23 Matching Results

Search Results

Results: 1 - 23
open access

Measurement of energy deposited by charged-particle beams in composite targets

Description: We have measured the energy deposited in two types of composite targets by a number of charged-particle beams: targets made of /sup 238/U, Lucite, and polyethylene were exposed to 0.26-GeV protons and 0.33-GeV deuterons, and aluminum-Lucite composites were exposed to 0.5-GeV electrons. In addition, we measured neutrons and gamma rays emitted from solid targets of various materials (including /sup 238/U and iron) exposed to 0.26-GeV protons and 0.33-GeV deuterons. We used passive detectors (ther… more
Date: July 2, 1980
Creator: Farley, E.; Becker, J.; Crase, K.; Howe, R. & Selway, D.
Partner: UNT Libraries Government Documents Department
open access

Transducer characterization

Description: This report has been prepared specifically for ultrasonic transducer users within the Nondestructive Testing Evaluation (NDE) community of the weapons complex. The purpose of the report is to establish an initial set of uniform procedures for measuring and recording transducer performance data, and to establish a common foundation on which more comprehensive transducer performance evaluations may be added as future transducer performance criteria expands. Transducer parameters and the problems … more
Date: July 2, 1980
Creator: Cross, B. T.; Eoff, J. M.; Schuetz, L. J. & Cunningham, K. R.
Partner: UNT Libraries Government Documents Department
open access

High-power pulsed lasers

Description: The ideas that led to the successful construction and operation of large multibeam fusion lasers at the Lawrence Livermore Laboratory are reviewed. These lasers are based on the use of Nd:glass laser materials. However, most of the concepts are applicable to any laser being designed for fusion experimentation. This report is a summary of lectures given by the author at the 20th Scottish University Summer School in Physics, on Laser Plasma Interaction. This report includes basic concepts of the … more
Date: April 2, 1980
Creator: Holzrichter, J.F.
Partner: UNT Libraries Government Documents Department
open access

Seismic hazard analysis for the NTS spent reactor fuel test site

Description: An experiment is being directed at the Nevada Test Site to test the feasibility for storage of spent fuel from nuclear reactors in geologic media. As part of this project, an analysis of the earthquake hazard was prepared. This report presents the results of this seismic hazard assessment. Two distinct components of the seismic hazard were addressed: vibratory ground motion and surface displacement. (ACR)
Date: May 2, 1980
Creator: Campbell, K.W.
Partner: UNT Libraries Government Documents Department
open access

Materials selection of surface coatings in an advanced size reduction facility. [For decommissioned stainless steel equipment]

Description: A materials selection test program was conducted to characterize optimum interior surface coatings for an advanced size reduction facility. The equipment to be processed by this facility consists of stainless steel apparatus (e.g., glove boxes, piping, and tanks) used for the chemical recovery of plutonium. Test results showed that a primary requirement for a satisfactory coating is ease of decontamination. A closely related concern is the resistance of paint films to nitric acid - plutonium en… more
Date: June 2, 1980
Creator: Briggs, J. L. & Younger, A. F.
Partner: UNT Libraries Government Documents Department
open access

Interim report on concreted uranium fines and chips billet curing tests: a basis for resuming shipment of concreted uranium scrap billets

Description: Through extensive testing and analyses of the concretion process, billets and shipping conditions, it has been determined that properly cured concreted billets can be safely shipped to National Lead Company of Ohio (NLO), Fernald. During curing, billets will be dried for 26 days prior to shipment with the last 10 days between 54 to 66/sup 0/C (130 to 150/sup 0/F). Such dried billets can withstand temperatures up to 85/sup 0/C (185/sup 0/F). The maximum billet temperature that can be expected to… more
Date: May 2, 1980
Creator: Weakley, E.A.
Partner: UNT Libraries Government Documents Department
open access

Quality engineering and control. Semiannual progress report, November-December 1978, January-April 1979. [PCB]

Description: This document reports the following: atomic absorption spectroscopy of Ir in Pu-Ir alloys; removal of Pu from soil; surface microanalysis using elemental x-ray mapping; microscopic scanning of Ga in Pu; microscopy of defects in Pu; emission spectroscopy of Ir and Y in PuO/sub 2/; gas chromatograhy of PCB's in transformer oils and water; liquid chromatography of chlorophenoxy acid herbicides in water; solution analysis by spark source mass spectrometry; a portable gas sampling system; flamm… more
Date: August 2, 1980
Creator: Carpenter, R. L.
Partner: UNT Libraries Government Documents Department
open access

