Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (12): 120401-120401.

• NUCLEAR ELECTRONICS AND INSTRUMENTATION •

### Theoretical design of a scintillation detector for space protons radiation effective dose measurements

ZHANG Shoujie1,2, JIANG Xinbiao1,2, LI Da1,2, YU Xiaoren1,2, MIAO Liangliang1,2, MA Yan1,2

1. 1 Northwest Institute of Nuclear Technology, Xi'an 710024, China;
2 State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Xi'an 710024, China
• Received:2016-08-10 Revised:2016-10-07 Online:2016-12-10 Published:2016-12-10
• Supported by:

Supported by National Natural Science Foundation of China (No.11305127), State Key Lab of Intense Pulsed Radiation Simulation and Effect Basic Research Foundation (No.SKLIPR1216)

Abstract:

Background: Space protons radiation exposure is one of the most considerable concern in terms of radiation risk to astronauts during their occupational activities in space, and effective dose is important for the estimation of the radiation hazard. However, there is no technical way to monitor effective dose for space protons radiation until now. Purpose: This study aims to monitor the effective dose of space protons radiation to astronauts. Methods: Contraposing isotropic protons radiation in space, a scintillation detector was designed using Monte Carlo simulation program. By means of special design of the detector structure, the energy isotropic protons in the range of 20-400 MeV deposited in the detector is mostly proportional to the effective dose provided by International Commission on Radiological Protection (ICRP) report No.116. The effective dose is monitored by measuring the deposited energy. Results: For the proton energy spectra of AP8MIN model and random sampling, the relative deviation between the results of the ICRP report No.116 and the detector is less than ±8% by numerical calculation. Conclusion: Theoretically, this detector can monitor the effective dose of space protons radiation to astronauts.

CLC Number:

• TL99