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Ray-Tracing Simulations Characterising the Performance of the Proposed 2024 HFIR HB4 Main Shutter...

by Matthew J Frost, Garrett E Granroth, Thomas Huegle, J L Robertson
Publication Type
ORNL Report
Publication Date

The Main Shutter at HB4 will serve two purposes after the HFIR Beryllium Reflector Replacement planned to take place in 2024. First as the primary certified safety control controlling the passage of neutrons from the cold source in the HFIR pressure vessel into the cold guide hall, and second as the first set of reflecting surfaces used to guide neutrons from the source and into the individual guide starts for each instrument in the cold guide hall.