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Report on Conversion of the Worcester Polytechnic Institute Nuclear Reactor Facility to Low-Enriched Uranium

Technical Report ·
DOI:https://doi.org/10.2172/6399399· OSTI ID:6399399
On 20 December 1988, WPI received 28 LEU 18 plate aluminide elements for use in the reactor core, replacing HEU fuel unloaded on 16 December 1988. Initial loading began on 27 December 1988, with initial criticality being achieved on 29 December 1988. Testing on the LEU core was performed and the results compared with calculations performed for WPI by Argonne National Laboratory (ANL). It should be noted that the ANL calculations were in all cases based on the reference 24 element core shown in Figure 1. HEU measurements were made using the reference core. It was not possible, however, to perform LEU measurements with the reference 24 element core since criticality occurred at a fuel loading of slightly greater than 21 elements.
Research Organization:
Worcester Polytechnic Institute, MA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
DOE Contract Number:
FG02-86ER75271
OSTI ID:
6399399
Report Number(s):
DOE/ER/75271-T2; ON: DE91004593
Country of Publication:
United States
Language:
English