Electron and gamma background in CRESST detectors
The CRESST experiment monitors 300 g CaWO4 crystals as targets for particle interactions in an ultra low background environment. In this paper, we analyze the background spectra that are recorded by three detectors over many weeks of data taking. Understanding these spectra is mandatory if one wants...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1826286923473223680 |
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| author | Lang, R Angloher, G Bauer, M Bavykina, I Bento, A Brown, A Bucci, C Ciemniak, C Coppi, C Deuter, G von Feilitzsch, F Hauff, D Henry, S Huff, P Imber, J Ingleby, S Isaila, C Jochum, J Kiefer, M Kimmerle, M Kraus, H Lanfranchi, J Majorovits, B Malek, M McGowan, R |
| author_facet | Lang, R Angloher, G Bauer, M Bavykina, I Bento, A Brown, A Bucci, C Ciemniak, C Coppi, C Deuter, G von Feilitzsch, F Hauff, D Henry, S Huff, P Imber, J Ingleby, S Isaila, C Jochum, J Kiefer, M Kimmerle, M Kraus, H Lanfranchi, J Majorovits, B Malek, M McGowan, R |
| author_sort | Lang, R |
| collection | OXFORD |
| description | The CRESST experiment monitors 300 g CaWO4 crystals as targets for particle interactions in an ultra low background environment. In this paper, we analyze the background spectra that are recorded by three detectors over many weeks of data taking. Understanding these spectra is mandatory if one wants to further reduce the background level, and allows us to cross-check the calibration of the detectors. We identify a variety of sources, such as intrinsic contaminations due to primordial radioisotopes and cosmogenic activation of the target material. In particular, we detect a 3.6 keV X-ray line from the decay of 41Ca with an activity of (26 ± 4) μ Bq, corresponding to a ratio 41 Ca / 40 Ca = (2.2 ± 0.3) × 10- 16. © 2009 Elsevier B.V. All rights reserved. |
| first_indexed | 2024-03-07T01:50:56Z |
| format | Journal article |
| id | oxford-uuid:9a0f6d1e-f179-4485-aea5-bc746ddc6dff |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:50:56Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:9a0f6d1e-f179-4485-aea5-bc746ddc6dff2022-03-27T00:18:50ZElectron and gamma background in CRESST detectorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9a0f6d1e-f179-4485-aea5-bc746ddc6dffEnglishSymplectic Elements at Oxford2010Lang, RAngloher, GBauer, MBavykina, IBento, ABrown, ABucci, CCiemniak, CCoppi, CDeuter, Gvon Feilitzsch, FHauff, DHenry, SHuff, PImber, JIngleby, SIsaila, CJochum, JKiefer, MKimmerle, MKraus, HLanfranchi, JMajorovits, BMalek, MMcGowan, RThe CRESST experiment monitors 300 g CaWO4 crystals as targets for particle interactions in an ultra low background environment. In this paper, we analyze the background spectra that are recorded by three detectors over many weeks of data taking. Understanding these spectra is mandatory if one wants to further reduce the background level, and allows us to cross-check the calibration of the detectors. We identify a variety of sources, such as intrinsic contaminations due to primordial radioisotopes and cosmogenic activation of the target material. In particular, we detect a 3.6 keV X-ray line from the decay of 41Ca with an activity of (26 ± 4) μ Bq, corresponding to a ratio 41 Ca / 40 Ca = (2.2 ± 0.3) × 10- 16. © 2009 Elsevier B.V. All rights reserved. |
| spellingShingle | Lang, R Angloher, G Bauer, M Bavykina, I Bento, A Brown, A Bucci, C Ciemniak, C Coppi, C Deuter, G von Feilitzsch, F Hauff, D Henry, S Huff, P Imber, J Ingleby, S Isaila, C Jochum, J Kiefer, M Kimmerle, M Kraus, H Lanfranchi, J Majorovits, B Malek, M McGowan, R Electron and gamma background in CRESST detectors |
| title | Electron and gamma background in CRESST detectors |
| title_full | Electron and gamma background in CRESST detectors |
| title_fullStr | Electron and gamma background in CRESST detectors |
| title_full_unstemmed | Electron and gamma background in CRESST detectors |
| title_short | Electron and gamma background in CRESST detectors |
| title_sort | electron and gamma background in cresst detectors |
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