Liquid-nitrogen-cooled liners have been installed in the neutral-beam source tanks of 2XIIB. The installation has resulted in improvements in vacuum pumping, although testing is not complete. The liners are stainless-steel-flooded-type liners, using spot-welded-and-inflation construction. The natural-convection flow system must keep the liners cold during the high heat loads imposed during Ti gettering.

The composition of a thorium metal surface has been monitored using Auger electron spectroscopy following Ar/sup +/ bombardment at different temperatures. After extended Ar/sup +/ bombardment, enough contaminated overlayers were removed to expose a surface region containing only thorium, bulk impurities, and imbedded argon. The main impurities, carbon and oxygen, differed in their behavior when the sample was annealed following bombardment. The amount of surface carbon either increased or remained constant during annealing depending upon the temperature of the sample during bombardment. The amount of surface oxygen decreased rapidly when the sample was heated above 500/sup 0/C regardless of the sample temperature during bombardment. These experiments indicate that preparation of clean, annealed thorium surfaces requires ion bombardment at temperatures > or = 400/sup 0/C.

This manual provides rough guidelines to aid a programer in installing ADBMS at a computer installation. ADBMS is a set of subroutines which together form a nucleus of a CODASYL-based data base management system. The use of this system is explained in detail in ''ADBMS Users Guide'' by E.W. Berss, Lawrence Livermore Laboratory, Feb. 1977.

The following are described: oscillator/preamp alignment; chain input pointing; spatial filter pinhole alignment; output pointing, focusing, and centering system; and alignment controls. (MHR)

The Memory Map Unit (MMU) provides the capability for an Interdata 7/16 computer with High Speed Arithmetic Logic Unit (HSALU) to operate with up to 256K bytes of memory (1K = 1024). Memory addresses, consisting of 16 bits, are mapped into 18 bits whenever a memory cycle occurs. Mapping occurs by 1K pages; selectable low-address areas are not mapped. 4 figures.

The injector system for the Tandem Mirror Experiment (TMX) contains the components required to create and maintain a high-temperature, high-density plasma. These components include a streaming-plasma gun in each of the plug tanks to form the target-plasma, 24 neutral-beam source modules for injecting neutral deuterium atoms to heat and replace losses from the plasma, and a gas box system that applies a streaming cold gas to the plasma to stabilize it. This paper discusses the mechanical design problems and solutions for this injector system.

The status of a program to determine the feasibility of a lithium--air battery (or an analog) as an automotive power source is summarized. Anticipated performance of characteristics (including efficiency and voltage) of the battery and the lithium recycling process are described. A calcium/aqueous-electrolyte combination was discovered which shows electrode behavior similar to that of Li. 2 figures, 2 tables.

Computations have been made of the parameters of a neutral-beam driven, field-reversed mirror reactor as a function of beam injection energy. Q values of 4 to 5 and a fusion power of 10 to 50 MW per cell are found at beam energies of 200 to 500 keV. Cost estimates indicate a direct capital cost of less than $1000/kW/sub e/ for multicell versions of the reactor.

Rocky Flats Plant has received a contract from the Savannah River Operations Office of the U.S. Energy Research and Development Administration (ERDA) to critically analyze and evaluate existing technology for converting plutonium nitrate to plutonium oxide, and to recommend improved flow sheets and equipment for this process. Information will be provided to produce a conceptual design and cost study for a plutonium nitrate conversion facility usable in a Light Water Reactor (LWR) fuel recycle plant. A program plan has been written detailing the technical approach, the expected results, and personnel utilization. During the fourth quarter of FY 1976 the basis for comparison and selection of existing conversion processes will be defined, a literature search will be made for conversion processes, and contacts will be made with ERDA contractors and those in private industry who have knowledge of conversion processes.

