Search Results

open access

Radionuclides in plankton from the South Pacific Basin

Description: We have initiated an investigation of the utility of marine plankton as bioconcentrating samplers of low-level marine radioactivity in the southern hemisphere. A literature review has shown that both freshwater and marine plankton have trace element and radionuclide concentration factors (relative to water) of up to 10/sup 4/. We participated in Operations Deepfreeze 1981 and 1982, collecting a total of 48 plankton samples from the USCGC Glacier on its Antarctic cruises. Battelle Pacific Northw… more
Date: March 23, 1984
Creator: Marsh, K.V. & Buddemeier, R.W.
Partner: UNT Libraries Government Documents Department
open access

Axicell design for the end plugs of MFTF-B

Description: Certain changes in the end-plug design in the Mirror Fusion Test Facility (MFTF-B) are described. The Laboratory (LLNL) proposes to implement these changes as soon as possible in order to construct the machine in an axicell configuration. The present physics and technology goals as well as the project cost and schedule will not be affected by these changes.
Date: April 23, 1982
Creator: Thomassen, K.I. & Karpenko, V.N.
Partner: UNT Libraries Government Documents Department
open access

[Letter from Jack Davis and Bill McCarter to Nancy Timmons, August 23, 1989]

Description: Photocopy of a letter from Jack Davis and Bill McCarter, co-directors of North Texas Institute for Educators on the Visual Arts, to Dr. Nancy Timmons, Fort Worth ISD. In regards to confirm an appointment on August 31 to discuss the North Texas Regional Institute for Educators on the Visual Arts. McCarter and Davis write a little bit about what the program intends to do, such as prepare teachers and school administrators to implement discipline-based art education on a district wide basis, and w… more
Date: August 23, 1989
Creator: Davis, Donald Jack & McCarter, William
Partner: UNT Libraries Special Collections
open access

Potential of pyroprocessing for partitioning purex wastes

Description: The processes are extremely compact. The process reagents are highly resistant to radiation damage and, therefore, can be used to handle short-cooled, highly concentrated waste with negligible degradation. Most reagents can be recycled back through the process many times, thereby minimizing the generation of waste products, and also reducing the process cost. Fission-product wastes are discharged from the process as concentrated, solid wastes, typically in a metal matrix suitable for permanent … more
Date: July 23, 1980
Creator: Coops, M. S. & Sisson, D. H.
Partner: UNT Libraries Government Documents Department
open access

Personal extrapolation of CDF test beam use to the SSC

Description: The author's personal experience in test beam usage at CDF is used to predict SSC needs at the point of turn-on. It is concluded that the test beam demand will reflect the scale of effort involved in SSC detectors rather than the total number of them. Provision for later expansion is recommended. It is also recommended that the test beam facilities, as well as detector electronics, should reflect the available dynamic range; particularly, a single high energy beam derived from the SSC could be … more
Date: June 23, 1986
Creator: Nodulman, L.
Partner: UNT Libraries Government Documents Department
open access

Reusable tamper-indicating security seal. [Patent Application]

Description: The invention teaches means for detecting unauthorized tampering or substitutions of a device, and has particular utility when applied on a seal device used to secure a location or thing. The seal has a transparent body wall, and a first indicia, viz., a label identification is formed on the inside surface of this wall. Second and third indicia are formed on the outside surface of the transparent wall, and each of these indicia is transparent to allow the parallax angled viewing of the first in… more
Date: June 23, 1981
Creator: Ryan, M. J.
Partner: UNT Libraries Government Documents Department
open access

Conceptual model for regional radionuclide transport from a basalt repository site. Final draft, technical memorandum

Description: This technical memorandum was prepared to: (1) describe a typical basalt radionuclide repository site, (2) describe geologic and hydrologic processes associated with regional radionuclide transport in basalts, (3) define the parameters required to model regional radionuclide transport from a basalt repository site, and (4) develop a ''conceptual model'' of radionuclide transport from a basalt repository site. In a general hydrological sense, basalts may be described as layered sequences of aqui… more
Date: May 23, 1980
Creator: Walton, W.C.; Voorhees, M.L. & Prickett, T.A.
Partner: UNT Libraries Government Documents Department
open access

Buildup studies for MFTF-B

Description: A one-dimensional radial transport code which was developed to study radial transport in tandem mirror machines has been used to perform buildup studies for the central-cell plasma of the proposed MFTF-B experiment. The effects of the cold, unpumped, neutral gas (which accompanies the hot, neutral-beam injection in the central cell) upon the central-cell plasma have been studied for the low-epsilon (epsilon Identical with (..cap omega../sub pi//..cap omega../sub ci/)2) mode and for the two-comp… more
Date: April 23, 1980
Creator: Gilmore, J. M.
Partner: UNT Libraries Government Documents Department
open access

