Nuclear safety rules for transporting plutonium compounds between the 231 and 234-5 Buildings were established in Documents HW-30328 and HW-31465. Provisions for the co-transporting of loaded sample cans, filter boats and/or product samples were not included in the above documents. In the interest of economy and efficiency the rules have been reviewed and revised according to the provisions set forth in this document. The paper describes the present transportation limits and the revised limits for transporting plutonium nitrate, plutonium oxalate, and other plutonium samples. The limits are in keeping with the policy of preventing the accidental accumulation of unsafe masses of Pu.

The isotope Mn{sup 56} is the major short half-life constituent of reactor effluent water. It has half-life of 2.59 hours and decays by emission of a 2.86 mev maximum beta to stable Fe{sup 56}. This report describes a rapid method for the quantitative determination of Mn{sup 56} in a radiochemically pure form for use as a routine control procedure. A carrier-precipitation procedure has been developed which successfully separates Mn{sup 56} from other radioisotopes in reactor effluent water. It involves addition of Mn{sup ++} carrier to the sample followed by oxidation to MnO{sub 4}, removal of radioactive cations by stirring with Dowex 50 cations resin, and precipitation as MnO{sub 2}{center dot}xH{sub 2}O. The MnO{sub 2}{center dot}xH{sub 2}O is dried and weighed and its radioactivity measured by beta counting. A self-adsorption and self-water and self-scatter curve for Mn{sup 56}O{sub 2}{center dot}xH{sub 2}O was prepared by using a Mn{sup 56} spike prepared from reactor effluent water. For samples of interest a correction for self-absorption and self-scatter will be unnecessary. 2 refs., 2 figs., 3 tabs.

None

Recently experimental evidence has accumulated showing that high-energy collisions of protons with various nuclei induce a considerable polarization in proton beams, and a mechanism has been proposed to account for this effect.

This report discusses ruthenium releases from the Redox plant in 1954. Plans for the controlling the release of ruthenium to the stack is summarized. (JL)

Prior to fiscal year 1955 waste tank scheduling for Separations Plants included the assumptions that T Plant would cease operations in March, 1955 and B Plant would nto be reactivated. At the beginning of the fiscal year these were changed to the assumptions that T Plant would operate through June, 1958 and B Plant, after reactivation, would operate July, 1955 through June, 1957. It has been necessary to alter waste tank scheduling accordingly. The letter of July 23, 1954, {open_quotes}B Plant Waste Storage Forecast{close_quotes}, outlined the plan for the disposal of wastes from B Plant on the assumption that direct feed of metal waste from B Plant ot the TBP Plant would not be done. On July 30, 1954 this letter was reissued as {open_quotes}Waste Storage for B Plant Reactivation{close_quotes}, with a revision including more details and a provision for the direct feed of metal waste. On August 6, 1954 the letter {open_quotes}T Plant First Cycle Waste{close_quotes} was issued recommending that scavenging of T Plant first cycle waste be started by December 1, 1954. On October 22, 1954 the letter entitled {open_quotes}Justification for T Plant First Cycle Waste Scavenging{close_quotes} gave the detailed economic justification. The present letter summarizes the preceding …