Published April 21, 2002
| Version v1
Journal article
Gamma-ray flux in the Frejus underground laboratory measured with NaI detector
Creators
- Ohsumi, H.
- Gurriaran, R.
- Hubert, Ph.
- Arnold, R.
- Augier, C.
- Baker, J.
- Barabash, A.
- Bing, O.
- Brudanin, V.
- Caffrey, A.J.
- Campagne, J.E.
- Caurier, E.
- Dassie, D.
- Egorov, V.
- Errahmane, K.
- Eschbach, R.
- Filipova, T.
- Guyonnet, J.L.
- Hubert, F.
- Jollet, C.
- Jullian, S.
- Kisel, I.
- Klimenko, A.
- Kochetov, O.
- Kornoukhov, V.N.
- Kovalenko, V.
- Kuzichev, V.
- Lalanne, D.
- Laplanche, F.
- Leccia, F.
- Linck, I.
- Longuemare, C.
- Marquet, Ch.
- Mauger, F.
- Nicholson, H.W.
- Nikolic-Audit, I.
- Piquemal, F.
- Reyss, J.L.
- Sarazin, X.
- Smolnikov, A.
- Stekl, I.
- Suhonen, J.
- Sutton, C.S.
- Szklarz, G.
- Timkin, V.
- Tretyak, V.
- Umatov, V.
- Vala, L.
- Vanyushin, I.
- Vareille, A.
- Vasiliev, V.
- Vasiliev, S.
- Vorobel, V.
- Vylov, Ts.
Description
The γ-ray flux in the Frejus underground laboratory has been studied using an NaI detector surrounded by different diagnostic shields. Below 4 MeV, the spectrum is dominated by radioactivities in the surrounding materials and rocks. Between 4 and 6 MeV, the shape of the spectrum is well explained by U, Th and daughters, which are internal contaminations in the NaI crystal. Between 6 and 10 MeV, the γ-ray flux is strongly correlated with neutron captures in the surrounding materials. Finally, the γ-ray flux above 10 MeV falls off and is related to the very weak cosmic muon flux via muon Bremsstrahlung
Additional details
Identifiers
- PII
- S0168900201018666;
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 482
- Journal Issue
- 3
- Journal Page Range
- p. 832-839
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 34002600
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- BACKGROUND RADIATION; BREMSSTRAHLUNG; CAPTURE; DOUBLE BETA DECAY; GAMMA RADIATION; MEV RANGE; MUONS; NAI DETECTORS; NEUTRON REACTIONS; RADIATION FLUX; UNDERGROUND FACILITIES
- Descriptors DEC
- BARYON REACTIONS; BETA DECAY; BETA-MINUS DECAY; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; IONIZING RADIATIONS; LEPTONS; MEASURING INSTRUMENTS; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEON REACTIONS; RADIATION DETECTORS; RADIATIONS; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS
Optional Information
- Copyright
- Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.