Office of Scientific & Technical Information Technical Reports - 21 Matching Results

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An algorithm to calculate the beam momentum distribution from flying wire profiles

Description: Horizontal flying wire measurements give beam profiles from which information about the beam momentum distribution and betatron distribution can be extracted. When calculating these beam characteristics in the past, for the matter of simplicity, the beam has been assumed Gaussian. For beam profiles which may not be Gaussian, an algorithm to obtain the general beam momentum distribution is developed using the Fourier transform to the beam profiles. Since the profile is the convolution of the mom… more
Date: July 27, 1989
Creator: Wang, X.Q.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cost reduction study for the LANL KrF laser-driven LMF design

Description: This report is in fulfillment of the deliverable requirements for the optical components portions of the LANL-KrF Laser-Driven LMF Design Cost Reduction Study. This report examines the future cost reductions that may accrue through the use of mass production, innovative manufacturing techniques, and new materials. Results are based on data collection and survey of optical component manufacturers, BDM experience, and existing cost models. These data provide a good representation of current metho… more
Date: October 27, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cryogenic Control System

Description: The control system (CS) for the cryogenic arrangement of the DO Liquid Argon Calorimeter consists of a Texas instruments 560/565 Programmable Logical Controller (PLC), two remote bases with Remote Base Controllers and a corresponding set of input/output (I/O) modules, and a PC AST Premium 286 (IBM AT Compatible). The PLC scans a set of inputs and provides a set of outputs based on a ladder logic program and PID control loops. The inputs are logic or analog (current, voltage) signals from equipm… more
Date: February 27, 1989
Creator: Goloborod'ko, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Economic Impact Analysis of the Proposed Yakima/Klickitat Fishery Enhancement Project; Preliminary Design Report, Appendix D.

Description: The objective of this study is to estimate the economic impact of the proposed Yakima/Klickitat Production Project on the local economies of the Yakima and Klickitat subbasins. The project, when operating at planned maximum production, will augment the total number of salmon and steelhead returning to the subbasins by 77,600 and will increase the sustainable terminal harvest by 55,160. These estimates do not include fish harvested in the ocean or in the mainstem Columbia. In addition to evaluat… more
Date: December 27, 1989
Creator: Mack, Richard S.; Cocheba, Donald J.; Green, Daniel & Hedrick, David W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enhancing the use of coals by gas reburning-sorbent injection

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on three coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential, wall, and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed tech… more
Date: September 27, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report no. 8-A, June 1--August 31, 1989

Description: The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on three coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential, wall, and cyclone fired. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed tech… more
Date: September 27, 1989
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The excess flux in the cosmic submillimeter background radiation and the primordial deuterium abundance

Description: Recent measurements of the cosmic background radiation (CBR) show an enhanced flux in the submillimeter regime, compared to the spectrum of a 2.7 K blackbody. Thermal Comptonization of the relic radiation by a hot nonrelativistic plasma has long been known to produce distortions in the CBR spectrum, similar to what has now been observed. Heating of the primeval plasma to temperatures T {approximately} 10{sup 6} {minus} 10{sup 8} K could result from the injection of subcosmic ray protons at epoc… more
Date: October 27, 1989
Creator: Dermer, C. D.; Guessoum, N. (Lawrence Livermore National Lab., CA (USA) & National Aeronautics and Space Administration, Greenbelt, MD (USA). Lab. for High Energy Astrophysics)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Low Temperature and Neutron Physics Studies: Final Progress Report, March 1, 1986--May 31, 1987

Description: A search for a novel coupling interaction between the Pendelloesung periodicity which is formed in a diffracting crystal and the Larmor precession of neutrons in a magnetic field has been carried out. This interaction is expected to exhibit a resonant behavior when the two spatial periodicities become matched upon scanning the magnetic field being applied to the crystal. Observations on a diffracting, perfect crystal of silicon with neutrons of wavelength 1 Angstrom show the expected resonant a… more
Date: July 27, 1989
Creator: Shull, C.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mars Rover RTG Study

Description: This report summarizes the results of a Radioisotope Thermoelectric Generator (RTG) design study conducted by Fairchild Space Company at the direction of the U.S. Department of Energy's Office of Special Applications, in support of the Mars Rover and Sample Return mission under investigation at NASA's Jet Propulsion Laboratory. Presented at the 40th Congress of the IAF, Oct. 7-13, 1989 in Torremolinos, Malaga-Spain. The paper describes the design and analysis of Radioisotope Thermoelectric Gene… more
Date: November 27, 1989
Creator: Schock, Alfred
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Microwave transport system for the MTX (Microwave Tokamak Experiment)

