C Grimani et al 2005 Class. Quantum Grav. 22 S327 doi:10.1088/0264-9381/22/10/025
C Grimani1, H Vocca2, G Bagni1, L Marconi3, R Stanga4, F Vetrano1, A Viceré1, P Amico2, L Gammaitoni2 and F Marchesoni5
Show affiliationsSolar energetic particles and galactic cosmic rays with energies larger than 100 MeV cause progressive charging of the LISA experiment test masses. Consequently, Coulomb forces occur between the test masses and the surrounding conducting surfaces generating spurious signals that might be mistaken for gravitational wave signals. We have parametrized the energy spectra of galactic cosmic-ray nuclei and electrons near the LISA orbit in order to evaluate their role in the test-mass charging relative to the most abundant proton component. This work has been carried out using the FLUKA Monte Carlo program.
04.80.-y Experimental studies of gravity
96.50.sb Composition, energy spectra and interactions
98.70.Sa Cosmic rays (including sources, origin, acceleration, and interactions)
Issue 10 (21 May 2005)
Received 28 October 2004, in final form 6 January 2005
Published 26 April 2005
C Grimani et al 2005 Class. Quantum Grav. 22 S327
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