Search: onr:"swepub:oai:DiVA.org:su-198396" >
Improved quality te...
Improved quality tests of R11410-21 photomultiplier tubes for the XENONnT experiment
-
- Antochi, Vasile C. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Baudis, L. (author)
-
Bollig, J. (author)
-
show more...
-
Brown, A. (author)
-
Budnik, R. (author)
-
Cichon, D. (author)
-
- Conrad, Jan (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
- Ferella, Alfredo D. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Galloway, M. (author)
-
Hoetzsch, L. (author)
-
Kazama, S. (author)
-
Koltman, G. (author)
-
Landsman, H. (author)
-
Lindner, M. (author)
-
- Mahlstedt, Jörn (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Marrodán Undagoitia, T. (author)
-
- Pelssers, Bart (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Volta, G. (author)
-
Wack, O. (author)
-
Wulf, J. (author)
-
show less...
-
(creator_code:org_t)
- 2021
- 2021
- English.
-
In: Journal of Instrumentation. - 1748-0221. ; 16:8
- Related links:
-
https://doi.org/10.1...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Photomultiplier tubes (PMTs) are often used in low-background particle physics experiments, which rely on an excellent response to single-photon signals and stable long-term operation. In particular, the Hamamatsu R11410 model is the light sensor of choice for liquid xenon dark matter experiments, including XENONnT. The same PMT model was also used for the predecessor, XENON1T, where issues affecting its long-term operation were observed. Here, we report on an improved PMT testing procedure which ensures optimal performance in XENONnT. Using both new and upgraded facilities, we tested 368 new PMTs in a cryogenic xenon environment. We developed new tests targeted at the detection of light emission and the degradation of the PMT vacuum through small leaks, which can lead to spurious signals known as afterpulses, both of which were observed in XENON1T. We exclude the use of 26 of the 368 tested PMTs and categorise the remainder according to their performance. Given that we have improved the testing procedure, yet we rejected fewer PMTs, we expect significantly better PMT performance in XENONnT.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Photon detectors for UV
- visible and IR photons (vacuum)
- visible and IR photons (vacuum) (photomultipliers
- HPDs
- others)
- Dark Matter detectors (WIMPs
- axions
- etc
- )
- Noble liquid detectors (scintillation
- ionization
- double-phase)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Antochi, Vasile ...
-
Baudis, L.
-
Bollig, J.
-
Brown, A.
-
Budnik, R.
-
Cichon, D.
-
show more...
-
Conrad, Jan
-
Ferella, Alfredo ...
-
Galloway, M.
-
Hoetzsch, L.
-
Kazama, S.
-
Koltman, G.
-
Landsman, H.
-
Lindner, M.
-
Mahlstedt, Jörn
-
Marrodán Undagoi ...
-
Pelssers, Bart
-
Volta, G.
-
Wack, O.
-
Wulf, J.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
- Articles in the publication
-
Journal of Instr ...
- By the university
-
Stockholm University