A bibliography on pion-pion interactions is presented. The 241 references are those available through November 7, 1961. A chronological listing is given together with excerpts or comments. In another part the references are grouped according to subject. An author index is included. (M.C.G.)

None

Fission product measurements in the PRTR primary D{sub 2}O and helium systems during the startup tests in May 1961, showed the presence of a defective fuel elements(s). Reactor operation was discontinued during the latter part of May and during June for reactor maintenance and fuel element inspection. On resumption of operation on July 1, a sampling and analytical program was initiated to study the radioisotope concentrations resulting from this defective element(s) which were present in the primary D{sub 2}O and helium systems during the various phases of reactor operation. The data accumulated during this study are to serve as background information in future fuel element rupture identification and location studies as well as serving as a guide in setting up the rupture monitor for the individual tubes of the PRTR reactor. A summary of the analytical results from this study and their theoretical interpretation is presented in this paper.

This report is a comparison of findings from the twelve two-ton test batches irradiated in the KE and H reactors with respect to reactor plutonium yield predictions. Included are plans for the application of these findings to improve the accuracy of plutonium yield equations used for Hanford product accountability.

The objective of this test is to irradiate an NPR fuel element inner tube in the ETR 3 {times} 3 Loop. the NPR fuel element is a tube in tube type. Both tubes are Zircaloy-2 clad uranium metal. The inner tube is identified by the Hanford designation NINI. In GEH-10-43 we plan to measure an NINI tube after each cycle for four cycles. An NPR inner tube with slightly larger diameter has been run in the ETR Hanford 3 {times} 3 Loop. Two NINI elements are now running in the 3 {times} 3 Loop.

Output of fuel elements during May was 107% of forecast. Engineering of present reactor fuels and N-Reactor fuel development are discussed. (DLC)

Production output of fuel elements during June was 108% of forecast. A new record high yield of 91.2% for 6-inch elements was established. Engineering of present reactor fuels and N-Reactor fuel development are described. (DLC)

This report contains data on the following cases: Pu{sup 240} concentrations in base and overbored cases; values for Pu{sup 240} concentration at 800 MWD/T; data from sources as stated; probable plant-average Pu{sup 240} concentration for the last six months of 1960; average pile parameters--C Reactor; and Pu{sup 240} concentration vs. graphite temperature in the overbored fuel geometry.

An attempt was made to appraise the slug fire and fission product possibilities associated with held-up slugs, as a function of slug power and down-time before discharge. Limitations of the data are discussed and suggestions given for refinement and related hazards analyses.

This information contained in this document is a compilation of technical specifications applicable to the process limits for the eight existing Hanford Production Reactors. These technical specifications, together with other administrative procedures and controls, would define the limits of reactor operation and would establish administrative methods for obtaining approvals, reviews, and procedures for making changes. Operating and performance restrictions are reported for: reactivity, reactor control and safety elements, power level, temperature and heat flux, reactor scram set points, reactor fuel loadings, reactor coolant system, reactor confinement, test facilities, and code compliance.

This document details activities of the Fuels Preparation Department during the month of July 1961. (FI)

This planning report is provided to describe the lead time, approximate costs, and major decisions and approvals required to enter a production program for the 500 watt SNAP 10A nuclear space power system.

Available information on the liquid lead-bismuth eutectic is reviewed. A compilation of physical, thermodynamic, and nuclear properties is included. Corrosion, corrosion inhibition, and handling of the eutectic are discussed. (R.J.S.)

This document summarizes the amounts of radioactive contamination discharged to ground from separations facilities through June 1960. Detailed data for individual disposal sites are presented on a month-to-month basis for the period of January through June 1960. Previous publications of this series are listed in the bibliography and may be referred to for specific information on measurements and radioactivity totals prior to January 1960.

This report is divided into: production (fuel elements), engineering (present reactor fuels, N Reactor development), and general (AlSi shop). (DLC)

This document details activities of the Fuels Preparation Department during the month of March 1961. (FI)

This document details activities of the Fuels Preparation Department during the month of April 1961. (FI)

This document details activities of the Fuels Preparation Department during the month of September, 1961. (FI)

This document details activities of the Fuels Preparation Department during the month of February 1961. (FI)

This document details activities of the Fuels Preparation Department during the month of October 1961. (FI)

This document details activities of the Fuels Preparation Department during the month of January 1961. (FI)