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Design of a continuous duty cryopump

Description: A continuous duty cryopump system was designed and developed that comprises a self-contained cryopump for installation into a vacuum chamber, and a microprocessor controller for automatic operation. This deuterium pump has two units in a single housing, arranged so that one is pumping while the other is being regenerated. Liquid helium-cooled, finned sections in each unit pump deuterium by condensation, and a third pump integral within the cryopump housing collects the regenerated gas. A microp… more
Date: May 1, 1985
Creator: Sedgley, D.W.
Partner: UNT Libraries Government Documents Department
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Evaluation of the gas production economics of the gas hydrate cyclic thermal injection model. [Cyclic thermal injection]

Description: The objective of the work performed under this directive is to assess whether gas hydrates could potentially be technically and economically recoverable. The technical potential and economics of recovering gas from a representative hydrate reservoir will be established using the cyclic thermal injection model, HYDMOD, appropriately modified for this effort, integrated with economics model for gas production on the North Slope of Alaska, and in the deep offshore Atlantic. The results from this e… more
Date: May 1, 1985
Creator: Kuuskraa, V.A.; Hammersheimb, E. & Sawyer, W.
Partner: UNT Libraries Government Documents Department
open access

Mirror Fusion Test Facility-B (MFTF-B) axicell configuration: NbTi magnet system. Manufacturing/producibility final report. Volume 2

Description: This Final MFTF-B Manufacturing/Producibility Report covers facilities, tooling plan, manufacturing sequence, schedule and performance, producibility, and lessons learned for the solenoid, axicell, and transition coils, as well as a deactivation plan, conclusions, references, and appendices.
Date: May 1, 1985
Creator: Ritschel, A.J. & White, W.L.
Partner: UNT Libraries Government Documents Department
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Biological and Physical Inventory of Clear Creek, Orofino Creek, and the Potlatch River, Tributary Streams of the Clearwater River, Idaho, 1984 Technical Report.

Description: Clear Creek, Orofino Creek, and Potlatch Creek, three of the largest tributaries of the lower Clearwater River Basin, were inventoried during 1984. The purpose of the inventory was to identify where anadromous salmonid production occurs and to recommend enhancement alternatives to increase anadromous salmonid habitat in these streams. Anadromous and fluvial salmonids were found in all three drainages. The lower reach of Clear Creek supported a low population of rainbow-steelhead, while the midd… more
Date: May 1, 1985
Creator: Johnson, David B.
Partner: UNT Libraries Government Documents Department
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Mirror Fusion Test Facility-B (MFTF-B) axicell configuration: NbTi magnet system. Design and analysis summary. Volume 1

Description: This report summarizes the designs and analyses produced by General Dynamics Convair for the four Axicell magnets (A1 and A20, east and west), the four Transition magnets (T1 and T2, east and west), and the twelve Solenoid magnets (S1 through S6, east and west). Over four million drawings and specifications, in addition to detailed stress analysis, thermal analysis, electrical, instrumentation, and verification test reports were produced as part of the MFTF-B design effort. Significant aspects … more
Date: May 1, 1985
Creator: Heathman, J.H. & Wohlwend, J.W.
Partner: UNT Libraries Government Documents Department
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Coherent instability and ion trapping considerations for Aladdin lattices

Description: This paper presents the results of an investigation of the effects of ions and coherent collective instabilities on bunched electron beams circulating in the various Aladdin lattices considered in the Aladdin Upgrade Study. It is aimed particularly at identifying those collective and ion phenomena that may be limiting the performance of the present Aladdin with low energy (100 MeV) injection, at ascertaining which of these phenomena would still remain and limit the performance with a full energ… more
Date: May 1, 1985
Creator: Chattopadhyay, S.
Partner: UNT Libraries Government Documents Department
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Surface extended x-ray absorption fine structure of low-Z absorbates using fluorescence detection

Description: Comparison of x-ray fluorescence yield (FY) and electron yield surface extended x-ray absorption fine structure spectra above the S K-edge for c(2 x 2) S on Ni(100) reveals an order of magnitude higher sensitivity of the FY technique. Using FY detection, thiophene (C/sub 4/H/sub 4/S) chemisorption on Ni(100) is studied with S coverages down to 0.08 monolayer. The molecule dissociates at temperatures as low as 100K by interaction with fourfold hollow Ni sites. Blocking of these sites by oxygen l… more
Date: May 1, 1985
Creator: Stoehr, J.; Kollin, E.B.; Fischer, D.A.; Hastings, J.B.; Zaera, F. & Sette, F.
Partner: UNT Libraries Government Documents Department
open access

Differential cross sections of /sup 3/H(p,n)/sup 3/He and of /sup 6/Li(n,t)/sup 4/He by using triton beams between 5. 95 and 19. 15 MeV and a reevaluation of the p-T neutron production cross sections up to 12 MeV

