HAZARDS REPORT FOR THE SM-1 CORE II WITH THE SILVER-CADMIUM-INDIUM CONTROL ROD ABSORBER SECTION

Author:: Stephenson, L. D.
Published:: United States : [publisher not identified], 1962.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1962.
Physical Description:: microopaque : positive ; 8 x 13 cm

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Summary:

An analysis of changes in the SM-1 core indicated that re-insertion of the SM-2B stationary element and insertion of surveillance specimens do not affect hazards potential previously defined for SM-1. Replacement of the europium absorber by the Ag-Cd-In absorber will have negligible effect on reactivty control worth of the rod. The absorber meat section is encapsulated to prevent exposure of silver alloy to the primary coolant; postulated release of silver due to a cladding defect, after 2 years irradiation in SM-1, would not cause a hazard such as to restrict access to the vapor container. Possibility of steam formation in the air gap between the absorber core and cladding, causing a clad ding failure, is remote. Deformation of the absorber section sufficient to cause the rod to stick, would not impair the ability of the other rods to shut down the reactor safely. (auth)

Report Numbers:

APAE-84(Add.VI)

Other Subject(s):

Collection:

U.S. Atomic Energy Commission depository collection.

Note:

DOE contract number: AT(30-1)-2639
NSA number: NSA-16-015018
OSTI Identifier 4796792
Research organization: Alco Products, Inc., Schenectady, N.Y.

View MARC record | catkey: 38390254