Experimental test accelerator: description and results of initial experiments

Description: The ETA is a high current (10,000 Amp) linear induction accelerator that produces short (30 ns) pulses of electrons at 5 MeV twice per second or in bursts of 5 pulses separated by as little as one millisecond. At this time the machine has operated at 65% of its design current and 90% of the design voltage. This report contains a description of the accelerator and its diagnostics; the results of the initial year of operation; a comparison of design codes with experiments on beam transport; and a… more
Date: June 2, 1980
Creator: Fessenden, T.; Birx, D. & Briggs, R.
Partner: UNT Libraries Government Documents Department
open access

Analytical qualification of system identification (modal analysis) codes for use in the dynamic testing of nuclear power plant structures

Description: The analytical evaluation of two particular system identification codes used at Lawrence Livermore Laboratory is presented. Both codes are eigenparameter identification codes; however, one uses a time domain approach while the other a frequency domain approach. The evaluation was accomplished by analytically generating several time history signals in which the true modal parameters were known. These time histories ranged from widely spaced modes with spacing factors of 100 percent to closely sp… more
Date: January 2, 1980
Creator: Weaver, H.J.; Ng, D. & Lager, D.
Partner: UNT Libraries Government Documents Department
open access

Some comments on the Shiva spaceframe earthquake damage

Description: On January 24, 1980, at 11:00 a.m., an earthquake, measuring 5.5 on the Richter scale, shook the Livermore Valley. There were three very pronounced shocks, the first at 5.5 followed by two, one at 5.2 and the other at 4.8, on the Richter scale. The Shiva spaceframe was shaken out of alignment. Shiva consists of two frames, a laser frame and a target frame. Components on each frame stayed within alignment with respect to each other, but the target frame moved with respect to the laser frame. She… more
Date: June 2, 1980
Creator: Hurley, C.A.
Partner: UNT Libraries Government Documents Department
open access

Comparative assessment of five potential sites for magma: hydrothermal systems - geophysics

Description: As part of a comparative assessment for the Continental Scientific Drilling Program, geophysical data were used, to characterize and evaluate potential magma-hydrothermal targets at five drill sites in the western United States. The sites include Roosevelt Hot Springs, Utah, the Rio Grande Rift, New Mexico, and The Geysers-Clear Lake, Long Valley, and Salton Trough areas, California. This summary discusses the size, depth, temperature, and setting of each potential target, as well as relvant sc… more
Date: September 2, 1980
Creator: Kasameyer, P.
Partner: UNT Libraries Government Documents Department
open access

Determination of the radius of a self-pinched beam from its energy integral

Description: The total transverse energy (kinetic plus potential) of a self-pinched beam may be used to predict the final equilibrium radius when the beam is mismatched at injection. The dependence of potential energy on the current profile shape is characterized by a dimensionless parameter C(z), variations of which are correlated with the change of emittance.
Date: January 2, 1980
Creator: Lee, Edward P.
Partner: UNT Libraries Government Documents Department
open access

Investigation into continuous acoustic emission monitoring of BWR components. Semi-annual report

Description: This report covers the work accomplished during the eight month period from October 1, 1977 through June 1, 1978. During this period, Peach Bottom Unit 3 was operational for the first six months and was shutdown for a refueling outage for the last two months. During the refueling outage, removal, recalibration, refurbishment, and reinstallation of all the AE instrumentation was performed. The coupling efficiency and the sensitivity of the sensors did not vary significantly with time. 5600 AE ev… more
Date: June 2, 1980
Creator: McElroy, J W
Partner: UNT Libraries Government Documents Department
open access

Sausage mode stability boundaries: enumeration and verification

Description: An axially symmetric sausage mode instability has been observed using particle simulation codes to propagate beams with a high degree of current neutralization. In this report the stability boundaries in terms of the magnitude and location of the return current are delineated for beams with square, Gaussian, and Bennett radial current profiles using the theoretical analysis of others. For the case in which the return current is held fixed as the beam propagates, a detailed comparison is made be… more
Date: December 2, 1980
Creator: Chambers, F.W.
Partner: UNT Libraries Government Documents Department
open access

