A laser system specifically designed to study the kinetics of electron-beam driven systems is described. Details of the system are given along with measurements of the electron-beam uniformity and deposition in the laser medium. Some HF laser results obtained with this system are also given.

The 200 Sand Steamflood Demonstration Project is testing an enhanced steamflooding technique in the Midway-Sunset Field, Kern County, California. This project was initiated to demonstrate the operational, recovery, and economic aspects of steamflooding a typical heavy oil reservoir which had unfavorable response to cyclic steam stimulation. A pilot test was conducted in four (4) 2.35 acre inverted seven-spot steam drive patterns, which were not fully developed with producers. As a result of the response shown by the pilot, in April 1980, work began to expand the pilot area to a total of fourteen (14) fully developed 2.35 acre inverted seven-spot patterns. Expansion to a full-scale steamflood test will consist of drilling and completing 30 producing wells and 10 steam injection wells. The reservoir contains approximately 50 million barrels of oil-in-place in a structure that lies between 400 and 700 feet in depth.

The Coolidge Solar Irrigation Facility at Coolidge, Arizona, consists of a 2136.8-m/sup 2/ (23,000-ft/sup 2/) line-focus parabolic trough collector subsystem, a 113.55-m/sup 3/ (30,000-gallon) thermal storage subsystem, and a 150-kW/sub e/ (142.2-Btu/s) organic Rankine cycle power generation unit. The performance of the facility and its operational and maintenance requirements are reported. The period from the the facility's initial operation in October 1979 to 31 August 1980 is covered.

The absolute cross sections for the single, double, triple and quadruple ionization of Cs/sup +/ ions by electron impact have been measured from below their respective thresholds to approximately 5000 eV. This determination has been accomplshed using a crossed beam facility in which monoenergetic beams of ions and electrons are caused to intersect at right angles in a well-defined collision volume. Multiply charged, product ions born as a result of the electron impact are deflected into their respective detectors by cascaded electrostatic analyzers. The multiply charged beam current component is measured by means of a vibrating reed electrometer operating in the rate-of-charge mode.

The procedures and status of the absolute measurement of the neutron capture cross sections for /sup 115/In and /sup 232/Th are described. Work on the /sup 239/Pu fission fragment anisotropy and absolute measurement of the fast neutron fission cross section for /sup 233/U are briefly described. Progress in establishing the 14 MeV neutron measurements at the facility are discussed. (WHK)

The surface layers of tokamak plasmas are strongly unstable to low frequency oscillations. The limiter, by imposing a non-axisymmetric state in the plasma scrape-off layer, may be the source of the free energy driving the instabilities. An active, two-faced sandwich limiter is proposed to symmetrize the scrape-off layer, thereby minimizing the mismatch between the inner and outer tokamak states.

This report presents the results of work performed from October 1, 1980 through December 31, 1980 on the Advanced Gas- Cooled Nuclear Reactor Materials Evaluation and Development Program.

The purpose of this research is to develop methods to process fly ash for the separation and use of an iron-rich fraction, for the recovery of metals, primarily Al and Ti, and for use of the process residues. Research during this report period of the HiChlor process for the extraction of alumina and titania by high-temperature chlorination of a fly ash-reductant mixture included investigation of the simulation of the reactions as a design tool, the assembly of a unit to measure reaction kinetic rates and particle specific surface areas and porosities, and the design of equipment to measure necessary chloride product separation data. A pretreatment chlorination reaction using CO and Cl/sub 2/ was found to be capable of removing 80% of the iron with only minimal alumina and silica reaction. Development of the lime-soda sinter process includes the collection of data on the phenomenon of auto-disintegration of lime-fly ash sinters. Results indicate that it is the presence of minor constituents having +5 pr +6 valence cations of a size that can enter the lattice of the calcium silicate which prevent sinter auto-disintegration.

Final report analyzing aerial gamma ray and magnetic data in the Davenport quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Dubuque quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Des Moines quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Fairmont quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the La Crosse quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Waterloo quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Mason City quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Beechy Pt. Quadrangle Alaska.

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Beechey Point quadrangle, Alaska. This volume contains data maps of the results.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Harrison Bay Quadrangle, Alaska

Airborne gamma-ray spectrometer and magnetometer survey of the Harrison Bay Quadrangle

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Ikpikpuk River Quadrangle, Alaska.

The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Ikpikpuk River quadrangle, Alaska. This volume contains data maps of the results.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Lookout Ridge Quadrangle, Alaska

The following report is the second volume in a series of data presenting final results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Lookout Ridge quadrangle, Alaska. This volume contains data maps of the results.

A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Meade River Quadrangle, Alaska.