The City of Miamisburg plans to modify two existing small ponds just west of Mound Laboratory in the Community Park. The north pond will be deepened and made into a solar energy pond to heat a bath house and swimming pool, and the south pond will be deepened and made into a fishing pond. Because the sediment in both ponds contains small amounts of plutonium and will be moved during the modifications, this work has been reviewed for potential health and safety impacts. This analysis covered the health and safety of the public on a long-term basis and of the workers involved in the short-term modifications. The doses to man, both long and short term, were calculated for all routes of entry into the body including inhalation, ingestion, and absorption where applicable. In the preparation of this analysis, very conservative assumptions were utilized. The conclusion in all cases was the same: the potential radiation exposures represent no significant risk to the health and safety of the construction workers or the park visitors. The improvements to be made in the park involve mixing and dilution of the existing sediments with other soils, providing further reductions in the calculated radiation doses to …

At normal incidence, the back scattered, forward scattered and 90/sup 0/ scattered cross sections of the beam were measured at 24 GHz for air and nitrogen at 500 torr pressure. For a single pulse, the measured radius of the beam was 4.3 mm at Z = 80 cm, whereas in a burst the radius decreased to 2.5 mm for the fifth pulse. This corresponds to a density reduction of a factor of 5 and corresponds to a channel temperature of 1200/sup 0/C. Within experimental error, the observed cross sections were those to be expected from a metal rod of these dimensions. There was no evidence of any enhancement in cross section at long times as might be expected from a hydrodynamic channel instability. However, receiver noise would have masked any fluctuations present. The cross sections were also measured with the microwave beam forming an angle of 10/sup 0/ with the electron beam. The backscatter cross section and the bistatic cross section to a second antenna forming an angle of 10/sup 0/ with the beam was also measured. In air, the bistatic and monostatic cross sections were approximately 10 db higher than expected from the beam size measurement, i.e, the returns …

Experimental research in high energy physics is summarized. (JFP)

Methodology in use in the Imperial Valley for assessing the potential impact on air quality that may result from the development of geothermal resources is discussed. The installation of a network of air quality stations for characterizing the air quality and atmospheric transport properties in the valley prior to development is discussed. Analyses of geothermal fluids for various gases are performed to evaluate the potential emission rates from future geothermal power plants. The principal pollutant of concern is H/sub 2/S because of its noxious odor and potential release rate. These estimated source emission rates and the appropriate meteorological measurements are used as input to a three-dimensional, atmospheric transport code to estimate the potential changes in air quality that result from various scenarios for development of geothermal power.

Evaluation procedures used to produce sets of evaluated data for the 33 heavy isotopes that fall in the range Z = 90 to Z = 98 are described. At the beginning of the discussion for each individual isotope, a computer-generated listing is given which summarizes the main properties of the data sets that are contained in the evaluation. (RWR)

Estimates of maximum acceptable temperatures of waste and containers during retrievable geologic storage were needed for use in evaluating and comparing conceptual designs for repositories for wastes from reprocessing and for spent fuel in several different rock types. Estimates of these temperatures and discussions of the bases for the estimates are presented.

A preliminary model of photosynthesis and growth of field crops was developed to assess the effects of gaseous pollutants, particularly airborne sulfur compounds, resulting from energy production from geothermal resources. The model simulates photosynthesis as a function of such variables as irradiance, CO/sub 2/ diffusion resistances, and internal biochemical processes. The model allocates the products of photosynthesis to structural (leaf, stem, root, and fruit) and storage compartments of the plant. The simulations encompass the entire growing season from germination to senescence. The model is described conceptually and mathematically and examples of model output are provided for various levels of pollutant stress. Also, future developments that would improve this preliminary model are outlined and its applications are discussed.

Work is being done at the Rocky Flats Plant under contract from the Savannah River Operations Office (SROO) of the U.S. Energy Research and Development Administration (ERDA) to critically analyze and evaluate existing technology for converting plutonium nitrate to plutonium oxide, and to recommend flow sheets and equipment for this process. This report details a plan for selecting the most suitable process using presently developed technology. In addition, the scope-defining assumptions and the criteria to be used for comparing the processes are defined. The criteria will be used to select a primary and several alternative processes for conversion of plutonium nitrate to plutonium oxide in reprocessing light water reactor (LWR) fuel.

Characteristics have been measured for the Varian VPM-154D.6D and VPM-154A/1.6L Static Crossed Field Photomultipliers. Some typical photomultiplier characteristics such as: gain, dark current, quantum efficiency, and rise-time--are compared with data provided by the manufacturer. Photomultiplier characteristics generally not available from the manufacturer, such as: transit time, FWHM of the output pulse, peak output current measurement and multiphotoelectron time resolution were measured and are discussed.

The DT fusion neutron irradiation of one LLL superconductor wire and one LLL Nb/sub 3/Sn foil at 4.2/sup 0/K is described. The sample position, beam-on time, and neutron dose record are given. The results from two ''profile'' dosimetry foils measuring the lateral variation in neutron flux are included.

