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1964 computer run on a laser-imploded capsule

Description: WAZER Alchemy 7b (WA-7b) is a WAZER calculation of a laser-driven micro-implosion of a spherical capsule consisting of a thin gold pusher surrounded by a thick (frozen) deuterium ablator. The properties of the target capsule and the shape of the laser pulse used to irradiate it are described.
Date: March 28, 1973
Creator: Kidder, Ray E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of the Extended Pairing Model to Heavy Isotopes

Description: The binding energies of three isotopic chains ({sup 100-130}Sn, {sup 152-181}Yb, and {sup 181-202}Pb) are studied using the extended pairing model. By using the exact solvability of the model one determines the pairing strength G(A) that reproduces the experimental binding energies. For these isotopic chains, log (G(A)) has a smooth systematic behavior. In particular, G(A) for the Pb and Sn isotopes can be described by a two parameter expression that is inversely proportional to the dimensional… more
Date: September 28, 2004
Creator: Gueorguiev, V G; Pan, F & Draayer, J P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Bioinformatics Symposium of the Analytical Division of the American Chemical Society Meeting. Final Technical Report from 03/15/2000 to 03/14/2001 [sample pages of agenda, abstracts, index]

Description: Sparked by the Human Genome Project, biological and biomedical research has become an information science. Information tools are now being generated for proteins, cell modeling, and genomics. The opportunity for analytical chemistry in this new environment is profound. New analytical techniques that can provide the information on genes, SNPs, proteins, protein modifications, cells, and cell chemistry are required. In this symposium, we brought together both informatics experts and leading analy… more
Date: March 28, 2000
Creator: Kennedy, Robert T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of 239Pu(n,2n) Cross Section by the Subtraction and the Ratio Methods

Description: The {sup 239}Pu(n,2n) and the {sup 235}U(n,2n) cross section are estimated by applying unitarity in several approaches: a subtraction method and also by using a ratio approach that relates the above cross sections to the {sup 238}U(n,2n) cross section and the {sup 239}Pu(n,2n) cross section to the {sup 235}U(n,2n) cross section, respectively. Also, a self-consistent, simultaneous analysis of the cross section data of four nuclei, {sup 239}Pu, {sup 235}U, {sup 238}U and {sup 232}Th, was undertak… more
Date: September 28, 2000
Creator: Mavratil, P. & McNabb, D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The cascade ICF reactor with an x-ray and debris shield and a heavy-ion driver

Description: The use of a 1-kg solid-lithium x-ray and debris shield around each fusion fuel pellet prevents vaporization of, and destructive shock waves in, the Cascade blanket granules thereby increasing their lifetime. The shield vaporizes as it absorbs energy and the vapor flows into the blanket several centimeters. The shield also increases tritium breeding and enhances vacuum pumping of high Z materials that are vaporized in the fuel pellet. Using heavy ion beams allows illumination of the fuel pellet… more
Date: September 28, 1990
Creator: Pitts, John H. & Tabak, Max
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Core of NGC 6240 from Keck Adaptive Optics and HST NICMOS Observations

Description: We present results of near infrared imaging of the disk-galaxy-merger NGC 6240 using adaptive optics on the Keck II Telescope and reprocessed archival data from NICMOS on the Hubble Space Telescope. Both the North and South nuclei of NGC 6240 are clearly elongated, with considerable sub-structure within each nucleus. In K' band there are at least two point-sources within the North nucleus; we tentatively identify the south-western point-source within the North nucleus as the position of one of … more
Date: June 28, 2004
Creator: Max, C. E.; Canalizo, G.; Macintosh, B. A.; Raschke, L.; Whysong, D.; Antonucci, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Cost/risk/benefit analysis report on the decontamination and decommissioning of Z-plant

Description: This study was performed to estimate the cost of decontaminating and decommissioning Z-Plant. All of the buildings in the Z-Plant exclusion area except Building 2736-Z, the plutonium storage vault, are included in the study. The study also excludes all underground facilities within the exclusion area which are not contained within a building and all Z-Plant related facilities outside the perimeter fence. The contamination in Z-Plant is primarily /sup 239/Pu which has a half-life of 24,360 years… more
Date: September 28, 1979
Creator: Melvin, J. P.; Sexton, R. A.; Fort, M. L. & Nunn, S. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Debris collection from implosion of microballoons

