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U.S. Department of Energy
Office of Scientific and Technical Information

Annualar Core Pulse Reactor upgrade quarterly report, January--March 1976

Technical Report ·
OSTI ID:7338224
The object of the ACPR Upgrade is to arrive at a reactor modification which will provide an increased pulsed neutron fluence in the irradiation cavity without an increased degradation of the pulse duration. The upgraded reactor will also have an increased steady-state neutron flux. The approach to the upgrade modification involves a two-region core concept. The inner region, surrounding the irradiation cavity, consists of a high-heat capacity fuel which will sustain a large fission energy deposition. The outer region consists of a uranium--zirconium hydride fuel similar to the present ACPR fuel. This reactor modification will make use of the majority of the existing reactor structure and can be accomplished in a relatively short time. The ACPR Upgrade project is divided into nine tasks to improve management of the overall project and to maintain close control of the project budget. This report discusses the progress on each task in a separate chapter.
Research Organization:
Sandia Labs., Albuquerque, N.Mex. (USA)
DOE Contract Number:
E(29-1)-789
OSTI ID:
7338224
Report Number(s):
SAND-76-0281; NUREG-766500
Country of Publication:
United States
Language:
English