Physics – Instrumentation and Detectors
Scientific paper
2007-07-12
Nucl.Instrum.Meth.A584:114-128,2008
Physics
Instrumentation and Detectors
27 pages, 12 figures, 5 tables. Submitted to Nuclear Instruments and Methods in Physics Research, Section A. Subj-class: Instr
Scientific paper
10.1016/j.nima.2007.10.013
First 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)%.
Burgos Sylvestre
Forbes Jeffrey
Ghag Chamkaur
Gold Michael
Kudryavtsev Vitaly A.
No associations
LandOfFree
Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Track Reconstruction and Performance of DRIFT Directional Dark Matter Detectors using Alpha Particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-160990