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Nuclear safety guide TID-7016 Revision 2

Description: The present revision of TID-7016 Nuclear Safety Guide is discussed. This Guide differs significantly from its predecessor in that the latter was intentionally conservative in its recommendations. Firmly based on experimental evidence of criticality, the original Guide and the first revision were considered to be of most value to organizations whose activities with fissionable materials were not extensive and, secondarily, that it would serve as a point of departure for members of established nu… more
Date: January 1, 1980
Creator: Thomas, J T
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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INEX simulations of the optical performance of the AFEL

Description: The AFEL (Advanced Free-Electron Laser) Project at Los Alamos National Laboratory is presently under construction. The project's goal is to produce a very high-brightness electron beam which will be generated by a photocathode injector and a 20 MeV rf-linac. Initial laser experiments will be performed with a 1-cm-period permanent magnet wiggler which will generate intense optical radiation near a wavelength of 3.7 {mu}m. Future experiments will operate with slotted-tube'' electromagnetic wiggle… more
Date: January 1, 1991
Creator: Goldstein, J.C.; Wang, T.S.F. & Sheffield, R.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Surprising patterns of CMOS susceptibility to ESD and implications on long-term reliability

Description: CMOS electrostatic discharge (ESD) failures in a product where, by design, the device input terminals are not accessible to ESD led to this study of device susceptibility and an analysis of the long-term reliability of devices in assemblies from that production line. Some surprising patterns of device susceptibility are established and it is shown that the probability of long-term failure in devices whose electrical characteristics have been degraded by electrostatic discharge is small.
Date: January 1, 1980
Creator: Schwank, J.R.; Baker, R.P. & Armendariz, M.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Generation of coherent soft x-rays using a single-pass free-electron laser amplifier

Description: We consider a single-pass free-electron laser (FEL) amplifier, driven by an rf-linac followed by a damping ring for reduced emittance, for use in generating coherent light in the soft x-ray region. The dependence of the optical gain on electron-beam quality, studied with the three-dimensional FEL simulation code FELEX, is given and related to the expected power of self-amplified spontaneous emission. We discuss issues for the damping ring designed to achieve the required electron beam quality. … more
Date: January 1, 1987
Creator: Wang, T. F.; Goldstein, J. C.; Newmam, B. E. & McVey, B. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of a low intensity current monitor system

Description: This report documents the development of a current transformer system used to measure pulsed ion beam currents with a wide dynamic intensity range (nA to mA, and factor of 10{sup 6}). Peak beam currents at the LAMPF accelerator typically range from 100 to nA to 40 mA with pulse widths varying from 30 to 1000 {mu}s. Signal conditioning of the peak current output provides an average current readout with a range of 1 nA to 2 mA, noise of approximately {plus minus}0.5 nA, and accuracy of {plus minu… more
Date: January 1, 1991
Creator: Gallegos, F.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Manipulator comparative testing program

Description: The Manipulator Comparative Testing Program examined differences among manipulator systems from the United States and Japan. The manipulator systems included the Meidensha BILARM 83A, the Model M-2 of Central Research Laboratories Division of Sargent Industries (CRL), and the GCA Corporation PaR Systems Model 6000. The site of testing was the Remote Operations Maintenance Demonstration (ROMD) facility, operated by the Fuel Recycle Division in the Consolidated Fuel Reprocessing Program at the Oa… more
Date: January 1, 1986
Creator: Draper, J. V.; Handel, S. J.; Sundstrom, E.; Herndon, J. N.; Fujita, Y. & Maeda, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Aging Aircraft NDI Development and Demonstration Center (AANC): An overview

Description: A major center with emphasis on validation of nondestructive inspection techniques for aging aircraft, the Aging Aircraft NDI Development and Demonstration Center (AANC), has been funded by the FAA at Sandia National Laboratories. The Center has been assigned specific tasks in developing techniques for the nondestructive inspection of static engine parts, assessing inspection reliability (POD experiments), developing test beds for nondestructive inspection validation, maintaining a FAA library … more
Date: January 1, 1991
Creator: Walter, P. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Condensation in a two-phase pool

