The estimate of the total electron yield is fundamental for our understanding of the test-mass charging associated with cosmic rays in the Laser Interferometer Space Antenna (LISA) Pathfinder mission and in the forthcoming gravitational wave observatory LISA. To unveil the role of low energy electrons in this process owing to galactic and solar energetic particle events, in this work we study the interaction of keV and sub-keV electrons with a gold slab using a mixed Monte Carlo (MC) and ab-initio framework. We determine the energy spectrum of the electrons emerging from such a gold slab hit by a primary electron beam by considering the relevant energy loss mechanisms as well as the elastic scattering events. We also show that our results are consistent with experimental data and MC simulations carried out with the GEANT4-DNA toolkit.

The role of low-energy electrons in the charging process of LISA test masses / Taioli, Simone; Dapor, Maurizio; Dimiccoli, Francesco; Fabi, Michele; Ferroni, Valerio; Grimani, Catia; Villani, Mattia; Weber, William Joseph. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 40:7(2023), p. 075001. [10.1088/1361-6382/acbadd]

The role of low-energy electrons in the charging process of LISA test masses

Simone Taioli;Maurizio Dapor;Francesco Dimiccoli;valerio ferroni;William Joseph Weber
2023-01-01

Abstract

The estimate of the total electron yield is fundamental for our understanding of the test-mass charging associated with cosmic rays in the Laser Interferometer Space Antenna (LISA) Pathfinder mission and in the forthcoming gravitational wave observatory LISA. To unveil the role of low energy electrons in this process owing to galactic and solar energetic particle events, in this work we study the interaction of keV and sub-keV electrons with a gold slab using a mixed Monte Carlo (MC) and ab-initio framework. We determine the energy spectrum of the electrons emerging from such a gold slab hit by a primary electron beam by considering the relevant energy loss mechanisms as well as the elastic scattering events. We also show that our results are consistent with experimental data and MC simulations carried out with the GEANT4-DNA toolkit.
2023
7
Taioli, Simone; Dapor, Maurizio; Dimiccoli, Francesco; Fabi, Michele; Ferroni, Valerio; Grimani, Catia; Villani, Mattia; Weber, William Joseph...espandi
The role of low-energy electrons in the charging process of LISA test masses / Taioli, Simone; Dapor, Maurizio; Dimiccoli, Francesco; Fabi, Michele; Ferroni, Valerio; Grimani, Catia; Villani, Mattia; Weber, William Joseph. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 40:7(2023), p. 075001. [10.1088/1361-6382/acbadd]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/372429
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