Poster
Characterization of the LISA Fiber Optic Harness: Modeling the UV Light Transmission in the LISA CMD
The LISA fiber optic harness (FOH) transmits UV LED light onto the LISA test masses to release built up charge from the space environment. A model of the UV light transmission through the FOH and optical feedthrough (OFT) has been developed as an input to an end-to-end simulation of the photoelectric discharging process.
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LISA Test Mass Glitches: Maximum Likelihood Detection & Subtraction in TDI Data
LISA Pathfinder observed several unexpected test mass acceleration events during its flight. These “glitches” have been attributed to sudden releases of trapped gas from within the electrode housings. We examine the effect of similar glitches on LISA’s TDI outputs, and demonstrate a maximum likelihood technique for removing them in post-processing.
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End-to-End Multiphysics Simulation of PhotoelectricCharge Management: Application to Free-falling Test Masses
We present a simulation for the charge management process in its entirety using the COMSOL Multiphysics modeling software. We recover the UV absorption map inside GRS, the quantum yield (QY), and work functions of both test mass and electrode housing surfaces through an MCMC fit of the model and empirical AY results.
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Laser communication, timing transfer, rangingand PAT in the CLICK B/C mission
LISA's laser link requires Pointing, Acquisition and Tracking (PAT) and deploys laser data communication, timing transfer and ranging. CLICK (CubeSat Laser Infrared CrosslinK) is an independent demonstrator for these concepts.
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