Photomultiplier characteristics considerations for the deep underwater muon and neutrino detection system

Description: The results of an investigation of the characteristics of photomultipliers for the Deep Underwater Muon and Neutrino Detection (DUMAND) System are discussed. The pulse-height resolution, the afterpulsing phenomena and the gain sensitivity to the ambient magnetic field have been determined for large photocathode area photomultipliers. Furthermore, the transient time difference, the single photoelectron time spread, and the collection and photocathode quantum efficiency uniformity as a function o… more
Date: February 23, 1980
Creator: Leskovar, B.
Partner: UNT Libraries Government Documents Department
open access

Cosmic ray events in Soudan 2

Description: The Soudan 2 detector is located at a depth of 2090 meters-water equivalent (mwe). About 2 million muon events have been recorded. Here we report on our plans to analyze them for comparison with expectations from atmospheric cosmic ray models. Plans and capabilities to analyze multiple muons and monopoles are also discussed. 3 refs., 5 figs.
Date: August 23, 1989
Creator: Allison, W. W. M.; Alner, G. J.; Ambats, I.; Ayres, D.; Balka, L.; Barr, G. D. et al.
Partner: UNT Libraries Government Documents Department
open access

Studies of. mu. prime s underground with the Soudan 2 Tracker

Description: During the period July 1987 through March 1988, a section of the Soudan 2 active shield known as the Tracker' recorded {approximately}250,000 muon tracks. The detector is located in the Tower-Soudan State Park in Soudan, Minnesota USA at a depth of 2090 meters-water equivalent. We have analysed the data collected and searched for time-dependent astronomical sources. Distributions in azimuthal and zenith angles as well as declination and right ascension are shown. 1 ref., 7 figs., 1 tab.
Date: August 23, 1989
Creator: Kochocki, J.; Benjamin, D.; Ewen, B.; Kafka, T.; Mann, A.; McMaster, L. et al.
Partner: UNT Libraries Government Documents Department
open access

Heat transfer in inertial confinement fusion reactor systems

Description: The short time and deposition distance for the energy from inertial fusion products results in local peak power densities on the order of 10/sup 18/ watts/m/sup 3/. This paper presents an overview of the various inertial fusion reactor designs which attempt to reduce these peak power intensities and describes the heat transfer considerations for each design.
Date: April 23, 1980
Creator: Hovingh, J.
Partner: UNT Libraries Government Documents Department
open access

Tandem mirror reactors with thermal barriers

Description: Preliminary calculations of Q and magnet designs are presented for three different versions of tandem mirror reactors (TMR) using thermal barriers to enhance plug potentials by auxiliary electron heating. These three versions, called A-cell-barrier TMR, axisymmetric-barrier TMR, and inside-barrier TMR, exhibit reduced plug density (n/sub p/ << 10/sup 19/ m/sup -3/) and less required magnetic mirror field (B/sub mirror approx. = 9 T) compared to TMR designs without thermal barriers. A-cell barri… more
Date: May 23, 1980
Creator: Logan, B. G.; Arfin, B. & Barr, W. L.
Partner: UNT Libraries Government Documents Department
open access

Revegetation of Alaskan coal mine spoils. Progress report

Description: Activities initiated after the start of the revegetation project on Alaskan coal mine spoils on September 1, 1979 have consisted mainly of some fall plantings (dormant seedings) and soil and coal spoil samplings and analyses. Because of the late summer start for the project, only a limited amount of field work could be initiated in plant material studies. This consisted of a fall planting at the Usibelli mine site at Healy in interior Alaska. The planting was intended to test the efficacy of se… more
Date: May 23, 1980
Creator: Mitchell, W W; Mitchell, G A & McKendrick, J D
Partner: UNT Libraries Government Documents Department
open access

Evaluation of low activation vanadium alloys for structural material in a fusion reactor

Description: The V-7.2Cr-14.5Ti, V-9.2Cr-4.9Ti, V-9.9Cr-9.2Ti, V-13.5Cr-5.2Ti, V-4.1Cr-4.3Ti, Vanstar-7, V-4.6Ti, V-17.7Ti, and V-3.1Ti-(0.5-1.0)Si alloys were evaluated for use as structural material in a fusion reactor. The alloys were evaluated on the basis of their yield strength, swelling resistance, resistance to hydrogen and irradiation embrittlement, and compatibility with a lithium reactor coolant. On the basis of these evaluations, the V-7.2Cr-14.5Ti, V-9.2Cr-4.9Ti, V-9.9Cr-9.2Ti, V-13.5Cr-5.2Ti, … more
Date: October 23, 1989
Creator: Loomis, B. A.; Hull, A. B. & Smith, D. L.
Partner: UNT Libraries Government Documents Department
open access