Description: Recovery of krypton from implosion of glass microballoons has been studied in the development of a radiochemical diagnostic for determination of <rho r> /sub fuel/. Collection onto metal surfaces following implosions performed on the OMEGA laser with 1-3 TW (1-2 kJ) of 0.35 ..mu..m light is consistent with an ion implantation mechanism. The dependence of the intrinsic collection efficiency on the energy fluence to the collector surface and its variation in implosions carried out under the same … more
Date: March 28, 1986
Creator: Prussin, S.G.; Lane, S.M.; Richardson, M.C. & Noyes, S.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DESCRIPTION OF PRINTED OUTPUT FROM INTRANUCLEAR CASCADE CALCULATION

Description: ABS>A detailed description of the printed output sheets from the intranuclear cascade calculation described in ORNL3383 is given. The three analysis codes --analysis codes I and II and an evaporation code --that were written to organize the raw data of the output tape are considered. (auth) A tabulation of the neutron total cross section of U/sup 233/ as a function of neutron energy from 0.07 to 10,000 ev, measured with the ORNL fast chopper time- of-flight neutron spectrometer is given. (auth)
Date: May 28, 1963
Creator: Bertini, H.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Design of a Fluorine-18 Production System at ORNL Cyclotron Facility. Part 2

Description: A fluorine-18 recovery system using an anion-exchange side-stream column was designed for the H/sub 2//sup 18/O target at the ORNL 86-inch cyclotron. The extent of radiolysis was determined and a catalyst vessel, containing a palladium catalyst, was incorporated to recombine the radiolysis product gases. The preliminary design of an externally bombarded gas target for the production of /sup 18/F/sub 2/ from /sup 18/O/sub 2/ was also completed.
Date: November 28, 1977
Creator: Chu, Y.E.; Engstrom, S.D. & Sundberg, D.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dynamics of the reaction of the N/sup +/ ion with hydrogen isotopes and helium

Description: Molecular beam techniques were used to study the reactive and non-reactive scattering of the nitrogen positive ion from hydrogen isotopes and helium, at energies above the stability limit for spectator stripping. Reactive scattering was observed from H/sub 2/ and HD targets. Non-reactive scattering was observed from H/sub 2/ and D/sub 2/ targets, and from He at one energy. A correlation diagram for the system is presented and compared with the available a priori calculations. Two surfaces are e… more
Date: June 28, 1976
Creator: Ruska, W. E. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Entry State Distributions of Discrete Yrast Transitions in Heavy Ion Induced Fusion Reactions

Description: Gamma rays emitted during yrast transitions from compound nuclei are detected with a 4..pi.. multielement gamma ray detector system. Both total pulse height (H) and coincidence fold data (k) are obtained for each event. Results presented include entry state distribution states, k and H projections for some of these distributions, and k and H as a function of spin of the yrast transition. 5 figs. (DWL)
Date: May 28, 1985
Creator: Lee, I. Y.; Baktash, C.; Beene, J. R.; Fewell, M. P.; Halbert, M. L.; Johnson, N. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of a nonevaporable getter pump for tritium handling in the Tokamak Fusion Test Reactor

Description: Lawrence Livermore Laboratory has tested and evaluated a commercially available getter pump for use with tritium in the Tokamak Fusion Test Reactor (TFTR). The pump contains Zr(84%)--Al in cartridge form with a concentric heating unit. It performed well in all tests, except for frequent heater failures.
Date: September 28, 1978
Creator: Singleton, M. F. & Griffith, C. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Excitation of a quantal and a classical gas in a time-dependent potential

Description: We report on computer simulations of oscillating Woods-Saxon or cavity potentials filled with either a classical or a quantal gas of independent particles. We have now available of the order of 600 excitation histories of such gases undergoing usually one period of oscillation (but sometimes several), classified according to frequency and multipolarity of the oscillation and of the degree of diffuseness of the potential. We are still in the process of displaying and interpreting some of the res… more
Date: September 28, 1994
Creator: Blocki, J.; Brut, F.; Skalski, J. & Swiatecki, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experimental prospects for the synthesis and detection of superheavy elements

Description: Schemes that could be used for detection of superheavy elements (SHE) are briefly discussed first. The question of producing SHE in other than complete fusion reactions (e.g., in deep inelastic reactions) is addressed at greater length. Production cross sections are estimated. A heavy ion lens spectrometer for the detection of reaction products is described. 18 figures, 3 tables. (RWR)
Date: March 28, 1978
Creator: Nitschke, J.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Experiments in Cold Fusion

Description: The work of Steve Jones and others in muon-catalyzed cold fusion of deuterium and hydrogen suggests the possibility of such fusion catalyzed by ions, or combinations of atoms, or more-or-less free electrons in solid and liquid materials. A hint that this might occur naturally comes from the heat generated in volcanic action in subduction zones on the earth. It is questionable whether the potential energy of material raised to the height of a midocean ridge and falling to the depth of an ocean t… more
Date: March 28, 1986
Creator: Palmer, E. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report for "Ice nuclei relation to aerosol properties: Data analysis and model parameterization for IN in mixed-phase clouds" (DOE/SC00002354)

