Abstract
We studied the application of statistical reconstruction algorithms, namely maximum likelihood and least squares methods, to the problem of event reconstruction in a dual phase liquid xenon detector. An iterative method was developed for in-situ reconstruction of the PMT light response functions from calibration data taken with an uncollimated gamma-ray source. Using the techniques described, the performance of the ZEPLIN-III dark matter detector was studied for 122 keV gamma-rays. For the inner part of the detector (R <100 mm), spatial resolutions of 13 mm and 1.6 mm FWHM were measured in the horizontal plane for primary and secondary scintillation, respectively. An energy resolution of 8.1% FWHM was achieved at that energy. The possibility of using this technique for improving performance and reducing cost of scintillation cameras for medical applications is currently under study.
| Original language | English |
|---|---|
| Pages (from-to) | 3286-3293 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Nuclear Science |
| Volume | 59 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2012 |
Keywords / Materials (for Non-textual outputs)
- Dark matter
- dual phase detectors
- liquid xenon
- maximum likelihood
- position reconstruction
- scintillation camera
- weighted least squares
- weakly interacting massive particles (WIMPs)
- ZEPLIN-III
- DARK-MATTER
- CAMERAS
- MAXIMUM
- STATISTICS
Fingerprint
Dive into the research topics of 'Position Reconstruction in a Dual Phase Xenon Scintillation Detector'. Together they form a unique fingerprint.Projects
- 3 Finished
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Bridging for Direct Dark matter Searches
Murphy, A. (Principal Investigator)
1/05/12 → 31/12/12
Project: Research
-
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3 Month Extension to Zeplin III
Murphy, A. (Principal Investigator)
1/10/09 → 31/10/10
Project: Research
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