Bridging the gap between Monte Carlo simulations and measurements of the LISA Pathfinder test-mass charging for LISA

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Volume 666 (October 2022)

A&A, 666 (2022) A38

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Table 1

LPF prelaunch minimum (top panel) and maximum (middle panel) cosmic-ray energy spectrum predictions.

Minimum cosmic-ray flux predictions for LPF (φ = 800 MV c⁻¹)

Particle	A	b	α	β

p	18 000	1.54	3.67	0.88
He	850	0.91	3.60	0.85

Maximum cosmic-ray flux predictions for LPF (φ = 350 MV c⁻¹)

Particle	A	b	α	β

p	18 000	0.88	3.68	0.89
He	850	0.7	3.23	0.48

Cosmic-ray flux during the LPF mission operations in April 2016 (φ = 468 MV c⁻¹)

Particle	A	b	α	β

p	18 000	1.25	3.66	0.92
He	850	0.74	3.68	0.85

Notes. The parameterizations were carried out according to the function F(E) = A(E + b)^−αE^ß particles (m² sr s GeV n⁻¹)⁻¹. Estimates of the cosmic-ray energy spectra in April 2016, when the TM charging measurements were carried out with LPF, are reported in the bottom panel.

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