CRITICAL EXPERIMENTS FOR THE PRELIMINARY DESIGN OF THE ARGONNE HIGH FLUX REACTOR

Technical Report · Thu Jun 01 04:00:00 EDT 1961

DOI:https://doi.org/10.2172/4841516· OSTI ID:4841516

de Villiers, J. W.L. ed.

Critical experiments were performed with two assemblies simulating a cold clean, and an end-of-cycle,- Argonne High Flux Reactor, core. Data were obtained for flux distributions; cadmium ratios; temperature and void coefficients; and control rod, beam hole, and reflector worths. The data obtained furnished confirmation of theoretical predictions. The peak 2200-m/sec flux per unit power was measured as 3 x 10/sup 7/ n/(cm/sup 2/)(sec)(watt) for both cores. The two cores had internal H/sub 2/O thermal columns, 12.7 cm x 12.7 cm x 50.8 cm. These were enclosed by 100-liter fuel zones. The radial reflector was 90% beryllium containing 10% H/sub 2/0 plus Plexiglas by volume. The top and bottom reflectors were H/sub 2/O. The critical mass was 3.58 kg U/sup 235/ with a 1.16 metal-towater ratio in the fuel zone. The critical mass with a 1.60 metal- to-water ratio, taking into account 34.3 kg Type 304 stainless steel, was 7.15 kg U/sup 235/. (auth)

• Research Organization: Argonne National Lab., Ill.
• DOE Contract Number: W-31109-ENG-38
• NSA Number: NSA-15-028335
• OSTI ID: 4841516
• Report Number(s): ANL-6357
• Country of Publication: United States
• Language: English

Related Subjects

BEAMS
BERYLLIUM
CADMIUM
CONTROL ELEMENTS
CRITICAL ASSEMBLIES
CRITICALITY
DISTRIBUTION
MASS
MEASURED VALUES
NEUTRON FLUX
PHYSICS
POLYMERS
REFLECTORS
STAINLESS STEELS
TEMPERATURE
URANIUM 235
WATER