Characterization of the radiation background at the Spallation Neutron Source

6th European Conference on Neutron Scattering

Dijulio, Douglas D.^1,2 ; Cherkashyna, Nataliia^1 ; Scherzinger, Julius^1,2 ; Khaplanov, Anton^1 ; Pfeiffer, Dorothea^1,3 ; Cooper-Jensen, Carsten P.^1,4 ; Fissum, Kevin G.^1,2 ; Kanaki, Kalliopi^1 ; Kirstein, Oliver^1,5 ; Ehlers, Georg^6 ; Gallmeier, Franz X.^7 ; Hornbach, Donald E.^7 ; Iverson, Erik B.^7 ; Newby, Robert J.^7 ; Hall-Wilton, Richard J.^1,8 ; Bentley, Phillip M.^1,4

European Spallation Source ERIC, Lund

SE-221 00, Sweden^1

Division of Nuclear Physics, Lund University, Lund

SE-221 00, Sweden^2

CERN, Geneva 23

CH-1211, Switzerland^3

Department of Physics and Astronomy, Uppsala University, Uppsala

751 05, Sweden^4

University of Newcastle, Callaghan

NSW

2308, Australia^5

Quantum Condensed Matter Division, ORNL, Oak Ridge

TN

37831, United States^6

Instrument and Source Division, ORNL, Oak Ridge

TN

37831, United States^7

Mid-Sweden University, Sundsvall

SE-851 70, Sweden^8

关键词: European spallation sources;    Extended range;    Flux profiles;    Neutron dose rates;    Oak ridge National Laboratory;    Photon detector;    Radiation background;    Spallation neutron sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012033/pdf
DOI  :  10.1088/1742-6596/746/1/012033

来源: IOP

【 摘 要 】

We present a survey of the radiation background at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory, TN, USA during routine daily operation. A broad range of detectors was used to characterize primarily the neutron and photon fields throughout the facility. These include a WENDI-2 extended range dosimeter, a thermoscientific NRD, an Arktis4He detector, and a standard NaI photon detector. The information gathered from the detectors was used to map out the neutron dose rates throughout the facility and also the neutron dose rate and flux profiles of several different beamlines. The survey provides detailed information useful for developing future shielding concepts at spallation neutron sources, such as the European Spallation Source (ESS), currently under construction in Lund, Sweden.