Significant accomplishments completed during Phase III of the /sup 60/Co Heat Source Demonstration program include the following: encapsulation of 2 MCi of /sup 60/Co; fabrication of the heat source, including the ASME coded pressure vessel/core assembly, and biological shielding; endurance testing of a prototype heat pipe for a period of 28 months; fabrication and qualification of the heat pipe emergency cooling subsystem; issue of the safety evaluation report, reference 3, and the operations manual, reference 4; and heat source assembly. The planned demonstration test program was modified to include testing of a total power system. Based on an evaluation of available power conversion systems, which included the closed-cycle Brayton and organic Rankine systems, the closed-cycle Brayton system was selected for use. Selection was based on advantages offered by the direct coupling of this conversion system with the gas-cooled heat source. In implementing the test program, the AiResearch BCD power conversion system was to be coupled to the heat source following initial heat source performance testing and part way through the endurance test. In accordance with the program redirection the following Phase IV checkout operations were completed to evaluate procedural and hardware acceptability: heat source dummy fueling; fueling cask sielding survey; …

The generator developed for the Pioneer mission evolved from the SNAP 19 RTG's launched aboard the NIMBUS III spacecraft. In order to satisfy the power requirements and environment of earth-escape trajectory, significant modifications were made to the thermoelectric converter, heat source, and structural configuration. Specifically, a TAGS-2N thermoelectric couple was designed to provide higher efficiency and improved long term power performance, and the electrical circuitry was modified to yield very low magnetic field from current flow in the RTG. A new heat source was employed to satisfy operational requirements and its integration with the generator required alteration to the method of providing support to the fuel capsule.

A daylight photograph taken after a fire at an apartment complex in Oklahoma City, Oklahoma County, Oklahoma. The image shows a fireman dropping debris from an upper floor of the structure as water falls from the roof behind him. A ladder the fireman used to reach his location leans against the building. No caption.

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bicycle enthusiasts Bill Allstetter, Jim Thomas, Teresa Tidwell, Fed Porter and Rusty Brown survey the route of the West Coast bike project trip."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Instructor Michael Blakeslee shows Alan Rowin, 8, how pumice-like material creates eruption as a by-product of a chemical reaction."

Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Bunch of Whoppers was hauled in by these two junior anglers, Kevin White, 13, and his brother, Glenn, 10, at the Northwest Optimist Club fishing derby. About 1,600 youngsters tried their lick at the derby, held at Kids Lake on Lake Hefner"

Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Louisanan Roy Efferson figured he could use the power of the press to persuade girl-friend Ann Batcher, poised hopefully on the brink of accepting his matrimonial proposal, to take the plunge."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "It could have been an All-State tackle, but it was girls basketball at its best in Lindsay last weekend."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Sherri Salyer of Stroud makes a first down for the East in a rough-and-tumble girls All-State basketball game at Lindsay despite the efforts of West guard Betty Pefter."

A daylight photograph taken at an apartment complex fire in Oklahoma City, Oklahoma County, Oklahoma. The image shows firemen under and on a stairway as water used to extinguish the fire falls down upon them. Caption: "Fire and roof drainage problem combined Thursday afternoon to caused an estimated $7,500 damage to an Oklahoma City apartment complex."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Enrollment for summer classes and the beginning of school was scheduled this week at Oscar Rose."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Well-covered by West guard Cassandra McCurdy of McGuinness, East forward Trix Gooden of Dewar has no where to go with the basketball."

We propose a novel technique to study hadron-hadron collisions in which a significant fraction of the available energy is carried off in directions transverse to the beam. The technique is independent of the details of the final state so is ideally suited to searching for the jet-like particle clusters predicted by the parton model. The detector consists of a small calorimeter and several planes of 1 meter square proportional chambers.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Authority of the Texas Board of Chiropractic Examiners to regulate advertising by chiropractors and to enforce such regulations.

The theoretical basis and computational procedure of the VECTRA computer program are presented. VECTRA (Vorticity-Energy Code for TRansport Analysis) is designed for applying numerical simulation to a broad range of intake/discharge flows in conjunction with power plant hydrological evaluation. The code computational procedure is based on finite-difference approximation of the vorticity-stream function partial differential equations which govern steady flow momentum transport of two-dimensional, incompressible, viscous fluids in conjunction with the transport of heat and other constituents.

A scanning electron microscope (SEM) facility for the examination of tritium-containing materials is operational at Mound Laboratory. The SEM is installed with the sample chamber incorporated as an integral part of an inert gas glovebox facility to enable easy handling of radioactive and pyrophoric materials. A standard SEM (ETEC Model B-1) was modified to meet dimensional, operational, and safety-related requirements. A glovebox was designed and fabricated which permitted access with the gloves to all parts of the SEM sample chamber to facilitate detector and accessory replacement and repairs. A separate console combining the electron optical column and specimen chamber was interfaced to the glovebox by a custom-made, neoprene bellows so that the vibrations normally associated with the blowers and pumps were damped. Photomicrographs of tritiated pyrophoric materials show the usefulness of this facility. Some of the difficulties involved in the investigation of these materials are also discussed. The SEM is also equipped with an energy dispersive X-ray detector (ORTEC) and a Secondary Ion Mass Spectrometer (3M) attachments. This latter attachment allows analysis of secondary ions with masses ranging from 1-300 amu.

The authors describe a state-of-the-art automatic control system as it is used to control a manufacturing process in an explosive environment. Compact, explosion proof sensing devices and a custom designed interface to a controller input are discussed.

A device for automatic dispensing of precise amounts of finely divided solids has been developed. Precision is a function of dispensing time. Smaller than gram quantities may be dispensed at a rate of about 1/3 g/min with a precision corresponding to a weight range of about 0.001 g for a series. The process consists in moving the material with the effect of the vibratory motion of a miniature air-powered vibrator. Operation is automatically controlled by the electronic system of the weighing unit interfaced to the pneumatic dispensing device via a combination fluidic and pneumatic control system.

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