We report measurements of the charged daughter fraction of Po-218 as a result of the Rn-222 alpha decay, and the mobility of Po-218(+) ions, using radon-polonium coincidences from the U-238 chain identified in 532 live-days of DarkSide-50 WIMP-search data. The fraction of Po-218 that is charged is found to be 0.37 +/- 0.03 and the mobility of Po-218(+) is (8.6 +/- 0.1) x 10(-4) cm(2)/vs.

Measurement of the ion fraction and mobility of 218Po produced in 222Rn decays in liquid argon

Gulino, M.;
2019-01-01

Abstract

We report measurements of the charged daughter fraction of Po-218 as a result of the Rn-222 alpha decay, and the mobility of Po-218(+) ions, using radon-polonium coincidences from the U-238 chain identified in 532 live-days of DarkSide-50 WIMP-search data. The fraction of Po-218 that is charged is found to be 0.37 +/- 0.03 and the mobility of Po-218(+) is (8.6 +/- 0.1) x 10(-4) cm(2)/vs.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11387/140667
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