Study on Radiation Field Distribution and Attenuation Rate of Radioisotope Thermophotovoltaic System

Han Xilong; Lu Mingyu; Yang Aixiang; Shao Jianxiong; Li Ning; Han Chengzhi; Tian Dai; Chen Ximeng; Qiu Jiawen

doi:10.13832/j.jnpe.2022.S2.0019

Volume 43 Issue S2

Dec. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(S2): 19-27

Han Xilong, Lu Mingyu, Yang Aixiang, Shao Jianxiong, Li Ning, Han Chengzhi, Tian Dai, Chen Ximeng, Qiu Jiawen. Study on Radiation Field Distribution and Attenuation Rate of Radioisotope Thermophotovoltaic System[J]. Nuclear Power Engineering, 2022, 43(S2): 19-27. doi: 10.13832/j.jnpe.2022.S2.0019

Citation:

Han Xilong, Lu Mingyu, Yang Aixiang, Shao Jianxiong, Li Ning, Han Chengzhi, Tian Dai, Chen Ximeng, Qiu Jiawen. Study on Radiation Field Distribution and Attenuation Rate of Radioisotope Thermophotovoltaic System[J]. Nuclear Power Engineering, 2022, 43(S2): 19-27. doi: 10.13832/j.jnpe.2022.S2.0019

Citation:

Han Xilong, Lu Mingyu, Yang Aixiang, Shao Jianxiong, Li Ning, Han Chengzhi, Tian Dai, Chen Ximeng, Qiu Jiawen. Study on Radiation Field Distribution and Attenuation Rate of Radioisotope Thermophotovoltaic System[J]. Nuclear Power Engineering, 2022, 43(S2): 19-27. doi: 10.13832/j.jnpe.2022.S2.0019

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Study on Radiation Field Distribution and Attenuation Rate of Radioisotope Thermophotovoltaic System

doi: 10.13832/j.jnpe.2022.S2.0019

1.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China
2.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
3.
Beijing Institute of Spacecraft System Engineering, Beijing, 100094, China

Received Date: 2022-08-18
Rev Recd Date: 2022-10-07
Publish Date: 2022-12-31

Abstract

Abstract

For deep space and deep sea exploration missions, the long-period energy supply problem must be solved. Radioisotope thermophotovoltaic (RTPV) cell is one of the important solutions. The research on the performance degradation of RTPV system is the basis of engineering design. The power attenuation of 250 W ²³⁸PuO₂ General-Purpose Heat Source (GPHS) was calculated systematically, and the radiation field distribution inside the thermophotovoltaic system was simulated by Monte Carlo method. Finally, the attenuation rate of RTPV system was obtained by combining relevant foreign experiments. When the cell system has been in service for 20 years, the annual attenuation rate of the system conversion efficiency reduction caused by the thermal power reduction is 0.5%. In the case of oxygen enrichment, the annual attenuation rate of GaSb crystal conversion efficiency caused by neutron irradiation from ²³⁸PuO₂ source is 0.7%. Considering the effects of power attenuation and neutron irradiation, the annual attenuation rate of thermal photovoltaic system is 1.2%.
- Radioisotope thermophotovoltaic (RTPV),
- General-Purpose Heat Source (GPHS),
- Attenuation rate,
- Radiation field

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References(23)

References

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