Wednesday, June 7, 2017, 2:30 pm — Large Conference Room, Bldg. 535
In recent years liquid xenon time projection chambers (LXeTPC) have proven to be excellent detectors in the searches for neutrino-less double beta (0nbb) decay and dark matter. The next generation Enriched Xenon Observatory (nEXO) will be a ton-scale detector dedicated to the search of 0nbb using Xe-136. Due to its size (>1.5 m drift, 1 m diameter) standard external calibration tools to understand the detector response may not be sufficient. Novel techniques are being explored, among which is the use of lasers for in-situ charge calibration. For this to be successful the transport properties of charge carriers in LXe need to be studied and known accurately. Can they be generated with high fidelity for calibration purposes? What is their drift speed? How much do they diffuse? And most importantly what is their lifetime? I will report on our investigation of these properties conducted here at BNL using laser driven gold photocathodes.
12370 | INT/EXT | Events Calendar
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