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MONTHIZ STATUS A.63 PROGRESS REPORT Top Secret Appendix Under Separate Cover Avthonzed for F’ublic Release a Budget and Reports Division
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Effects of Actinium on Experimental Animals - A t Mound Ia'ooratory, female rats carryjng an extensive body burden of actinium equilibrium mixture gave b i r t h t o young that. contained very little or no radioactive substances. suckled, they picked up activity from the mothers' milk, and within about two weeks multiple fr act x res of the long bones occurred and X-ray examination showed a curious beaded structure. The experiments are being repeated, and the new protocol includes a specially fortified.ration t.0 check on the possibility that a nutritional deficiency might be involved.. Contizlual measurenents on animals from the original experiment will be required, hcwever, tor le ten cine which isotopes are being transmitted inthe nated nErdlstorlt was tested on Nhite Oak Creek water with approximately loL2 pC/cc and pulverized. limestone i n standard operating yrecedures. Results from eleven m s indicated the 1mit could. effect. at. least the followiog removals: fission-prochucts ~ . x t u r efrm the Chalk River reactor, 65 percent. sites have been selected for the drilling of additional test wells in the area around Waste Pi.t No, 2 t o wiy~1emen.t.the d.ata from t h e three exLst.ing wells. The water i n two WBUSwas foiind to b e gro3sI-y contaniina.ted with chemical salts, lar ely nitrates ; tamina.t'i.on wgs foimd. i n the well 225 feet, from the s0ut.h end of the pit, past, 1.8 mont.hs a. total of 278,000 gallons of l i q u i d wastes containing approximately Consultation and Special Problens--The relative toxicity of U-233 was investigated. to de tea ne the extent >n which the hazards associated with h&dling U-233- - would i-nfliienccz the costs of mavufactaring fuel elements. Chiefly because of its greater specific activity but also because of differences i n energies; the hazard irLt h e prnceqsbng of I!-233 would be 133 t.k-es that. of U-235. Preliminary tests indicate that. the additional rrecaut.Fons required for U-233 will lead toan approxi-