Thermal diffusivity of Al-clad MTR-ETR type fuel plates was measured from room temperature to 600/sup 0/C. (DLC)

This monthly report details activities of the 200 Area for the month of April 1966.

This report details activities of the N-Reactor Department for the month of February 1966.

Submitted herewith are source and special nuclear material composition of ending inventory reports for the month of July 1966. Normal uranium, depleted uranium, plutonium, thorium, U-233, tritium, deuterium, enriched lithium, neptunium 237 and plutonium 238 are all inventoried.

This report details activities of the Hanford Atomic Products Department for the month of October 1966.

The programmed long outage which started May 1 was concluded on June 6. During this outage, the sixth heat exchanger cell was tied in, the auxiliary steam boiler was completely overhauled, four steam generators were equipped with isolation valves, extensive replacements of the process tube resistance temperature detectors were made, the reactor was re-orificed, a leaking reactor gas seal was repaired, extensive preventive maintenance was done, and numerous smaller pieces of work were accomplished. After startup, testing of the WPPSS generating station equipment was resumed. Electric power up to 320 Mw was generated, generator trip-offs were executed, and data on the reactor plant response were taken. Both the generating station and the reactor plant behaved excellently. The sixth cell installations performed as designed. Electrical power generation is now limited to about 400 Mw by the unavailability of a step down transformer on the BPA system at Vantage. Elevation of the generated power level to the rated 800 Mw will be possible in the early autumn when transformer delivery is expected by BPA. Three scrams from relatively low power levels occurred during the June 6 startup, which may be regarded as being associated with returning the plant to service after a …

The EG&G Film Magazine Type XPH-47 was designed to meet specific NC-135 program requirements for a reliable, simple and economical unit which would adapt the LC-4 camera for moving film oscilloscopic photography at film speeds suitable for the separation of oscilloscope sweep traces. Essentially, the XPH-47 is a standard Beattie-Coleman Type 32800 magazine, redesigned for incorporation of features which would fulfill these requirements. One such feature - replacement of the original motor with a new motor having a control circuit - provides constant speed operation and consequently, reliability not achieved by other film magazines. The XPH-47 is a self-contained unit consisting of both supply and takeup spools and a film transport mechanism. It is normally loaded in subdued light with 100 feet of 35-mm film and then placed on the camera. The magazine is removed from the camera, and the film is unloaded in a darkroom or in subdued light. The XPH-47 can be wired for use directly on the LC-4 camera to allow magazine operation with the shutter open. If desired, with additional minor wiring changes in the LC-4 camera, film motion signals can be routed through the camera to an external control panel. The leads to the two …

A sample of 2500 {Xi}{sup -} and 500 {Xi}{sup 0} hyperons, produced in {Xi}K, {Xi}K{pi}, and {Xi}K{pi}{pi} final states by K{sup -} (in H{sub 2}) at incident momenta of 1.7 to 2.7 BeV/c, has been analyzed. The data are from an exposure (K-63) of 26 events/{mu}b in the 72-inch bubble chamber; approximately 85% of the {Xi}{sup -} events and 60% of the {Xi}{sup 0} events have been analyzed. For the {Xi}, they determine the spin and decay parameters a{sub {Xi}} and {Phi}{sub {Xi}} = tan{sup -1} ({beta}{sub {Xi}}/{Gamma}{sub {Xi}}). Combining their data with 900 {Xi}{sup -} and 150 {Xi}{sup 0} events from an earlier experiment (K-72), they obtain the following results: (1) {Xi} spin - J = 1/2 favored over J = 3/2 by {approx} 2.5 standard deviations; (2) {Xi} decay parameters (assuming a{sub {Lambda}} = 0.647 {+-} 0.048) - a{sub {Xi}{sup -}} = -0.398 {+-} 0.041, {Phi}{sub {Xi}{sup -}} = 9.8{sup o} {+-} 9.0{sup o}; a{sub {Xi}{sup 0}} = -0.413 {+-} 0.104. They observe {Xi}*(1530) and {Xi}*(1817); their data are insufficient for analysis of suggested {Xi}* resonances at 1705 and 1933 MeV. They measure the {Xi}*(1530) electromagnetic mass difference {Delta}m = m({Xi}*{sup -}) = m({Xi}*{sup 0}) = 2.0 {+-} …

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This report addresses the operation and maintenance for Model ME-8W.

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The attached pages show the status of production test control tube loadings in reactor process tubes containing significant amounts of SS materials. For further description of column headings and the current discharge goal exposure plan the reader is referred elsewhere.

This report gives the status of production test control tube loadings in reactor process tubes containing significant amounts of SS materials. Data are given in table form. For further description of column headings and the current discharge goal exposure plan refer to Document RL-REA-837.

This report gives the status of production test control tube loadings in reactor process tubes containing significant amounts of SS material. Data are given in table form. For further description of column headings and the current discharge goal exposure plan refer to Document DUN-1048.

This document is a two-page trip report of Hanford personnel to Lawrence Livermore in February 1966. The subjects of the discussions were the use of U-233 as weapons material and the desire of Lawrence personnel to obtain 10-20 kg of clean U-233.

This document is a report dated February 10, 1966 on the mechanical properties of irradiated aluminium reactor process tubing. It details the testing of irradiated and unirradiated tube samples and presents the data from these tests.

Approximately ten years ago single-tube tests demonstrated the feasibility of using unfiltered river water as a reactor coolant from the standpoint of aluminum corrosion and film formation. However, some effluent activity penalty was indicated. Inasmuch as both current water plant operation and the characteristics of Columbia River water have changed, it was deemed appropriate to reinvestigate the use of partially treated water as a reactor coolant. This report summarizes the results of a half-reactor test carried out at F Reactor.