STATUS REPORT OF THE SOLUBLE POISON SHIM CONTROL FOR THE HFIR
A number of chemicals were investigated for their possible use as a soluble poison for the HFIR shim control. Boric acid ls the usual material proposed for this type of application, and it appears to be satisfactory for a high flux reactor with a heavy water reflector containing the soluble poison. Other boron compounds such as potassium metaborats were considered. Cadmiunn sulfate and the rare earth sulfates were also considered, but they show limitations in their worth and exhlbit inverse solubilities with temperatare. Placing a soluble poison in a relatively narrow region between the core and a beryllium reflector does not appear to be promising because of solubility limitations. A mixture of boric acid and potassium metaborate may work, but it introduces a residual activity problem due to the potassium. A preliminary flowsheet was drawn and some heat generation calculations in Zircaloy-2 and boric acid poison solution were made. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- NSA Number:
- NSA-15-015311
- OSTI ID:
- 4048738
- Report Number(s):
- CF-59-12-24
- Country of Publication:
- United States
- Language:
- English
Similar Records
CHEMICAL SHIM CONTROL FOR POWER REACTORS
CHEMICAL ASPECTS OF THE USE OF SOLUBLE POISONS FOR REACTIVITY CONTROL IN CANDU. I. SOLUBLE POISON REMOVAL BY ION EXCHANGE