Nuclear Engineering and Technology

  • 제54권9호
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  • Pages.3415-3421
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  • 2022
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Impact of geometrical parameters on SGEMP responses in cylinder model

  • 투고 : 2021.12.05
  • 심사 : 2022.04.25
  • 발행 : 2022.09.25
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초록

This paper is aimed to find out the impact of the geometrical parameters, mainly the radius and the height of a cylinder, on the SGEMP response including the famous scaling law in the classical cylinder model using a homemade PIC code UNIPIC-3D. We computed the electric fields at the center and at the edge on the emission head face with different radii and heights under normal X-rays incidence. The results show that the electric field will increase with the radius but decrease with the height. We analyze the scaling law that links the electric field product and fluence product, and whereafter an irreconcilable contradiction raises when the radius is changeable, which limits the application range of the scaling law. Moreover, the field-height-radius relation is found and described by a combination of logarithmic and minus one-quarter numerical fitting law firstly. Particle and magnetic field distributions are used to explain all the behaviors of the fields reasonably. All the findings will assist the evaluation of SGEMP response in spacecraft protection.

키워드

과제정보

This work was supported by the National Key Research and Development Program of China under Grant No. 2020YFA0709800 and the National Natural Science Foundation of China under Grant No. 12105227.

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