Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars
In Situ Optical Calibration of MiniCLEAN
Presented by Jui-Jen Wang, UNM
the MiniCLEAN dark matter experiment will exploit a single-phase liquid-argon detector instrumented with 92 photomultiplier tubes placed in the cryogen temperature with 4-pi coverage of a 500 kg (150 kg) target (fiducial) mass. The detector design strategy emphasizes scalability to target masses of order 10 tons or more. The detector is designed also for a liquid- neon target that allows for an independent verification of signal and background and a test of the expected dependence of the WIMP-nucleus interaction rate. For MiniCLEAN, PMT stability and calibration are essential. The optical calibration will be able monitor the PMT stability and maintain the calibration. In MiniCLEAN, we use a Light-Emitting Diode(LED)- based light injection system to provide single photons for calibration, the calibration can be performed in near real-time, providing a continuous monitor at the condition of the detector. In this talk, I will present what we have accomplished this past year on-site and the analysis topic for current and future data.
2:00 pm, Tuesday, April 7, 2015
PAIS-2540, PAIS
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