Description: This paper presents the design and construction, as well as the initial operation, of the Microwave Transmission System. The system consists of containment vessels, mirror boxes, mirrors, an alignment system, two turbo-molecular pump vacuum stations, and microwave source. Fifty-ns-length pulses of 6-MeV electrons pass through a free electron laser (FEL) wiggler. A 300 W extended interaction oscillator (EIO) of 140 GHz frequency supplies the seed signal for amplification in the wiggler. The elec… more
Date: September 27, 1989
Creator: Felker, B. & Ferguson, S.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MTX/ELF II (Microwave Tokamak Experiment/ Electron Laser Facility II) microwave power measurements and calibration for the 2-GW, 140-GHZ, ELF II free-electron laser (FEL)

Description: We have developed techniques for measuring the power and frequency of the Electron Laser Facility (ELF) II free-electron laser (FEL) used for plasma heating experiments on the Microwave Tokamak Experiment (MTX). We also have designed a multichannel, 140-GHz receiver capable of measuring FEL power levels from 10 mW to 0.1 {mu}W within an accuracy of {plus minus}1 dB with a 50-dB dynamic range and a 2-ns response time. By using calibrated attenuators, we can measure power levels from 10 GW to 0.1… more
Date: September 27, 1989
Creator: Ferguson, S.W.; Stever, R.; Throop, A.; Felker, B. & Franklin, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The role of the axial anomaly in determining spin-dependent parton distributions

Description: It is shown that the forward matrix elements of j{sub 5}{sup {mu}}, the flavor singlet axial vector current, do not measure the helicity carried by quarks and anti-quarks but also include a spin-dependent gluonic component due to the anomaly. Detailed phenomenological and field theoretic reasons are given for the necessity of a gluonic component in the matrix element of j{sub 5}{sup {mu}}. The first higher order corrections to the basic box and triangle graphs are discussed and shown not to mod… more
Date: July 27, 1989
Creator: Carlitz, R.D.; Collins, J.C. & Mueller, A.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SSC (Superconducting Super Collider) supplementary conceptual design report: Cryogenics for detectors

Description: This technical memorandum contains text provided to the SSC for their use in the Supplementary Conceptual Design Report. It was written as part of a Fermilab effort under the guidance of Ray Stefanski of the Fermilab Research Division. This particular memorandum considers the cryogenic systems required to support the superconducting magnets and liquid argon calorimeters associated with SSC detectors.
Date: September 27, 1989
Creator: Fast, R.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Understanding Modern Magnets through Conformal Mapping

Description: When I had to choose, within some narrow range, the topic of this paper, I received great help from a colleague in Berkeley and from Prof. Little when it was suggested that I should pick among the possible subjects of my talk the subject that Prof. Bloch would have enjoyed most. Since Prof. Bloch would prefer a scalpel over a sword every time, I hope and think that most people will approve my choice. When one intends to talk about a subject that is as old as conformal mapping and one does not w… more
Date: October 27, 1989
Creator: Halbach, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Upper limits on neutron bursts emitted from Ti pressurized D sub 2 gas cells

Description: In a search for bursts of neutrons from Ti in pressurized D{sub 2} gas cells, no statistically significant deviations from the background were observed for events where five or more neutrons are detected over a ten day experiment, including 103 hours of counting with cells on, and 28 hours counting of various backgrounds. Up to four cells were used including some 60 grams of 662-Ti fillings in a pressurized cylinder with 40-60 atmosphere of D{sub 2} gas. Other Ti samples were used too. The samp… more
Date: October 27, 1989
Creator: Rugari, S. L.; France, R. H., III; Gai, M.; Lund, B. J.; Smolen, S. D.; Zhao, Z. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Use of the Egret instrument in studies of the origin of the cosmic radiation

Description: This is a continuation of previous studies aimed at predicting spectral signatures of discrete cosmic-ray sources. In this paper, a formalism is developed for calculating gamma-ray spectra observed at Earth from the decay of neutral pions formed in collisions of cosmic-ray protons and ions with galactic gas and dust. The cosmic rays are assumed to be emitted by discrete sources, and their intensities and spectra are described by solutions to a diffusion equation. Calculations of spectral signat… more
Date: October 27, 1989
Creator: Dermer, C. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Waste classification - history, standards, and requirements for disposal

Description: This document contains an outline of a presentation on the historical development in US of different classes (categories) or radioactive waste, on laws and regulations in US regarding classification of radioactive wastes; and requirements for disposal of different waste classes; and on the application of laws and regulations for hazardous chemical wastes to classification and disposal of naturally occurring and accelerator-produced radioactive materials; and mixed radioactive and hazardous chem… more
Date: June 27, 1989
Creator: Kocher, David C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ZPPR progress report, January 1989 through April 1989

Description: Further results are presented from the large, homogeneous assembly ZPPR-18 in the JUPITER-III program. Reaction rate results are given for ZPPR-18B along with measured gamma ray dose results from ZPPR-18A and 18B. Control rod worth results from the ZPPR-18 assemblies are included. Calculation models, measured and calculated k-effective values and measured sodium worth values, are presented for the ZPPR-19 assemblies of the lo program.
Date: April 27, 1989
Creator: Collins, P.J. & Brumbach, S.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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