Speaker
Michael Bowles
(SDSM&T Physics Dept)
Description
High-sensitivity, low-threshold material surface screening is necessary to meet the stringent radiopurity requirements for rare-event searches. The BetaCage is a proposed ultra-low-background time projection chamber (TPC) designed to screen alphas and low-energy betas emitted from material surfaces at trace levels, providing a transformative effect on isotopic assay efforts. I will describe the TPC design, the expected backgrounds and mitigation techniques, the estimated alpha and beta sensitivity, and the commissioning of a prototype TPC currently deployed at SDSM&T.
Authors
Raymond Bunker
(Pacific Northwest National Laboratory)
Sunil Golwala
(Caltech)
Richard Schnee
(SDSM&T)
Boqian Wang
Darren Grant
(University of Alberta)
Michael Bowles
(SDSM&T Physics Dept)
Eric Miller
(SDSM&T)
