Neves, F;
Akimov, DY;
Arajo, M;
Barnes, J;
Belov, A;
Burenkov, A;
Chepel, V;
... Walker, RJ; + view all
(2011)
ZE3RA: The ZEPLIN-III Reduction and Analysis package.
Journal of Instrumentation
, 6
(11)
10.1088/1748-0221/6/11/P11004.
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Abstract
ZE3RA is the software package responsible for processing the raw data from the ZEPLIN-III dark matter experiment and its reduction into a set of parameters used in all subsequent analyses. The detector is a liquid xenon time projection chamber with scintillation and electroluminescence signals read out by an array of 31 photomultipliers. The dual range 62-channel data stream is optimised for the detection of scintillation pulses down to a single photoelectron and of ionisation signals as small as those produced by single electrons. We discuss in particular several strategies related to data filtering, pulse finding and pulse clustering which are tuned using calibration data to recover the best electron/nuclear recoil discrimination near the detection threshold, where most dark matter elastic scattering signatures are expected. The software was designed assuming only minimal knowledge of the physics underlying the detection principle, allowing an unbiased analysis of the experimental results and easy extension to other detectors with similar requirements. ©2011 IOP Publishing Ltd and SISSA.
| Type: | Article |
|---|---|
| Title: | ZE3RA: The ZEPLIN-III Reduction and Analysis package |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1748-0221/6/11/P11004 |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | ZEPLIN-III, liquid xenon detectors, dark matter, signal analyses, data reduction |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1352128 |
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