7 Matching Results

Search Results

Results: 1 - 7
open access

Flash x-ray. [Nondestructive testing of material that is moving or changing very rapidly]

Description: The complementary techniques of flash x-ray radiography (FXR) and flash x-ray diffraction (FXD) provide access to a unique domain in nondestructive materials testing. FXR is useful in studies of macroscopic properties during extremely short time intervals, and FXD, the newer technique, is used in studies of microscopic properties. Although these techniques are similar in many respects, there are some substantial differences. FXD generally requires low-voltage, line-radiation sources and extreme… more
Date: September 7, 1976
Creator: Johnson, Q. & Pellinen, D.
Partner: UNT Libraries Government Documents Department
open access

Computing unit: a measure of total computer utilization

Description: The basis on which charges are calculated for use of computers at LBL is explained. CPU time, I/O requirements, and memory utilized are among the primary factors considered. (RWR)
Date: December 7, 1976
Creator: Stevens, D. F. & White, H. S.
Partner: UNT Libraries Government Documents Department
open access

Assessment of very high temperature reactors in process applications

Description: In April 1974, the United States Energy Research and Development Administration (ERDA) authorized General Atomic Company, General Electric Company, and Westinghouse Astronuclear Laboratory to assess the available technology for producing process heat utilizing a very high temperature nuclear reactor (VHTR). The VHTR is defined as a gas-cooled graphite-moderated reactor. Oak Ridge National Laboratory has been given a lead role in evaluating the VHTR reactor studies and potential applications of … more
Date: April 7, 1976
Creator: Jones, J. E. Jr.; Spiewak, I. & Gambill, W. R.
Partner: UNT Libraries Government Documents Department
open access

MHSS: a material handling system simulator

Description: A Material Handling System Simulator (MHSS) program is described that provides specialized functional blocks for modeling and simulation of nuclear material handling systems. Models of nuclear fuel fabrication plants may be built using functional blocks that simulate material receiving, storage, transport, inventory, processing, and shipping operations as well as the control and reporting tasks of operators or on-line computers. Blocks are also provided that allow the user to observe and gather… more
Date: April 7, 1976
Creator: Pomernacki, L. & Hollstien, R. B.
Partner: UNT Libraries Government Documents Department
open access

Collective behavior in recent laser-plasma experiments

Description: The absorption of 1.06 ..mu.. light focused on small C/sub 8/H/sub 8/ discs has been measured in the intensity range of 10/sup 15/ - 10/sup 17/ W/cm. The data confirms the importance of collective plasma effects in determining the absorption of intense light. The measured absorption efficiencies are in the range of 30 to 40 percent, and the scattered light has a polarization dependence. The measured absorptions are shown to be inconsistent with classical inverse bremsstrahlung. Both the magnitu… more
Date: June 7, 1976
Creator: Kruer, W. L.; Haas, R. A.; Mead, W. C.; Phillion, D. W. & Rupert, V. C.
Partner: UNT Libraries Government Documents Department
open access

Assessment of a chemical getter for scavenging tritium from an inert gas

Description: Results are presented of a study aimed at determining the feasibility of using chemical getter beds to scavenge tritium from inert gases. Two types of getter bed, fixed and fluidized, were considered, using cerium as the getter material. Mathematical-modeling results and capital-cost estimates indicate that not only is the gettering approach technically feasible, it could lead to considerable cost savings over catalytic oxidation, the tritium-removal method traditionally used.
Date: May 7, 1976
Creator: Maienschein, J. L.
Partner: UNT Libraries Government Documents Department
open access

Vacuum engineering for fusion research and fusion reactors

Description: The following topics are described: (1) surface pumping by cryogenic condensation, (2) operation of large condensing cryopumps, (3) pumping for large fusion experiments, and (4) vacuum technology for fusion reactors. (MOW)
Date: September 7, 1976
Creator: Pittenger, L. C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen