Muon-induced background in the KATRIN main spectrometer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00503183" target="_blank" >RIV/61389005:_____/19:00503183 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.astropartphys.2019.01.003" target="_blank" >https://doi.org/10.1016/j.astropartphys.2019.01.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.astropartphys.2019.01.003" target="_blank" >10.1016/j.astropartphys.2019.01.003</a>
Alternative languages
Result language
angličtina
Original language name
Muon-induced background in the KATRIN main spectrometer
Original language description
The KArlsruhe TRItium Neutrino (KATRIN) experiment aims to make a model-independent determination of the effective electron antineutrino mass with a sensitivity of 0.2 eV/c(2). It investigates the kinematics of beta-particles from tritium beta-decay close to the endpoint of the energy spectrum. Because the KATRIN main spectrometer (MS) is located above ground, muon-induced backgrounds are of particular concern. Coincidence measurements with the MS and a scintillator-based muon detector system confirmed the model of secondary electron production by cosmic-ray muons inside the MS. Correlation measurements with the same setup showed that about 12% of secondary electrons emitted from the inner surface are induced by cosmic-ray muons, with approximately one secondary electron produced for every 17 muon crossings. However, the magnetic and electrostatic shielding of the MS is able to efficiently suppress these electrons, and we find that muons are responsible for less than 17% (90% confidence level) of the overall MS background.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astroparticle Physics
ISSN
0927-6505
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
3
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
40-49
UT code for WoS article
000459520800003
EID of the result in the Scopus database
2-s2.0-85059838543