Characterization of the radiation background at the Spallation Neutron Source

• Published in: Journal of Physics: Conference Series
• Main Authors: Dijulio, Douglas D., Cherkashyna, Nataliia, Scherzinger, Julius, Khaplanov, Anton, Pfeiffer, Dorothea, Cooper-Jensen, Carsten P., Fissum, Kevin G., Kanaki, Kalliopi, Kirstein, Oliver, Ehlers, Georg, Gallmeier, Franz X., Hornbach, Donald E., Iverson, Erik B., Newby, Robert J., Hall-Wilton, Richard J., Bentley, Phillip M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: IOP Publishing 2016
• Subjects: Accelerator Physics and Instrumentation; Arktis; Arktis*
• Online Access: https://lup.lub.lu.se/record/aad6bff5-e2ae-48cd-b4e2-a9d172e25b50; https://doi.org/10.1088/1742-6596/746/1/012033

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 Arktis 4He 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.