C Grimani et al 2004 Class. Quantum Grav. 21 S629 doi:10.1088/0264-9381/21/5/035
C Grimani1, H Vocca2, M Barone1, R Stanga3, F Vetrano1, A Viceré1, P Amico2, L Bosi2, F Marchesoni4, M Punturo5 and F Travasso2
Show affiliationsCosmic-ray particles traverse the LISA apparatus charging the proof masses. This process causes spurious Coulomb forces between the test masses and the surrounding conducting surfaces mimicking gravitational wave signals. Approximately 13 g cm−2 of matter overlies the proof masses. The nucleonic component of cosmic rays (about 99% of the total) below 100 MeV/n stops inside the spacecraft without reaching the masses. It is of major importance to determine the primary and solar cosmic-ray particle fluxes above this energy near the LISA orbit in order to predict the effect on the apparatus.
96.50.sb Composition, energy spectra and interactions
Issue 5 (7 March 2004)
Received 29 August 2003
Published 9 February 2004
C Grimani et al 2004 Class. Quantum Grav. 21 S629
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