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The Charge Management System for LISA and LISA Pathfinder

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Title: The Charge Management System for LISA and LISA Pathfinder
Authors: Hollington, Daniel
Item Type: Thesis or dissertation
Abstract: The test masses at the heart of the Laser Interferometer Space Antenna (LISA) and LISA: Pathfinder experiments will experience charging caused by incident ionising radiation. This thesis describes work carried out in developing, testing and understanding the performance of the hardware used to characterise and counteract this test mass charging. Work will be presented that describes the simulation and testing of a radiation monitor to be flown on board Pathfinder. The Charge Management System will then be introduced and the results from testing at the Trento torsion pendulum facility discussed. Several measurements of individual properties that affect discharging are made and these are then incorporated into simulations of the discharging system as a whole. Finally, initial studies are conducted into the suitability of UV-LEDs as the discharging light source for LISA, with particular focus on their spectral stability.
Issue Date: 2011
Date Awarded: Nov-2011
URI: http://hdl.handle.net/10044/1/9083
DOI: https://doi.org/10.25560/9083
Supervisor: Sumner, Timothy
Author: Hollington, Daniel
Department: Physics
Publisher: Imperial College London
Qualification Level: Doctoral
Qualification Name: Doctor of Philosophy (PhD)
Appears in Collections:Physics PhD theses



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