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Determination of the beta energy (E/sub max/) using thin window instruments

Description: The use of simple survey instruments for beta-energy analysis is complicated by large differences that exist in the beta spectra shapes. These spectral shapes are often complex and change continuously as the betas are absorbed in air. Changes are also caused by absorbing material between the source and the detector. One may frequently encounter a combination of beta energies, either from multiple emissions from a single isotope or from several isotopes in the sample being evaluated. There may a… more
Date: August 12, 1983
Creator: Hankins, D.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Recent results from the PEP4-TPC on quark fragmentation

Description: The physics goals for the PEP-4/PEP-9 experiment concentrate on two areas: the fragmentation properties of quarks and gluons produced in e+e- annihilation, and the investigation of hadron production in 2-photon collisions. Only the first of these topics is addressed. Despite the many successes of QCD in the description of deep inelastic reactions, the basic fragmentation process of quarks and gluons is not very well understood. This lack of knowledge has been shown to jeopardize precise test of… more
Date: November 12, 1983
Creator: Hofmann, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Large aperture optical switching devices

Description: We have developed a new approach to constructing large aperture optical switches for next generation inertial confinement fusion lasers. A transparent plasma electrode formed in low pressure ionized gas acts as a conductive coating to allow the uniform charging of the optical faces of an electro-optic material. In this manner large electric fields can be applied longitudinally to large aperture, high aspect ratio Pockels cells. We propose a four-electrode geometry to create the necessary high c… more
Date: December 12, 1983
Creator: Goldhar, J. & Henesian, M.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Vacuum measurements on the Tandem Mirror Experiment Upgrade (TMX-U) fusion experiment

Description: The gas inventory of the Tandem Mirror Experiment Upgrade (TMX-U) must be carefully controlled, if it is to successfully create various plasma configurations for thermal-barrier experiments designed to provide an improved performance for tandem-mirror experiments. This paper is a progress report on the calibration methods and pressure measurements of machine conditions deriving from recently improved neutral-beam gas control, and changes to the internal baffling geometry and the gettering syste… more
Date: August 12, 1983
Creator: Calderon, M. O.; Hunt, A. L.; Lang, D. D.; Nexsen, W. E.; Pickles, W. L. & Turner, W. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Beam-dump kicker magnets

Description: The beam-dump kicker magnets are located in the final focus region and, in conjunction with septum magnets, extract the beams after they have passed the interaction point (IP) and direct them to their respective dumps. Two schemes for these kickers have been under consideration; ferrite transmission line magnets utilizing technology common with damping rings and positron target kickers, and current loop magnets which are possible only for the dump kickers, where the rise time of the magnetic pu… more
Date: December 12, 1983
Creator: Bulos, F.; Odian, A. & Tomlin, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Sinkhole]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story about a sinkhole. B-roll footage includes aerial and ground views of the sinkhole and people observing. This story aired at 6:00 P.M.
Date: August 12, 1983
Duration: 54 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Killings]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story by Stephanie Williams of KPRC Houston about the arrest of Eliseo Moreno outside of Wharton, Texas in relation to the murders of Juan and Esther Garza in College Station, Department of Public Safety (DPS) officer Russell Boyd, and two unidentified Hempstead residents as well as the kidnapping of the Shirley family and an unidentified maintenance man. The footage includes law enforcement outside a Hempstead hom… more
Date: October 12, 1983
Duration: 2 minutes 05 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Mid-air]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 12, 1983, 10:00 p.m.
Duration: 1 minute 33 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: St. Patrick's Parade]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 12, 1983, 5:30 p.m.
Duration: 1 minute 01 second
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Exotic animals]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 12, 1983, 10:00 p.m.
Duration: 1 minute 37 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: 4 alarm fire]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 12, 1983, 5:30 p.m.
Duration: 1 minute
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Mid-air]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: March 12, 1983, 5:30 p.m.
Duration: 1 minute 50 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Silicon switch development for optical pulse generation in fusion lasers at Lawrence Livermore National Laboratory

Description: We have been developing a silicon photoconductive switch for use as a Pockels cell driver in the pulse generation systems of the fusion lasers Nova and Novette. The objective has been to make 10 kV switches repeatably and which are reliable on an operating system. We found that nonlinear phenomena in nearly intrinsic silicon caused excessive conduction at high voltage resulting in breakdown. Our experiments with doped material show that this problem can be eliminated, resulting in useful device… more
Date: July 12, 1983
Creator: Wilcox, R. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of ion-energy spectrometers for use on MFTF

Description: This report was originally written as part of the Physics Analysis Document for the End-Loss Ion Energy Spectrometer for MFTF. In the course of that analysis, we investigated many possibilities. We have decided that this survey of the different types of analyzers and detectors could be of use to others facing a similar choice. The Appendix covers a formalism developed for finding the trajectories of charged particles in constant, uniform, but otherwise arbitrary electric and magnetic fields.
Date: April 12, 1983
Creator: Falabella, S. & Grubb, D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reconnection in Spheromak formation and sustainment

Description: The Spheromak is a magnetic confinement device that is being explored in both the US and Japanese fusion programs. It is a member of the Compact Torus family of magnetic structures characterized by a set of closed, nested toroidal flux surfaces but without any coils, transformer cores, etc. protruding through the hole in the torus. The Speromak is closely elated to the Reversed Field Pinch (RFP) in that most of the magnetic field is produced by plasma currents flowing along the magnetic field l… more
Date: December 12, 1983
Creator: Hammer, J. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Design and construction of the vacuum vessel for the tandem Mirror Fusion Test Facility

Description: We have designed the MFTF-B vacuum vessel both to maintain the required vacuum environment and to structurally support the 42 superconducting magnets plus auxiliary internal and external equipment. The design calculations were greatly aided by computer models, which also speeded our redesign effort when the machine configuration was changed to the Axicelll MFTF-B this past year. Our field construction and erection effort should meet the July 1984 completion date for the vacuum vessel.
Date: August 12, 1983
Creator: Gerich, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Flywheel rotor and containment technology development, FY83

Description: The Department of Energy decided to terminate the Flywheel Rotor and Containment Technology Development project during FY 1983. Activities this year included fabrication, inspection, and test evaluation of rotor and containment structures. A peak energy of 700 Wh was stored at an energy density of 70 Wh/kg. In cyclic tests, 10,000 cycles from design speed to half speed were logged without failure. The first test of a lightweight containment structure indicates the need for additional developmen… more
Date: September 12, 1983
Creator: Mohr, P. B. & Walter, C. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Correlation of ultrasonic velocity and rock strength

Description: Ultimate strength and shear wave velocity of dry, 50% saturated, and saturated Paintbrush tuff samples from the Nevada Test Site (NTS) are measured as a function of pressure up to 400 MPa. A linear relationship exists between the ultimate strength (tau) and shear modulus (..mu..) for the dry tuff at pressures from 0.1 to 20 MPa and from 100 to 300 MPa, with values of d tau/d..mu..; of about 1.25 x 10/sup -2/ and 2.6 x 10/sup -2/, respectively. At pressures between 20 and 100 MPa a linear relati… more
Date: January 12, 1983
Creator: Lin, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Court clerk]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 12, 1983, 6:00 p.m.
Duration: 1 minute 41 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Court clerk]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 12, 1983, 10:00 p.m.
Duration: 1 minute 25 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: City budget]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: September 12, 1983, 5:00 p.m.
Duration: 1 minute 06 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: SAT tutor]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 12, 1983, 5:00 p.m.
Duration: 1 minute 46 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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