Neutron and Gamma Fluxes and dpa Rates for HFIR Vessel Beltline Region (Present and Upgrade Designs) Supplement 1
Supplemental analyses are described that include the addition of surveillance specimen mounts to discrete ordinates models of HFIR beam tubes. These models have been used to calculate the changes in the displacements/atom/s (dpa rate) in the reactor vessel wall that result from design changes in the HB-2 and HB-4 beam tubes. The dpa rate is related to the embrittlement of the vessel wall that results from radiation damage. The work reported is in support of the materials surveillance program that will be implemented in conjunction with the upgrade design. Modifications to the earlier models have only a small effect on the results at the primary areas of concern in the vessel wall.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 777639
- Report Number(s):
- ORNL/TM-13693/S1; TRN: US0102037
- Resource Relation:
- Other Information: PBD: 11 Jan 2001
- Country of Publication:
- United States
- Language:
- English
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