Possibilities for Measurement and Compensation of Stray DC Electric Fields Acting on Drag-Free Test Masses

Details Possibilities for Measurement and Compensation of Stray DC Electric Fields Acting on Drag-Free Test Masses Possibilities for Measurement and Compensation of Stray DC Electric Fields Acting on Drag-Free Test Masses

2003-09-13

arxiv.org/abs/gr-qc/0309067v1

Adv.SpaceRes.39:213-218,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

To be published in Advances in Space Research, COSPAR 2002 conference proceedings (6 pages, 3 figures)

Scientific paper

10.1016/j.asr.2006.03.045

DC electric fields can combine with test mass charging and thermal dielectric voltage noise to create significant force noise acting on the drag-free test masses in the LISA (Laser Interferometer Space Antenna) gravitational wave mission. This paper proposes a simple technique to measure and compensate average stray DC potentials at the mV level, yielding substantial reduction in this source of force noise. We discuss the attainable resolution for both flight and ground based experiments.

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