Chinese Physics C > 1987, Vol. 11 > Issue(5): 609-613

A NEW KIND OF POCKET GAMMA-NEUTRON DOSERATE CHIRPER

LEI Chuan-Heng^,

Institute of High Energy Physics, Academia Sinica, Beijing

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Abstract：
In order to avoid unnecessary or unallowable exposure in the gamma-neutron mixed field, the radioactive-contact person should know the radiation environment at any time by himself when he is working. A new kind of pocket radiation doserate monitor (chirper) based on silicon PIN photodiode as detector is designed. It can be used to monitor the gamma doserate in the order of 1 mrem/h and the neutron doserate in the order of 10 mrem/h simultaneously. In this paper, the detector selection, the circuit design, the construction and the performance of the chirper prototype are described.
References

[1] R. C. Raffnsoe, RP-CD/83-8, CERN，August, 1983.[2] 雷传蓄等, 核仪器与方法, 5(1985), 71.

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LEI Chuan-Heng. A NEW KIND OF POCKET GAMMA-NEUTRON DOSERATE CHIRPER[J]. Chinese Physics C, 1987, 11(5): 609-613.

LEI Chuan-Heng. A NEW KIND OF POCKET GAMMA-NEUTRON DOSERATE CHIRPER[J]. Chinese Physics C, 1987, 11(5): 609-613. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A NEW KIND OF POCKET GAMMA-NEUTRON DOSERATE CHIRPER

LEI Chuan-Heng^,

Corresponding author:LEI Chuan-Heng,

Institute of High Energy Physics, Academia Sinica, Beijing

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1987-10-05

Abstract:In order to avoid unnecessary or unallowable exposure in the gamma-neutron mixed field, the radioactive-contact person should know the radiation environment at any time by himself when he is working. A new kind of pocket radiation doserate monitor (chirper) based on silicon PIN photodiode as detector is designed. It can be used to monitor the gamma doserate in the order of 1 mrem/h and the neutron doserate in the order of 10 mrem/h simultaneously. In this paper, the detector selection, the circuit design, the construction and the performance of the chirper prototype are described.