Monitoring the SNS basement neutron background with the MARS detector

We present the analysis and results of the first dataset collected with the MARS neutron detector deployed at the Oak Ridge National Laboratory Spallation Neutron Source (SNS) for the purpose of monitoring and characterizing the beam-related neutron (BRN) background for the COHERENT collaboration. M...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of instrumentation 2022-03, Vol.17 (3), p.P03021
Hauptverfasser:	Akimov, D., An, P., Awe, C., Barbeau, P.S., Becker, B., Belov, V., Bernardi, I., Blackston, M.A., Bock, C., Bolozdynya, A., Browning, J., Cabrera-Palmer, B., Chernyak, D., Conley, E., Daughhetee, J., Detwiler, J., Ding, K., Durand, M.R., Efremenko, Y., Elliott, S.R., Fabris, L., Febbraro, M., Gallo Rosso, A., Galindo-Uribarri, A., Green, M.P., Heath, M.R., Hedges, S., Hoang, D., Hughes, M., Johnson, T., Khromov, A., Konovalov, A., Kozlova, E., Kumpan, A., Li, L., Link, J.M., Liu, J., Mann, K., Markoff, D.M., Mastroberti, J., Mueller, P.E., Newby, J., Parno, D.S., Penttila, S.I., Pershey, D., Rapp, R., Ray, H., Raybern, J., Razuvaeva, O., Reyna, D., Rich, G.C., Ross, J., Rudik, D., Runge, J., Salvat, D.J., Salyapongse, A.M., Scholberg, K., Shakirov, A., Simakov, G., Sinev, G., Snow, W.M., Sosnovstsev, V., Suh, B., Tayloe, R., Tellez-Giron-Flores, K., Tolstukhin, I., Ujah, E., Vanderwerp, J., Varner, R.L., Virtue, C.J., Visser, G., Wongjirad, T., Yen, Y.-R., Yoo, J., Yu, C.-H., Zettlemoyer, J., Johnson, B.A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Basements capture CEvNS coherent elastic neutrino-nucleus scattering Coherent scattering Elastic scattering gadolinium gated Neutrino detectors Neutrinos Neutron counters neutron detector Neutron detectors (cold, thermal, fast neutrons) neutron spectrometer Neutrons neutrons, SNS NUCLEAR PHYSICS AND RADIATION PHYSICS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS plastic scintillator Spallation Spallation Neutron Source
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	We present the analysis and results of the first dataset collected with the MARS neutron detector deployed at the Oak Ridge National Laboratory Spallation Neutron Source (SNS) for the purpose of monitoring and characterizing the beam-related neutron (BRN) background for the COHERENT collaboration. MARS was positioned next to the COH-CsI coherent elastic neutrino-nucleus scattering detector in the SNS basement corridor. This is the basement location of closest proximity to the SNS target and thus, of highest neutrino flux, but it is also well shielded from the BRN flux by infill concrete and gravel. These data show the detector registered roughly one BRN per day. Using MARS' measured detection efficiency, the incoming BRN flux is estimated to be 1.20 ± 0.56 neutrons/m^2/MWh for neutron energies above ∼3.5 MeV and up to a few tens of MeV. We compare our results with previous BRN measurements in the SNS basement corridor reported by other neutron detectors.
ISSN:	1748-0221 1748-0221
DOI:	10.1088/1748-0221/17/03/P03021