Description: Six angular distributions and the zero degree excitation function of the reaction /sup 1/H(t,n)/sup 3/He between 5.95 and 19.15 MeV were measured to provide back angle data for the /sup 3/H(p,n)/sup 3/He reaction between 2.0 and 6.4 MeV proton energy. Together with relative angular distributions at 2.22 and 3.00 MeV these data are the backbone of the new evaluation which gives appreciably higher angle yields than previous ones. Consistency of the data base is not very good resulting in maximum … more
Date: May 1, 1985
Creator: Drosg, M.; Haouat, G.; Stoeffel, W. & Drake, D.M.
Partner: UNT Libraries Government Documents Department
open access

CBEAM. 2-D: a two-dimensional beam field code

Description: CBEAM.2-D is a two-dimensional solution of Maxwell's equations for the case of an electron beam propagating through an air medium. Solutions are performed in the beam-retarded time frame. Conductivity is calculated self-consistently with field equations, allowing sophisticated dependence of plasma parameters to be handled. A unique feature of the code is that it is implemented on an IBM PC microcomputer in the BASIC language. Consequently, it should be available to a wide audience.
Date: May 1, 1985
Creator: Dreyer, K. A.
Partner: UNT Libraries Government Documents Department
open access

Experimental operation of a sodium heat pipe

Description: This report documents the operation of a 28 in. long sodium heat pipe in the Heat Pipe Test Facility (HPTF) installed at Argonne National Laboratory. Experimental data were collected to simulate conditions prototypic of both a fluidized bed coal combustor application and a space environment application. Both sets of experiment data show good agreement with the heat pipe analytical model. The heat transfer performance of the heat pipe proved reliable over a substantial period of operation and ov… more
Date: May 1, 1985
Creator: Holtz, R.E.; McLennan, G.A. & Koehl, E.R.
Partner: UNT Libraries Government Documents Department
open access

Heat Exchanger Vibration Analysis (HXVA) for Prediction of Tube Bundle Instabilities

Description: Pre and postprocessors have been written for an established hydraulic program (COMMIX-IHX) which enables prediction of the internal crossflow field for each tube of Argonne's Test Heat Exchanger and identification of those tubes most likely to experience fluid-elastic instability, together with the instability vibration mode. While the direct use of the HXVA method is limited to single pass, single-segmentally baffled tube bundle configurations, its algorithms and methods can be applied to any … more
Date: May 1985
Creator: Mulcahy, T. M.; Wambsganss, M. W. & Yang, C. I.
Partner: UNT Libraries Government Documents Department
open access

On the Experimental Operation of a Sodium Heat Pipe

Description: This report documents the operation of a 28 in. long sodium heat pipe in the Heat Pipe Test Facility (HPTF) installed at Argonne National Laboratory. Experimental data were collected to simulate conditions prototypic of both a fluidized bed coal combustor application and a space environment application. Both sets of experiment data show good agreement with the heat pipe analytical model. The heat transfer performance of the heat pipe proved reliable over a substantial period of operation and ov… more
Date: May 1985
Creator: Holtz, Robert E.; McLennan, G. A. & Koehl, E. R.
Partner: UNT Libraries Government Documents Department
open access

Review of energy confinement and local transport scaling results in neutral-beam-heated tokamaks

Description: Over the past several years, tokamak neutral beam injection experiments have evolved from the brute force study of the effects of global discharge characteristics (I/sub p/, anti n/sub e/, P/sub heat/, etc.) on energy confinement to the appreciation that there are effects more subtle, yet controllable, that may influence confinement dramatically. While this evolution from first to second generation experiments is derived from an empirical understanding of low and high energy confinement modes a… more
Date: May 1, 1985
Creator: Kaye, S.M.
Partner: UNT Libraries Government Documents Department
open access

Hanford ground-water data base management guide and user's manual. [CIRMIS]

Description: This management guide and user's manual is a working document for the computerized Hanford Ground-water Data Base maintained by the Geosciences Research and Engineering Department at Pacific Northwest Laboratory for the Hanford Ground-Water Surveillance Program. The program is managed by the Occupational and Environmental Protection Department for the US Department of Energy. The data base is maintained to provide rapid access to data that are rountinely collected from ground-water monitoring w… more
Date: May 1, 1985
Creator: Mitchell, P.J.; Argo, R.S.; Bradymire, S.L. & Newbill, C.A.
Partner: UNT Libraries Government Documents Department
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Preliminary evaluation of PSCM and BIPP melter design and operating conditions using physical modeling

Description: The Glass Melter Physical Modeling investigation was initiated to support Pacific Northwest Laboratory (PNL) Hanford Waste Vitrification Program. Specifically, results discussed herein are those of the modeled B-Plant Immobilization Pilot Plant (BIPP) and Pilot Scale Ceramic Melter (PSCM) designs. The purpose of this study was to evaluate various melter design features using laboratory scale models. Hydrodynamic, thermal, and electrical similarity between the modeling fluid and the molten glass… more
Date: May 1, 1985
Creator: Skarda, R.J.; Hauser, S.G. & Fort, J.A.
Partner: UNT Libraries Government Documents Department
open access