Thermodynamic study of the MWG system/components and measurement of the oxygen partial pressure in the heat source capsule

Description: A thermodynamic study of the Milliwatt Generator heat source capsule was performed to determine the effects of the oxide fuel on container materials at elevated temperatures in order to evaluate the factors affecting embrittlement of T-111 alloy. The study indicates that relatively slow oxidation of the T-111 of the capsule occurs during pretreatment. Yttrium added to the /sup 238/PuO/sub 2/ fuel charge is functioning in its designed role as an oxygen getter and is stabilizing at an O/Pu ratio … more
Date: June 23, 1980
Creator: David, D.J.
Partner: UNT Libraries Government Documents Department
open access

Dispersive effects of transverse displacements of SLC Arc magnets

Description: The SLC Arc magnets are subject to random displacements and field errors resulting in unpredictable transverse displacement of the central trajectory from that of the design. The chosen method of correcting this perturbed trajectory in the SLC Arcs utilizes mechanical movement of the combined function magnets which compose the Arc transport lines. Here we present the results of a recent investigation substantiating the earlier results which led to the adoption of this method.
Date: July 23, 1986
Creator: Murray, J. J.; Fieguth, T. & Kheifets, S.
Partner: UNT Libraries Government Documents Department
open access

Great Western Malting Company geothermal project, Pocatello, Idaho. Final report

Description: The Great Western Malting Company recently constructed a barley malting facility in Pocatello, Idaho, designed to produce 6.0 million bushels per year of brewing malt. This facility uses natural gas to supply the energy for germination and kilning processes. The escalating cost of natural gas has prompted the company to look at alternate and more economical sources of energy. Trans Energy Systems has investigated the viabiity of using geothermal energy at the new barley processing plant. Prelim… more
Date: December 23, 1981
Creator: Christensen, N.T.; McGeen, M.A.; Corlett, D.F. & Urmston, R.
Partner: UNT Libraries Government Documents Department
open access

Vacuum technology issues for the SSC (Superconducting Super Collider)

Description: The Superconducting Super Collider, to be built in Texas, will provide an energy of 40 TeV from colliding proton beams. This energy is twenty times higher than currently available from the only other cryogenic collider, the Fermilab Tevatron, and will allow experiments that can lead to a better understanding of the fundamental properties of matter. The energy scale and the size of the new machine pose intriguing challenges and opportunities for the its vacuum systems. The discussion will includ… more
Date: October 23, 1989
Creator: Joestlein, H.
Partner: UNT Libraries Government Documents Department
open access

Contained Events in Soudan 2

Description: A search for contained events in the Soudan 2 nucleon decay detector has been made for the initial exposure of the first quarter of the 1.1 kiloton detector. This corresponds to an exposure of 0.083 kiloton years in the fiducial volume. We observe 5 {nu}{sub mu} candidate events and 5 {nu}{sub e} candidate events. Results of Monte Carlo simulations of neutrino events and proton decay events in Soudan 2 are compared. 6 refs., 3 figs.
Date: August 23, 1989
Creator: Allison, W. W. M.; Alner, G. J.; Ambats, I.; Balka, L.; Barr, G. D.; Benjamin, D. et al.
Partner: UNT Libraries Government Documents Department
open access

Enhanced durability and reactivity for zinc ferrite desulfurization sorbent

Description: AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-… more
Date: February 23, 1987
Creator: Jha, M. C. & Baltich, L. K.
Partner: UNT Libraries Government Documents Department
open access

Characterizing W-2 SLSF experiment temperature oscillations using computer graphics. [Sodium Loop Safety Facility]

Description: The W-2 SLSF (Sodium Loop Safety Facility) experiment was an instrumented in-reactor test performed to characterize the failure response of full-length, preconditioned LMFBR prototypic fuel pins to slow transient overpower (TOP) conditions. Although the test results were expected to confirm analytical predictions of upper level failure and fuel expulsion, an axial midplane failure was experienced. Extensive post-test analyses were conducted to understand all of the unexpected behavior in the ex… more
Date: June 23, 1983
Creator: Smith, D. E.
Partner: UNT Libraries Government Documents Department

[Dave Lewis and Bill Nelson at Pride III]

Description: Photograph of Dave Lewis (left), and Bill Nelson (right) standing in front of a large group of people at Pride III in Lee Park, Dallas, Texas. Both of them are holding striped rainbow flags on metal poles; several people in the background also have flags. Handwritten on the back of this photo are the words, "R. Dise, #84-23. Shot #6. Pride III Dallas at Lee Park. Foreground, l-r: Dave Lewis Bill Nelson. 09-23-84."
Date: September 23, 1984
Partner: UNT Libraries Special Collections
Back to Top of Screen