludlum Model 2326 electrometer was then used for measuring neutron ambient dose equivalent rates in the range from 50 cm to 200 cm with the step of 25 cm. The relationship between the count-rates and neutron dose equivalent rates (in the distance ranged from 50 to 200 cm) were deduced to validate the proper operation of the neutron survey meter.

Article Details

Keywords

Neutron survey meter, PRESCILA neutron probe, Ludlum electrometer

References

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