The magnitude of the K{sup 0}{sub S} - K{sup 0}{sub L} mass difference has been measured by monitoring the time dependence of the strangeness of neutral K's produced in hydrogen and deuterium in the LRL 25 '' hydrogen bubble chamber. The particles originate as K-bar{sup 0} in K{sup -} change-exchange scatters at .85 to 1.15 Bev/c; the signature for an S = -1 reaction is the production of a hyperon. Seventy- seven events were found, obtaining {Delta}{omega} = 0.50 =- 0.15, measured in units of inverse K{sup 0}{sub S} lifetime. This and two other recent measurements using the same method are consistent with one another and with measurements of {Delta}{omega} by other means. A combined ''world average'' of nine reasonably consistent measurements gives {Delta}{omega} = 0.60 +- 0.06.

A double-focusing magnetic field for a spectrometer of the flat type which gives radial focusing to roughly the sixth order, and which utilizes azimuthal variation of the field coefficients, has been devised.

The transverse electromagnetic coupling of bunches of particles with each other is investigated theoretically, and shown to incorporate the possibility (due to the effect of nonperfectly conducting vacuum chamber walls) of coherent instability even when the longitudinal distance between bunches is much larger than the transverse dimensions of the vacuum tank. The modes of oscillation in which the bunches move rigidly are investigated; criteria for stability, and expressions for the small amplitude growth rates under unstable conditions are presented. The case of a single bunch is considered in detail and demonstrated to be stable (even in the absence of landau damping) provided {nu} lies between an integer and the next higher half-integer, where {nu} is the number of transverse free betatron oscillations occurring in one revolution; for many bunches which are sensibly different in intensity (a criterion for this is presented), all modes are stable provided {nu} satisfies the same restriction. For equally spaced bunches of equal numbers of particles, approximately half the modes are unstable without Landau damping. Numerical examples are presented covering some intermediate situations.

A soil map and a descriptive report of Hanford Area soils grouped according to morphologic and genetic characteristics are presented.

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.

Results of an investigation of fuel element outer annulus enthalpy imbalance are reported and analytical results of suggested methods to limit this imbalance are presented. Also included are comparisons of calculated and experimental enthalpy imbalance ratios along with other quantities. Results indicate that tightening fuel tolerances and clearances can substantially reduce the present outer annulus imbalance thereby increasing power capability. A basic pre-requisite to reduction of clearance between fuel support diameter and process tube diameter is a test establishment of the minimum allowable clearance compatible with charging requirements. Matching fuel elements to process tube diameters will also reduce the imbalance but is in general not feasible at the present time.

The thoria program at Hanford was initiated in response to an order placed by the Atomic Energy Commission for the production of uranium-233 from the irradiation of thorium or thorium oxide (thoria). The initial orders called for approximately 130 kg U-233 and subsequent orders have since increased this figure. This report provides a brief history of the thoria program, an analysis of the thoria target element failures which occurred during the irradiation phase, and the significant changes in the fabrication methods and inspection criteria and techniques which were made in response to the large number of failures that occurred in the early stages of the program. The thoria program has sustained 25 thoria target element failures. Eighteen of these failures are believed to have been caused as a result of water entry through fabrication defects in the closure weld. Two of the failures were attributable to water entry through the cladding as a result of charging machine damage, and the remaining five failures were caused by water entry in some undetermined manner. The majority of thoria element failures occurred in the early stages of the program. Upon determining the cause of failure, Production Fuels Section initiated programs to upgrade the …

Heat discharged to the Columbia River in reactor cooling water is one of the more important pollutants from Hanford operations. The effect of this heat on river temperatures has been studied for several years, primarily because of the potential effect on the Columbia River fisheries. This document presents a summary of recent river temperature experience, with comparison data for a better perspective.

The Columbia River Cooling Program basically consists of effecting a reduction in river temperature at the Hanford site during the summer season. The implementation of this program in recent years has been accomplished through the selective and controlled discharge of waste water at Grand Coulee Dam. The purpose of this report is to describe the river cooling program conducted in CY-1965 by Facilities Engineering personnel, and present the program results.

This report for March 1966, from the Chemical Processing Department at HAPO, discusses the following: Production operation; Purex and Redox operation; Finished products operation; maintenance; Financial operations; facilities engineering; research; employee relations.

This document is an inventory of the nuclear materials held on site at HAPO.

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 …

This report has the following sections: Summary of Activities; Civilian Power Reactors; Applied and Reactor Physics; Reactor Fuels and Materials; Engineering Development; Plutonium Recycle Program; Advanced Systems; and Nuclear Safety.

None

None

ABS>Declassified 29 Aug 1973. Accomplishments on the HHT-4 Cluster Corrosion Test from September 1965 to March 1966 are described. The development of hardware, techniques, and procedures to upgrade the state-of-theart of high temperature corrosion testing of complete clusters is discussed. In addition, testing of support block and components designs in support of NRX-A4 and NRX-A5 designs using the cluster test is reviewed. 5 references. (auth)

Declassified 28 Aug 1973. Optical microscopy of untested and hot-gas- tested Rover unfueled and fueled elements was used to study coating adherence and porosity development. Application of microradiography to the examination of Rover elements was evaluated. Nitridation of Nb carbide was studied briefly. (DLC)

The Hanford Project has over 500 wells which are used for the surveillance of radionuclides in the ground resulting from waste disposal. Wells are located at disposal sites to monitor the migration of radionuclides in the soil and to determine when a disposal facility is to be abandoned. Outside of the immediate disposal areas, wells are sampled to determine the movement of contaminants in the ground water zone. The spread of wastes in unconfined ground water aquifers is followed by routine sampling, and the confined aquifers in the area are sampled frequently where possible. Maps of gross BETA and tritium concentrations in the ground water are presented to define contamination spread from the disposal areas during the last six months of 1965. (auth)

None

In Testing and Irradiation Service requested that the reactor coolant be sampled in an attempt to determine the amount of air evolution in the vicinity of the K downcomer. This letter includes the data which were obtained and conclusions drawn from analysis of the data.

None

None

None

None