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  Measuring the Galactic Cosmic Ray Flux with the LISA Pathfinder Radiation Monitor

Armano, M., Audley, H., Baird, J., Binetruy, P., Born, M., Bortoluzzi, D., et al. (2018). Measuring the Galactic Cosmic Ray Flux with the LISA Pathfinder Radiation Monitor. Astroparticle Physics, 98, 28-37. doi:10.1016/j.astropartphys.2018.01.006.

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Datensatz-Permalink: http://hdl.handle.net/21.11116/0000-0000-8067-B Versions-Permalink: http://hdl.handle.net/21.11116/0000-0002-E804-4
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Armano, M., Autor
Audley, H.1, Autor
Baird, J., Autor
Binetruy, P.1, Autor
Born, M.2, Autor              
Bortoluzzi, D., Autor
Castelli, E., Autor
Cavalleri, A., Autor
Cesarini, A., Autor
Cruise, M., Autor
Danzmann, K.2, Autor              
de Deus Silva, M. , Autor
Diepholz, I.2, Autor              
Dixon, G., Autor
Dolesi, R., Autor
Ferraioli, L., Autor
Ferroni, V., Autor
Finetti, N., Autor
Fitzsimons, E. D., Autor
Freschi, M., Autor
Gesa, L., AutorGibert, F., AutorGiardini, D., AutorGiusteri, R., AutorGrimani, C., AutorGrzymisch, J., AutorHarrison, I., AutorHeinzel, G.2, Autor              Hewitson, M.3, Autor              Hollington, D, AutorHoyland, D, AutorHueller, M., AutorInchauspe, H., AutorJennrich, O., AutorJetzer, P., AutorKarnesis, N.1, AutorKaune, B.2, Autor              Korsakova, N., AutorKillow, C. J., AutorLobo, J. A., AutorLloro, I., AutorLiu, L., AutorLopez-Zaragoza, J. P., AutorMaarschalkerweerd, R., AutorMance, D., AutorMeshskar, N., AutorMartin, V., AutorMartin-Polo, L., AutorMartino, J., AutorMartin-Porqueras, F., AutorMateos, I., AutorMcNamara, P. W., AutorMendes, J., AutorMendes, L., AutorNofrarias, M., AutorPaczkowski, S.2, Autor              Perreur-Lloyd, M., AutorPetiteau, A., AutorPivato, P., AutorPlagnol, E., AutorRamos-Castro, J., AutorReiche, J.2, Autor              Robertson, D. I., AutorRivas, F., AutorRussano, G., AutorSlutsky, J., AutorSopuerta, C. F., AutorSumner, T., AutorTexier, D., AutorThorpe, J. I., AutorVetrugno, D., AutorVitale, S., AutorWanner, G.2, Autor              Ward, H., AutorWass, P., AutorWeber, W. J., AutorWissel, L.1, AutorWittchen, A., AutorZweifel, P., Autor mehr..
Affiliations:
1AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24009              
2Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
3Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Schlagwörter: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Zusammenfassung: Test mass charging caused by cosmic rays will be a significant source of acceleration noise for space-based gravitational wave detectors like LISA. Operating between December 2015 and July 2017, the technology demonstration mission LISA Pathfinder included a bespoke monitor to help characterise the relationship between test mass charging and the local radiation environment. The radiation monitor made in situ measurements of the cosmic ray flux while also providing information about its energy spectrum. We describe the monitor and present measurements which show a gradual 40% increase in count rate coinciding with the declining phase of the solar cycle. Modulations of up to 10% were also observed with periods of 13 and 26 days that are associated with co-rotating interaction regions and heliospheric current sheet crossings. These variations in the flux above the monitor detection threshold (approximately 70 MeV) are shown to be coherent with measurements made by the IREM monitor on-board the Earth orbiting INTEGRAL spacecraft. Finally we use the measured deposited energy spectra, in combination with a GEANT4 model, to estimate the galactic cosmic ray differential energy spectrum over the course of the mission.

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 Datum: 2017-11-202018-01-122018
 Publikationsstatus: Im Druck veröffentlicht
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 Identifikatoren: arXiv: 1711.07427
DOI: 10.1016/j.astropartphys.2018.01.006
URI: http://arxiv.org/abs/1711.07427
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Titel: Astroparticle Physics
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 98 Artikelnummer: - Start- / Endseite: 28 - 37 Identifikator: -