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This report presents a design of a two-point liquid level controller for cryogenic liquids in the range of 7°R (liquid helium) to 160° (liquid oxygen) that uses carbon composition resistors for the sensing elements.

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During this period, continued effort has been placed on the fabrication of high burnup irradiation test specimens, on additional UO2-PuO2 and PuO2 sintering, on oxygen diffusion and thermal expansivity measurements using UO2-PuO2, and on the preparation of reproducible PuO2 powder.

During this period, plutonium wire was extruded and three crystal growing tests were performed in the modified Andrade apparatus. In addition, continued effort has been placed on the fabrication of the high burnup irradiation test specimens, on additional UO2-PuO2 sintering studies and on oxygen diffusion and thermal expansivity measurements.

The coolant recirculation system in the Pathfinder reactor comprises three mixed-flow centrifugal pumps and three piping loops. The design criteria are summarized; and flexibility and stress analyses on the piping are presented, together with a vibration analysis of one pump and loop. The results indicate that vibration should be no problem, that all stresses are within the allowable limits, and that there should be no resonance difficulties during pump operation. (D.C.W.)

Consolidated Controls Corporation (CCC)* LVDT Pressure Transducers, Models 416M35 and 412M102, were analyzed to determine their expected performance in a radiation fields.

Nuclear excavation is the name given to the concept of using large scale nuclear explosion craters for useful projects, such as harbors, canals, and roadway cuts. It is one of the principal applications of the Plowshare Program for industrial, or peaceful, uses of nuclear explosives. Plowshare is sponsored by the U.S. Atomic Energy Commission and is under the technical direction of the Lawrence Radiation Laboratory at Livermore, California. The purpose of this paper is to describe cratering concepts and the present state of nuclear excavation technology. The general nature of the safety hazards associated with nuclear excavation are also discussed.

Under the stimulus of electronic materials development - particularly thin-film studies - and the need for space environmental simulation chambers, a very rapid increase in the availability of industrial-sized vacuum components and systems operable in the ultrahigh vacuum range has taken place in the last three years. It is the purpose of this paper to explore the design considerations of ultrahigh vacuum systems for metallurgical applications.

A demonstration of the disposal of high-level radioactive waste solids to be carried out in a salt mine at Lyons, Kansas, will have as its objectives: (1) the demonstration of required waste-handling equipment and techniques, (2) the determination of the stability of salt under the influence of heat and radiation, and (3) the collection of information on creep and plastic flow of salt which is needed for the design of an actual disposal facility. As presently conceived, 14 irradiated fuel assemblies from the Engineering Test Reactor will serve as a source of radiation in lieu of actual solidified wastes. The assemblies will be placed in a circular array of holes in the floor with one can in the center and other six cans located peripherally, spaced 5 ft on centers. During the course of the 2-year test, four sets of assemblies will be used to achieve a peak dose to the salt of about 8 x 10/sup 8/ rad and the temperature of the adjacent salt will be maintained at 200 deg C with electrical heaters. A second array, consisting only of heaters, will be operated as a control to determine those effects due solely to heat. In addition to …

Report evaluating the design characteristics and limitations of mobile blankets for breeder reactors. This also includes economic considerations for each tested blanket. Appendices begin on page 40.

Observation of the long-term effects of weathering on 10 nuclear craters over periods as long as 12 years.

Criminal intelligence report regarding an interview with Thomas M. and Natalie Ray. The Rays were friends of Lee Harvey Oswald and allowed him to stay at their home a few days prior to the assassination of President Kennedy. They stated that they first met Oswald at a part given at Mr. Declan Ford's home.

Criminal intelligence report regarding an interview with Thomas M. and Natalie Ray. The Rays were friends of Lee Harvey Oswald and allowed him to stay at their home a few days prior to the assassination of President Kennedy. They stated that they first met Oswald at a part given at Mr. Declan Ford's home.

Investigative report addressed to Captain W. P. Gannaway of the Dallas Police Department. The report, which was submitted by L. D. Stringfellow, states that Donald Roy Tabon and Jack Ruby were involved in a fight. This fight was prior to Jack Ruby's arrest for the murder of Lee Harvey Oswald.

Investigative report addressed to Captain W. P. Gannaway of the Dallas Police Department. The report, which was submitted by L. D. Stringfellow, states that Donald Roy Tabon and Jack Ruby were involved in a fight. This fight was prior to Jack Ruby's arrest for the murder of Lee Harvey Oswald.

Report by V. J. Brian regarding attempts made by an unknown white male to photograph Bill Lovelady, an employee of the Texas School Book Depository.

Poor quality photocopy of a criminal intelligence report addressed to Captain W. P. Gannaway of the Secret Service Bureau in Dallas, Texas. The report, which was submitted by L. D. Stringfellow and T. T. Wardlaw, states that Jack Ruby was in the Allright Parking Garage with Karen Lynn Bennett.

Criminal intelligence report addressed to Captain W. P. Gannaway of the Secret Service Bureau in Dallas, Texas. The report, which was submitted by detectives H. M. Brumley and M. H. Brumley, states that William Francis Beckman II was involved in a disturbance on the street with Billy Nowlin Lovelady. This disturbance occurred when Beckman tried to photograph Lovelady.

Report addressed to W. P. Gannaway of the Special Service Bureau in Dallas, Texas. In the report, detective P. M. Parks states that a background check was conducted for Brenda Ray, also known as Bronson.