Measurement control for plutonium isotopic measurements using gamma-ray spectrometry

Description: A measurement control (MC) program should be an integral part of every nondestructive assay measurement system used for the assay of special nuclear materials. This report describes an MC program for plutonium isotopic composition measurements using high-resolution gamma-ray spectroscopy. This MC program emphasizes the standardization of data collection procedures along with the implementation of internal and external measurement control checks to provide the requisite measurement quality assur… more
Date: May 10, 1985
Creator: Fleissner, J.G.
Partner: UNT Libraries Government Documents Department
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Nonideal magnetohydrodynamic instabilities and toroidal magnetic confinement

Description: The marked divergence of experimentally observed plasma instability phenomena from the predictions of ideal magnetohydrodynamics led in the early 1960s to the formulations of finite-resistivity stability theory. Beginning in the 1970s, advanced plasma diagnostics have served to establish a detailed correspondence between the predictions of the finite-resistivity theory and experimental plasma behavior - particularly in the case of the resistive kink mode and the tokamak plasma. Nonlinear resist… more
Date: May 1, 1985
Creator: Furth, H.P.
Partner: UNT Libraries Government Documents Department
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Note for the Mirnov signal analysis in tokamaks

Description: The relation between Mirnov coil signals and the current perturbation on the rational surface is examined analytically by using the approximate Green's function for the case of large aspect ratio circular tokamaks. Satellite island formation, phase modulation effect due to the poloidal variation of the field line pitch, and the shift effect of the plasma column with respect to the center of the vacuum chamber are examined. The detectability of these effects from Mirnov coil signals is discussed… more
Date: May 1, 1985
Creator: Kikuchi, M.
Partner: UNT Libraries Government Documents Department
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Harvester ant bioassay for assessing hazardous chemical waste sites. [Pogonomyrmex owhyeei]

Description: A technique was developed for using harvester ants, Pogonomyrmex owhyeei, in terrestrial bioassays. Procedures were developed for maintaining stock populations, handling ants, and exposing ants to toxic materials. Relative toxicities were determined by exposing ants to 10 different materials. These materials included three insecticides, Endrin, Aldrin, and Dieldrin; one herbicide, 2,4-D; three complex industrial waste residuals, wood preservative sludge, drilling fluid, and slop oil; and three … more
Date: May 1, 1985
Creator: Gano, K. A.; Carlile, D. W. & Rogers, L. E.
Partner: UNT Libraries Government Documents Department
open access

Ion implantation of boron in germanium

Description: Ion implantation of /sup 11/B/sup +/ into room temperature Ge samples leads to a p-type layer prior to any post implant annealing steps. Variable temperature Hall measurements and deep level transient spectroscopy experiments indicate that room temperature implantation of /sup 11/B/sup +/ into Ge results in 100% of the boron ions being electrically active as shallow acceptor, over the entire dose range (5 x 10/sup 11//cm/sup 2/ to 1 x 10/sup 14//cm/sup 2/) and energy range (25 keV to 100 keV) i… more
Date: May 1, 1985
Creator: Jones, K. S.
Partner: UNT Libraries Government Documents Department
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Fish Passage Improvements at Three Mile Falls Diversion Dam, Umatilla River, Oregon, Final Completion Report.

Description: This report contains the results and conclusions from the biological assessment and outlines several alternative plans for solving fish passage problems at the dam. A recommended plan, based on consensus of the fisheries agencies and the tribes, is described, and the rationale for that decision is discussed. Data needs for final designs, a tentative construction schedule, and a discussion of operation and maintenance needs are presented.
Date: May 1, 1985
Creator: Author, Unknown
Partner: UNT Libraries Government Documents Department
open access

Suppression of propagating TE modes in the FNAL antiproton source stochastic beam cooling system

Description: A method of attenuating the propagation of waveguide modes in the stochastic cooling array beam pipes to be utilized in the accumulator and debuncher rings of the Fermilab antiproton source is described. The attenuation method treated involves lining the vertical walls of the beam pipes with a ferrimagnetic material. The general solution for propagation in a nonhomogeneously loaded waveguide is presented along with numerical results specific to the antiproton source beam cooling system. Also de… more
Date: May 1, 1985
Creator: Barry, W.C.
Partner: UNT Libraries Government Documents Department
open access

Basic principle of constant q/sub a/ current build-up in tokamaks

Description: An analytic expression is derived such that the current profile shape is kept constant during the current build-up phase in tokamaks. The required conductivity profile is parametrized by two externally controllable parameters, I/sub p/ and a/sub p/ in the case of the Gaussian current profile. It is shown that a Gaussian current profile can be maintained for a realistically broad conductivity profile by using the constant q/sub a/ current build-up method even under the condition of a high I/sub … more
Date: May 1, 1985
Creator: Kikuchi, M.
Partner: UNT Libraries Government Documents Department
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