Description: We consider the case of vapor condensation in a liquid pool, when the heat transfer is controlled by heat losses through the walls. The analysis is based on drift flux theory for phase separation in the pool, and determines the two-phase mixture height for the pool. To our knowledge this is the first analytical treatment of this classic problem that gives an explicit result, previous work having established the result for the evaporative case. From conservation of mass and energy in a one-dimen… more
Date: January 1, 1991
Creator: Duffey, R.B. (Brookhaven National Lab., Upton, NY (United States)) & Hughes, E.D. (EG and G Idaho, Inc., Idaho Falls, ID (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of valence-electron structures of Y/sub 3/Al/sub 5/O/sub 12/(YAG) and Al/sub 2/O/sub 3/, Cr/sub 2/O/sub 2/ (Ruby), a study of certain properties of these laser materials related to their valence-electron structures

Description: A direct method of determination of the valence-electron structure from its crystal structure has been presented by the writer at XIIth International Congress of Crystallography, at Ottawa, 1981. Here the method is applied to determine the valence-electron structures of Y/sub 3/Al/sub 5/O/sub 12/ (YAG) and Al/sub 2/O/sub 3/, Cr/sub 2/O/sub 3/ (ruby) to see how certain properties of these laser materials are related to their valence-electron structures. The first point observed is the very stron… more
Date: January 1, 1982
Creator: Yu, S. H. & Yu, L. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Role of diagnostic testing in identifying and resolving dimensional-stability problems in electroplated laser mirrors

Description: The metal mirrors which are the subject of this discussion are to be used in the Antares inertial fusion laser system. Antares is a high-power (40 TW), high-energy (35 to 40 kJ), pulsed CO/sub 2/ laser system for the investigation of inertial confinement fusion. The system contains more than four hundred small and large diamond-turned and conventionally polished mirrors. The largest mirrors are trapezoidal in shape with the longest dimension being 16 to 18 inches. The substrates are type 2124 a… more
Date: January 1, 1982
Creator: Cutler, R.L. & Hogan, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of potential uses for the residue from fluidized bed combustion processes. Quarterly technical progress report, June-August 1980

Description: The following conclusions are recorded: The road base mixes in which quartz silica was substituted for the pulverized coal fly ash gave compressive strengths similar to those using the pulverized coal fly ash. The compressive strengths of road base mixes using recently produced AFB residue were of the same order of magnitude as those obtained in 1977, although the data covers a broad range of test results. Briquettes, produced from a number of trial mixes, show promise as a synthetic aggregate.… more
Date: January 1, 1980
Creator: Minnick, L.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Factors affecting visual inspection of thin film network

Description: A study was made of various factors that affect the visual inspection of thin film networks. The effect of various types of reflected illumination, the effect of defect size or shape, the time required for inspection, and the inspection uniformity were evaluated. The use of polarized light is recommended for the visual inspection of thin film networks.
Date: January 1, 1978
Creator: Hines, R.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation on the damage threshold of films coated on various silicate, fluorophosphate and phosphate laser glasses. Final report, January 1, 1979-August 29, 1980

Description: Effects of substrate laser glass on the damage threshold and adhesion of dielectric films has been studied in order to improve the damage threshold. The study is divided into two parts: the first part dealing with four types of laser glass, LSG-91H silicate, LHG-8 phosphate, P-1 phosphate and LHG-10 fluorophosphate; the second part dealing with twenty-six glasses with systematically modified compositions in three glass systems, silicate, phosphate and fluorophosphate.
Date: January 1, 1980
Creator: Nakajima, Y & Izumitani, T
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Long term materials test program. Quarterly report, April-June 1983

Description: Corrosion and erosion/corrosion testing of gas turbine materials in the effluent from a pressurized fluidized bed coal combustor continues under the Long Term Materials Test program. Two 1000-hour erosion/corrosion screening tests of twelve candidate gas turbine vane and blade base alloys and a variety of protective coating systems have been completed. Test conditions included 1350/sup 0/F, 800 to 900 ft/s and particulate loadings of 30 to 90 ppM. Erosion/corrosion degradation rates of 1 to 4 m… more
Date: January 1, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Optimized design and predicted performance of a deep ocean 50 m piston coring system

Description: Calculational techniques are described which were developed or adapted for the purpose of analyzing the mechanical response of a proposed piston coring system capable of recovering high quality 50 m long cores. The analysis includes the effects of barrel geometry on the mass required to penetrate 50 m of an assumed sediment, the effects of non-vertical entry and pullout on the stresses within the barrel, and the effects of steel cable or parachute piston restraints on the resulting core sample … more
Date: January 1, 1980
Creator: Karnes, C. H.; Burchett, S. N. & Dzwilewski, P. T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Efficient forward conversion in a Raman generator