The commercial aspects of laser fusion were evaluated in an attempt to relate the end products (neutrons and energy) to significant commercial applications. It was found that by far the largest markets and highest payoffs for laser fusion are associated with electric power production. Hence, much of this report evaluates the prospects of producing commercial electricity with laser fusion. To this end, we have described in detail a new and promising laser fusion concept--the liquid lithium waterfall reactor. In addition, we have taken the most attractive features from our laser studies and used them to compare laser fusion to other long-range sources of energy (breeder reactors and solar energy). It is our contention that all three sources of electrical energy should be developed to the point where the final selections are primarily based on economic competitiveness. The other potential applications of laser fusion (fissile fuel production, synthetic fuel production, actinide burning, and propulsion) are also discussed, and our preliminary plan for the engineering development of laser fusion is presented.

In the past few months, detailed experimental data have become available on laser light absorption versus angle, plasma density profiles near the critical surface, and stimulated scattering processes. In the light of these experiments, it seems timely to reassess our theoretical understanding of these phenomena. A quantitative comparison of the data with current results of plasma simulations and theory is presented and the areas where further theoretical effort is called for are pointed out. Three recent experiments done at Livermore are compared with the latest theoretical and simulation results on laser-plasma interactions. The analysis covers the following areas: (1) theory of resonance absorption on a rippled critical surface, compared with an experiment on the angle and polarization dependence of absorption; (2) theory of density profile steepening, compared with holographic interferometry measurements; and (3) theory of stimulated Brillouin scattering in long density gradients, compared with reflectivity measurements for long pulse, large focal spot experiments.

The Data Director editor is a powerful, multiuser editor that will aid in the development and modification of APT part programs, assembly-language programs, and other text. Some benefits of the editor are as follows: most of the editor is reentrant, allowing several users to share it; the user can use the editor as though the entire file being edited is in memory; editing takes place on a working file so that changes are not made to the original file until desired; the editor offers a powerful command set where most commands have the same syntax. 1 table.

The Stearns-Roger Engineering Company conceptual design of ERDA's Large Scale Experiment No. 2 (LSE No. 2) is described. The various LSE's are part of ERDA's Solar Total Energy Program (STES) and a separate activity of the National Solar Thermal Power Systems Program. The object of this LSE is to design, construct, test, evaluate and operate a STES for the purpose of obtaining experience with large scale hardware systems and to establish engineering capability for subsequent demonstration projects. This particular LSE is to be located at Shenandoah, Georgia and will provide power to the Bleyle knitwear factory. The Solar Total Energy system is sized to supply 1.720 MW thermal power (both space heating and process heat) and 383.6 KW electrical power. The STES is sized for the extended knitwear plant of 3902 M/sup 2/ (42,000 sq-ft) which will eventually employ 300 people. The section on conclusions and recommendations described the baseline design recommendation, facility requirements, the solar system, power conversion system, schedules and cost, and additional candidate systems. The systems requirements analysis includes detailed descriptions and analyses of the following subtasks: load analysis, energy displacement, local laws and ordinances, life cycle cost, health and safety, environmental assessment, reliability assessment, and utility …

The Stearns-Roger Engineering Company conceptual design of ERDA's Large Scale Experiment No. 2 (LSE No. 2) is presented. The various LSEs are part of ERDA's Solar Total Energy Program (STES) and a separate activity of the National Solar Thermal Power Systems Program. The object of this LSE is to design, construct, test, evaluate and operate a STES for the purpose of obtaining experience with large scale hardware systems and to establish engineering capability for subsequent demonstration projects. This particular LSE is to be located at Shenandoah, Georgia, and will provide power to the Bleyle knitwear factory. The Solar Total Energy system is sized to supply 1.720 MW thermal power and 383.6 KW electrical power. The STES is sized for the extended knitwear plant of 3902 M/sup 2/ (42,000 sq-ft) which will eventually employ 300 people. The details of studies conducted for Phase II of the Solar Total Energy System (STES) for the conceptual design requirements of the facility are presented. Included in this section are the detailed descriptions and analyses of the following subtasks: facility concept design, system concept design, performance analysis, operation plan, component and subsystem development, procurement plan, cost estimating and scheduling, and technical and management plans. (WHK)