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  Charge-induced force-noise on free-falling test masses: results from LISA Pathfinder

Armano, M., Audley, H., Auger, G., Baird, J. T., Binetruy, P., Born, M., et al. (2017). Charge-induced force-noise on free-falling test masses: results from LISA Pathfinder. Physical Review Letters, 118: 171101. doi:10.1103/PhysRevLett.118.171101.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-7EDB-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-2B76-1
Genre: Journal Article

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Armano, M., Author
Audley, H.1, Author              
Auger, G., Author
Baird, J. T., Author
Binetruy, P., Author
Born, M.1, Author              
Bortoluzzi, D., Author
Brandt, N., Author
Bursi, A., Author
Caleno, M., Author
Cavalleri, A., Author
Cesarini, A., Author
Cruise, M., Author
Danzmann, K.1, Author              
de Deus Silva, M. , Author
Diepholz, I.1, Author              
Dolesi, R., Author
Dunbar, N., Author
Ferraioli, L., Author
Ferroni, V., Author
Fitzsimons, E. D., AuthorFlatscher, R., AuthorFreschi, M., AuthorGallegos, J., AuthorMarirrodriga, C. García, AuthorGerndt, R., AuthorGesa, L., AuthorGibert, F., AuthorGiardini, D., AuthorGiusteri, R., AuthorGrimani, C., AuthorGrzymisch, J., AuthorHarrison, I., AuthorHeinzel, G.1, Author              Hewitson, M.2, Author              Hollington, D., AuthorHueller, M., AuthorHuesler, J., AuthorInchauspé, H., AuthorJennrich, O., AuthorJetzer, P., AuthorJohlander, B., AuthorKarnesis, N.3, AuthorKaune, B.3, AuthorKillow, C. J., AuthorKorsakova, N., AuthorLloro, I., AuthorLiu, L., AuthorMaarschalkerweerd, R., AuthorMadden, S., AuthorMance, D., AuthorMartín, V., AuthorMartin-Polo, L., AuthorMartino, J., AuthorMartin-Porqueras, F., AuthorMateos, I., AuthorMcNamara, P. W., AuthorMendes, J., AuthorMendes, L., AuthorMoroni, A., AuthorNofrarias, M., AuthorPaczkowski, S.3, AuthorPerreur-Lloyd, M., AuthorPetiteau, A., AuthorPivato, P., AuthorPlagnol, E., AuthorPrat, P., AuthorRagnit, U., AuthorRamos-Castro, J., AuthorReiche, J.1, Author              Perez, J. A. Romera, AuthorRobertson, D. I., AuthorRozemeijer, H., AuthorRivas, F., AuthorRussano, G., AuthorSarra, P., AuthorSchleicher, A., AuthorSlutsky, J., AuthorSopuerta, C., AuthorSumner, T. J., AuthorTexier, D., AuthorThorpe, J. I., AuthorTrenkel, C., AuthorVetrugno, D., AuthorVitale, S., AuthorWanner, G.1, Author              Ward, H., AuthorWass, P. J., AuthorWealthy, D., AuthorWeber, W. J., AuthorWittchen, A.3, AuthorZanoni, C., AuthorZiegler, T., AuthorZweifel, P., Author more..
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              
3AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24009              

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Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM
 Abstract: We report on electrostatic measurements made on board the European Space Agency mission LISA Pathfinder. Detailed measurements of the charge-induced electrostatic forces exerted on free-falling test masses (TMs) inside the capacitive gravitational reference sensor are the first made in a relevant environment for a space-based gravitational wave detector. Employing a combination of charge control and electric-field compensation, we show that the level of charge-induced acceleration noise on a single TM can be maintained at a level close to 1.0 fm/s^2/sqrt(Hz) across the 0.1-100 mHz frequency band that is crucial to an observatory such as LISA. Using dedicated measurements that detect these effects in the differential acceleration between the two test masses, we resolve the stochastic nature of the TM charge build up due to interplanetary cosmic rays and the TM charge-to-force coupling through stray electric fields in the sensor. All our measurements are in good agreement with predictions based on a relatively simple electrostatic model of the LISA Pathfinder instrument.

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 Dates: 2017-02-152017
 Publication Status: Published in print
 Pages: 9 Pages, 3 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1702.04633
URI: http://arxiv.org/abs/1702.04633
DOI: 10.1103/PhysRevLett.118.171101
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 118 Sequence Number: 171101 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1