Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles

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dc.creatorBurgos, S.
dc.creatorForbes, J.
dc.creatorGhag, C.
dc.creatorGold, M.
dc.creatorKudryavtsev, V. A.
dc.creatorLawson, T. B.
dc.creatorLoomba, D.
dc.creatorMajewski, P.
dc.creatorMcMillan, J. E.
dc.creatorMuna, D.
dc.creatorMurphy, A. StJ.
dc.creatorNicklin, G. G.
dc.creatorPaling, S. M.
dc.creatorPetkov, A.
dc.creatorPlank, S. J. S.
dc.creatorRobinson, M.
dc.creatorSanghi, N.
dc.creatorSmith, N. J. T.
dc.creatorSnowden-Ifft, D. P.
dc.creatorSpooner, N. J. C.
dc.creatorSumner, T. J.
dc.creatorTurk, J.
dc.creatorTziaferi, T.
dc.date2007-07-12
dc.date.accessioned2026-07-07T10:56:41Z
dc.date.available2026-07-07T10:56:41Z
dc.descriptionFirst results are presented from an analysis of data from the DRIFT-IIa and DRIFT-IIb directional dark matter detectors at Boulby Mine in which alpha particle tracks were reconstructed and used to characterise detector performance--an important step towards optimising directional technology. The drift velocity in DRIFT-IIa was [59.3 +/- 0.2 (stat) +/- 7.5 (sys)] m/s based on an analysis of naturally-occurring alpha-emitting background. The drift velocity in DRIFT-IIb was [57 +/- 1 (stat) +/- 3 (sys)] m/s determined by the analysis of alpha particle tracks from a Po-210 source. 3D range reconstruction and energy spectra were used to identify alpha particles from the decay of Rn-222, Po-218, Rn-220 and Po-216. This study found that (22 +/- 2)% of Po-218 progeny (from Rn-222 decay) are produced with no net charge in 40 Torr CS2. For Po-216 progeny (from Rn-220 decay) the uncharged fraction is (100 +0 -35)%.
dc.description27 pages, 12 figures, 5 tables. Submitted to Nuclear Instruments and Methods in Physics Research, Section A. Subj-class: Instrumentation and Detectors
dc.identifierhttps://arxiv.org/abs/0707.1758
dc.identifierhttp://arxiv.org/abs/0707.1758
dc.identifierNucl.Instrum.Meth.A584:114-128,2008
dc.identifierdoi:10.1016/j.nima.2007.10.013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186496
dc.subjectInstrumentation and Detectors
dc.titleTrack Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles
dc.typetext

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