LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations

C. Grimani; M. Fabi; A. Lobo; I. Mateos; D. Telloni

doi:10.1088/0264-9381/32/3/035001

LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations

C. Grimani
, M. Fabi
, A. Lobo
, I. Mateos
, D. Telloni

University of Urbino Carlo Bo
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Campus UAB
Istituto di Astrofisica e Planetologia Spaziali (IAPS)

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

32 Citations (Scopus)

Résumé

Metal free-floating test masses aboard the future interferometers devoted to gravitational wave detection in space are charged by galactic and solar cosmic rays with energies < 100 MeV/n. This process represents one of the main sources of noise in the lowest frequency band (> 10_?3 Hz) of these experiments. We study here the charging of the LISA Pathfinder (LISA-PF) goldplatinum test masses due to galactic cosmic-ray (GCR) protons and helium nuclei with the Fluka Monte Carlo toolkit. Projections of the energy spectra of GCRs during the LISA-PF operations in 2015 are considered. This work was carried out on the basis of the solar activity level and solar polarity epoch expected for LISA-PF. The effects of GCR short-term variations are evaluated here for the first time. Classical Forbush decreases, GCR variations induced by the Sun rotation, and fluctuations in the LISA-PF frequency bandwidth are discussed.

langue originale	Anglais
Numéro d'article	035001
journal	Classical and Quantum Gravity
Volume	32
Numéro de publication	3
Les DOIs	https://doi.org/10.1088/0264-9381/32/3/035001
état	Publié - 5 févr. 2015
Modification externe	Oui

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10.1088/0264-9381/32/3/035001

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title = "LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations",

abstract = "Metal free-floating test masses aboard the future interferometers devoted to gravitational wave detection in space are charged by galactic and solar cosmic rays with energies < 100 MeV/n. This process represents one of the main sources of noise in the lowest frequency band (> 10?3 Hz) of these experiments. We study here the charging of the LISA Pathfinder (LISA-PF) goldplatinum test masses due to galactic cosmic-ray (GCR) protons and helium nuclei with the Fluka Monte Carlo toolkit. Projections of the energy spectra of GCRs during the LISA-PF operations in 2015 are considered. This work was carried out on the basis of the solar activity level and solar polarity epoch expected for LISA-PF. The effects of GCR short-term variations are evaluated here for the first time. Classical Forbush decreases, GCR variations induced by the Sun rotation, and fluctuations in the LISA-PF frequency bandwidth are discussed.",

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author = "C. Grimani and M. Fabi and A. Lobo and I. Mateos and D. Telloni",

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T1 - LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations

AU - Grimani, C.

AU - Fabi, M.

AU - Lobo, A.

AU - Mateos, I.

AU - Telloni, D.

PY - 2015/2/5

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N2 - Metal free-floating test masses aboard the future interferometers devoted to gravitational wave detection in space are charged by galactic and solar cosmic rays with energies < 100 MeV/n. This process represents one of the main sources of noise in the lowest frequency band (> 10?3 Hz) of these experiments. We study here the charging of the LISA Pathfinder (LISA-PF) goldplatinum test masses due to galactic cosmic-ray (GCR) protons and helium nuclei with the Fluka Monte Carlo toolkit. Projections of the energy spectra of GCRs during the LISA-PF operations in 2015 are considered. This work was carried out on the basis of the solar activity level and solar polarity epoch expected for LISA-PF. The effects of GCR short-term variations are evaluated here for the first time. Classical Forbush decreases, GCR variations induced by the Sun rotation, and fluctuations in the LISA-PF frequency bandwidth are discussed.

AB - Metal free-floating test masses aboard the future interferometers devoted to gravitational wave detection in space are charged by galactic and solar cosmic rays with energies < 100 MeV/n. This process represents one of the main sources of noise in the lowest frequency band (> 10?3 Hz) of these experiments. We study here the charging of the LISA Pathfinder (LISA-PF) goldplatinum test masses due to galactic cosmic-ray (GCR) protons and helium nuclei with the Fluka Monte Carlo toolkit. Projections of the energy spectra of GCRs during the LISA-PF operations in 2015 are considered. This work was carried out on the basis of the solar activity level and solar polarity epoch expected for LISA-PF. The effects of GCR short-term variations are evaluated here for the first time. Classical Forbush decreases, GCR variations induced by the Sun rotation, and fluctuations in the LISA-PF frequency bandwidth are discussed.

KW - cosmic rays

KW - gravitational radiation detectors

KW - interplanetary propagation

KW - solar cycles

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DO - 10.1088/0264-9381/32/3/035001

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JO - Classical and Quantum Gravity

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ER -

LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations

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