Description: Stimulated Raman scattering of an XeCl laser at 308 nm in a high pressure H/sub 2/ cell shows anomalously high conversion into first Stokes (S1) when a pumping geometry with a Fresnel number near unity is used. Specifically a quantum efficiency of 88% is obtained into S1. Comparison with a plane-wave model indicates that a theory including diffraction and 4-wave mixing may be necessary to understand the anomalous holdoff of the second Stokes component. 10 references.
Date: January 1, 1984
Creator: Carlsten, J.L.; Telle, J.M. & Wenzel, R.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Examples of robots and teleoperators at the Savannah River Site

Description: The Savannah River Site manufactures nuclear materials for the US Department of Energy. In recent years robots and mobile teleoperators have been used to reduce the radiation exposure of personnel at this site. Two examples of robots that have significantly reduced radiation exposure are the Shielded Cells Waste Handling Robot and the Shielded Cells Sample Handling Robot. The Shielded Cells Waste Handling Robot has been in operation for over four years. It removes cans of radioactive waste from… more
Date: January 1, 1989
Creator: Ward, C. R.; Heckendorn, F. M. & Vandewalle, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Investigation of leaks in fiberglass-reinforced pressure vessels by direct observation of hollow fibers in glass cloth

Description: A simple method of visual observation of hollow fibers within fiberglass cloth has been developed. This visualization can aid in determining the contribution these fibers make toward leaks observed in fiberglass-reinforced epoxy resin pressure or vacuum vessels. Photographs and frequency data of these hollow fibers are provided. 3 figs.
Date: January 1, 1988
Creator: McAdams, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Fresh-Bunch' technique in FELs

Description: The 'Fresh Bunch' technique is being proposed as a method of increasing the gain and power of FEL amplifiers in which the length of the optical radiation pulse is shorter than the length of the electron bunch. In multi-stage FEL, electron beam energy spread is increased by the FEL interaction in the early stages. In the 'Fresh Bunch' technique, the low energy spread of the electron beam is recovered by shifting the radiation pulse to an undisturbed part of the electron bunch, thus improving the… more
Date: January 1, 1991
Creator: Ben-Zvi, Ilan; Yang, K. M. & Yu, L. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Kilowatt Isotope Power System: Test Procedure for the Radiator Long and Short Panels. 77-KIPS-111

Description: The objective of this document is to outline the procedure for conducting development tests of sections of the KIPS space radiator. The results of these tests will be utilized to determine the final design and anticipated performance characteristics of the full size ground demonstration system (GDS) radiator. This procedure is applicable to the tests planned for the short panel radiator test assembly (KIPS104000-009) and for the long panel radiator test assembly (KIPS104000-019). The test data … more
Date: January 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ultrasonic inspection techniques for two weld closures proposed for RSSF waste storage casks

Description: One method being considered for interim storage of high-level radioactive waste materials is to place these materials in large sealed stainless steel canisters and subsequently store these canisters in a second sealed steel storage cask. Weld procedures are proposed as the closure or seal for these vessels. Inspection of these closures to assure initial and long-term integrity of the closure welds presents a challenge to nondestructive testing. The environment is thermally (400 to 1000/sup 0/F)… more
Date: January 1, 1978
Creator: Doctor, S. R. & Morris, C. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Wiggler, undulator, and free-electron laser-radiation sources development at the National Synchrotron Light Source

Description: An overview is presented of the special radiation sources development at the NSLS for incorporation in a 2.5 GeV X-ray storage ring and a 700 MeV vuv storage ring. This includes a superconducting high field multipole wiggler, lambda/sub c/ = 0.5A; a permanent magnet wiggler, lambda/sub c/ = 2.0A; a maximum photon energy undulator (5 to 7 keV); an undulator for a soft X-ray line or continuum spectrum and a free electron laser source tunable in the 2500 to 4500A region. Source characteristics and… more
Date: January 1, 1982
Creator: Hsieh, H.; Krinsky, S.; Luccio, A.; Pellegrini, C. & van Steenbergen, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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