Lowering the radioactivity of the photomultiplier tubes for the XENON1T dark matter experiment
Abstract: The low-background, VUV-sensitive 3-inch diameter photomultiplier tube R11410 has been developed by Hamamatsu for dark matter direct detection experiments using liquid xenon as the target material. We present the results from the joint effort between the XENON collaboration and the Hamamatsu company to produce a highly radio-pure photosensor (version R11410-21) for the XENON1T dark matter experiment. After introducing the photosensor and its components, we show the methods and results of the radioactive contamination measurements of the individual materials employed in the photomultiplier production. We then discuss the adopted strategies to reduce the radioactivity of the various PMT versions. Finally, we detail the results from screening 286 tubes with ultra-low background germanium detectors, as well as their implications for the expected electronic and nuclear recoil background of the XENON1T experiment
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
-
Online-Ressource
- Language
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Englisch
- Notes
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The European physical journal. C. - 75 (2015) , 546, ISSN: 1434-6052
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
-
Universität
- (when)
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2021
- Creator
- DOI
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10.1140/epjc/s10052-015-3657-5
- URN
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urn:nbn:de:bsz:25-freidok-2200417
- Rights
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Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
-
14.08.2025, 10:48 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Aprile, Elena
- Schumann, Marc
- Laubenstein, Matthias
- XENON Collaboration, [Study Group]
- Universität
Time of origin
- 2021
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