Precooler Ring Vacuum System

Description: The precooler vacuum system, as proposed by FNAL, is based on a suitable modification of the existing Electron Cooling Ring System. Because of the magnetic cycle of the bending magnets, distributed ion pumping, as exists in the Electron Cooling Ring, is not applicable. Instead, the proposed pumping will be done with commercial appendage ion pumps mounted approximately every two meters around the circumference of the ring. The loss of effective pumping speed and non-uniformity of system pressure… more
Date: October 2, 1980
Creator: Moenich, J.
Partner: UNT Libraries Government Documents Department
open access

Largest irrigated district in the world

Description: The geothermal administration report includes the following: status of transfer of Imperial Valley Environmental Project, status of data cataloging and storage, findings of geothermal field inspections, status of cooperative efforts between industry and the County for commercialization, problems in local geothermal commercialization and recommendations for action, and the status of geothermal exploration development and production in the County. The number and types of applications for geotherm… more
Date: October 2, 1980
Partner: UNT Libraries Government Documents Department
open access

Hydrogen attack of steel. Progress report, April 1, 1979-March 31, 1980

Description: The objective of this work is to establish the atomic processes by which the hydrogen attack of pressure vessel steel occurs. The approach is to follow the growth kinetics using an exceptionally sensitive dilatometer and to compare these data with the predictions of models based on the postulated mechanisms. This is supplemented by scanning electron microscope (SEM) studies to establish the geometry and location of the growing methane bubbles. The steels used have been various commercial alloys… more
Date: January 2, 1980
Creator: Shewmon, P. G.
Partner: UNT Libraries Government Documents Department
open access

Tandem mirror thermal barrier experimental program plan

Description: This report describes an experimental plan for the development of the Tandem Mirror Thermal Barrier. Included is: (1) a description of thermal barrier related physics experiments; (2) thermal barrier related experiments in the existing TMX and Phaedrus experiments; (3) a thermal barrier TMX upgrade; and (4) initiation of investigations of axisymmetric magnetic geometry. Experimental studies of the first two items are presently underway. Results are expected from the TMX upgrade by the close of … more
Date: January 2, 1980
Creator: Coensgen, F. H.; Drake, R. P. & Simonen, T. C.
Partner: UNT Libraries Government Documents Department
open access

Soviet Policy Toward the Third World

Description: Vladimir Lenin, the founder of the Soviet state, provided the ideological underpinning for Soviet Third world policy. Be believed that the developing nations, most of which were still part of European colonial empires, were the "weakest link in the capitalist empires and that revolution along these nations would undermine the military and economic power of the West- In 1920, he called on all Communist parties to support these revolutions, but Soviet Russia at that time vas involved in its own c… more
Date: April 2, 1980
Creator: Cooper, William H.
Partner: UNT Libraries Government Documents Department
open access

Afghanistan: Soviet Invasion and U.S. Response

Description: The Soviet invasion of Afghanistan has raised a number of serious issues and choices for the United States. The train of events seem likely to have an important influence on overall American foreign policy in the 1980s. Reassessment of Soviet motives and of U.S. roles in the world are already in progress. Emerging American attitudes, in turn, will shape more specific policy decisions on several issues, which this issue brief discusses.
Date: May 2, 1980
Creator: Library of Congress. Foreign Affairs and National Defense Division.
Partner: UNT Libraries Government Documents Department
open access

Report on SARS backfit evaluation, Catalytic, Inc. Solvent Refined Coal Pilot Plant, Wilsonville, Alabama

Description: A site visit was made in company with the DOE-OPTA-EA Safety and Health Official for the purpose of providing that official with technical assistance in evaluating the validity of an earlier DOE-OPTA recommendation exempting this facility from the Safety and Analysis and Review backfit requirements of DOE Order 5481.1. A further purpose of the visit was to assess and evaluate the occupational safety and health program at this facility, as compared with the criteria and guidelines contained in A… more
Date: July 2, 1980
Creator: Meyer, A. F., Jr.
Partner: UNT Libraries Government Documents Department
open access

Report on SARS backfit evaluation, Exxon Donor Solvent Plant, Baytown, Texas

Description: This report provides information on observations, findings, and conclusions arising from a site visit to the Exxon Donor Solvent Plant, Baytown, Texas. That visit was to provide technical assistance and professional services to the DOE/ASFE/OPTA Project Officer regarding verification of his initial determination that this pilot plant is exempt from the SARS backfit requirement (DOE Order 5481.1). A secondary purpose was to obtain further information regarding the occupational safety and health … more
Date: July 2, 1980
Creator: Meyer, A. F., Jr.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen