English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/221782
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Neutron flux and spectrum in the dresden felsenkeller underground facility studied by moderated he 3 counters

AuthorsGrieger, M.; Hensel, T.; Agramunt, Jorge ; Bemmerer, D.; Degering, D.; Dillmann, I.; Fraile, L.M.; Jordan, D.; Köster, U.; Marta, M.; Müller, S.E.; Szücs, T.; Tain, José Luis; Zuber, K.
Issue DateJun-2020
PublisherAmerican Physical Society
CitationPhysical Review D 101: 123027 (2020)
AbstractAmbient neutrons may cause significant background for underground experiments. Therefore, it is necessary to investigate their flux and energy spectrum in order to devise a proper shielding. Here, two sets of altogether ten moderated He3 neutron counters are used for a detailed study of the ambient neutron background in tunnel IV of the Felsenkeller facility, underground below 45 m of rock in Dresden/Germany. One of the moderators is lined with lead and thus sensitive to neutrons of energies higher than 10 MeV. For each He3 counter moderator assembly, the energy-dependent neutron sensitivity was calculated with the FLUKA code. The count rates of the ten detectors were then fitted with the MAXED and GRAVEL packages. As a result, both the neutron energy spectrum from 10-9 to 300 MeV and the flux integrated over the same energy range were determined experimentally. The data show that at a given depth, both the flux and the spectrum vary significantly depending on local conditions. Energy-integrated fluxes of (0.61±0.05), (1.96±0.15), and (4.6±0.4)×10-4 cm-2 s-1, respectively, are measured for three sites within Felsenkeller tunnel IV which have similar muon flux but different shielding wall configurations. The integrated neutron flux data and the obtained spectra for the three sites are matched reasonably well by FLUKA Monte Carlo calculations that are based on the known muon flux and composition of the measurement room walls.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.101.123027
URIhttp://hdl.handle.net/10261/221782
Identifiersdoi: 10.1103/PhysRevD.101.123027
issn:: 2470-0029
Appears in Collections:(IFIC) Artículos
Files in This Item:
File Description SizeFormat 
66_Agramunt_Neutron.pdf738,67 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.