Development of a neutron monitor based on embedded EPICS

Zhu Wenchao; Lin Hanshang; Zhou Zeran; Jiang Shiping

doi:10.11884/HPLPB202133.200168

Volume 33 Issue 2

Jan. 2021

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Zhu Wenchao, Lin Hanshang, Zhou Zeran, et al. Development of a neutron monitor based on embedded EPICS[J]. High Power Laser and Particle Beams, 2021, 33: 026001. doi: 10.11884/HPLPB202133.200168

Citation:

Zhu Wenchao, Lin Hanshang, Zhou Zeran, et al. Development of a neutron monitor based on embedded EPICS[J]. High Power Laser and Particle Beams, 2021, 33: 026001. doi: 10.11884/HPLPB202133.200168

Zhu Wenchao, Lin Hanshang, Zhou Zeran, et al. Development of a neutron monitor based on embedded EPICS[J]. High Power Laser and Particle Beams, 2021, 33: 026001. doi: 10.11884/HPLPB202133.200168

Citation:

Zhu Wenchao, Lin Hanshang, Zhou Zeran, et al. Development of a neutron monitor based on embedded EPICS[J]. High Power Laser and Particle Beams, 2021, 33: 026001. doi: 10.11884/HPLPB202133.200168

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Development of a neutron monitor based on embedded EPICS

doi: 10.11884/HPLPB202133.200168

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029

Received Date: 2020-06-16
Rev Recd Date: 2020-08-10
Publish Date: 2021-01-07

Abstract

Abstract

Aiming at the radiation protection and safety requirements of HLS-II (HLS-Ⅱ), a neutron monitor based on embedded EPICS was developed for neutron monitoring of radiation field and environment. The control system of HLS-II is based on EPICS (Experimental Physics and Industrial Control System) architecture. In order to reduce the middle link of the radiation monitoring system and improve the reliability of the personal safety chain of HLS-II, a neutron monitor based on embedded EPICS control system was developed. The key component of the neutron monitor-detector is the BF₃ proportional counter tube. By adding a 2 kV positive high voltage bias to the weak electrical signal generated by the proportional counter tube, the AC coupling intervenes in the preamplifier for amplification, and then outputs a pulse signal with a fixed width. The signal is counted by the CORTEX-M3 circuit, and then processed by the CORTEX-A8 circuit to publish the data to the local area network. The performance of the developed monitor has been preliminarily tested by using Am-Be neutron source and on-site radiation environment of HLS-II. The results show that the monitor meets the design requirements and can be used for neutron monitoring.
- HLS-II,
- Cortex-M3 circuit,
- preamplifier,
- embedded EPICS

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References(11)

References

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