Description: Clouds play an important role in weather and climate. In addition to their key role in the hydrologic cycle, clouds scatter incoming solar radiation and trap infrared radiation from the surface and lower atmosphere. Despite their importance, feedbacks involving clouds remain as one of the largest sources of uncertainty in climate models. To better simulate cloud processes requires better characterization of cloud microphysical processes, which can affect the spatial extent, optical depth and li… more
Date: September 28, 2012
Creator: DeMott, Paul J.; Prenni, Anthony J. & Kreidenweis, Sonia M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fusion component design for the moving-ring field-reversed mirror reactor

Description: This partial report on the reactor design contains sections on the following: (1) burner section magnet system design, (2) plasma ring energy recovery, (3) vacuum system, (4) cryogenic system, (5) tritium flows and inventories, and (6) reactor design and layout. (MOW)
Date: January 28, 1981
Creator: Carlson, G.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Gamma-ray Albedo of the Moon

Description: We use the GEANT4 Monte Carlo framework to calculate the {gamma}-ray albedo of the Moon due to interactions of cosmic ray (CR) nuclei with moon rock. Our calculation of the albedo spectrum agrees with the EGRET data. We show that the spectrum of {gamma}-rays from the Moon is very steep with an effective cutoff around 3-4 GeV (600 MeV for the inner part of the Moon disk) and exhibits a narrow pion-decay line at 67.5 MeV, perhaps unique in astrophysics. Apart from other astrophysical sources, the… more
Date: September 28, 2007
Creator: Moskalenko, Igor V.; /Stanford U., HEPL; Porter, Troy A. & /UC, Santa Cruz
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hartree-Fock Mean-Field Models Using Separable Interactions

Description: An effective two-body nuclear interaction is presented which is a sum of terms separable in coordinate space. Calculations are made using this interaction of some doubly closed-shell spherical nuclei using many-body perturbation theory with the Hartree-Fock state as a reference state. It is demonstrated that the interaction gives good bulk properties in finite nuclei.
Date: June 28, 1999
Creator: Stevenson, P.; Stone, J. R. & Strayer, M. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-resolution positron Q-value measurements and nuclear-structure studies far from the stability line. Progress report

Description: Extensive data analysis and theoretical analysis has been done to complete the extensive decay scheme investigation of /sup 206/ /sup 208/Fr and the level structures of /sup 206/ /sup 208/Rn. A final version of a journal article is presented in preprint form. Extensive Monte Carlo calculations have been made to correct the end point energies of positron spectra taken with intrinsic Ge detectors for annihilation radiation interferences. These calculations were tested using the decay of /sup 82/S… more
Date: February 28, 1981
Creator: Avignone, F. T. III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ICF tritium production reactor

Description: The conceptual design of an ICF tritium production reactor is described. The chamber design uses a beryllium multiplier and a liquid lithium breeder to achieve a tritium breeding ratio of 2.08. The annual net tritium production of this 532 MW/sub t/ plant is 16.9 kg, and the estimated cost of tritium is $8100/g.
Date: February 28, 1985
Creator: Meier, W. R.; McCarville, T. J.; Berwald, D. H.; Gordon, J. D. & Steele, W. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interim report on modeling studies of two-photon isotope separation

Description: The two-photon or two-step dissociation method of laser induced isotope enrichment is being modeled for the HBrNO photochemical system. In the model, H/sup 79/Br is selectively excited by resonance IR laser radiation and then dissociated by uv radiation. Selectively dissociated Br atoms are scavenged to form isotopically enriched BrNO and Br/sub 2/. This model includes all kinetic and absorption processes found to be significant and the time-varying concentrations of any species involved in a s… more
Date: January 28, 1975
Creator: Hwang, W.C.; Badcock, C.C. & Kamada, R.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

International safeguards: Accounting for nuclear materials

Description: Nuclear safeguards applied by the International Atomic Energy Agency (IAEA) are one element of the non-proliferation regime'', the collection of measures whose aim is to forestall the spread of nuclear weapons to countries that do not already possess them. Safeguards verifications provide evidence that nuclear materials in peaceful use for nuclear-power production are properly accounted for. Though carried out in cooperation with nuclear facility operators, the verifications can provide assuran… more
Date: September 28, 1988
Creator: Fishbone, L.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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