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Action plan for response to excessive temperatures in Hanford site high-heat waste tank 241-C-106

Description: Tank 241-C-106 is a single shell tank at the Hanford Site in south central Washington State, and is the only tank on Hanford`s High-Heat Tank Watch List. This action plan defines possible abnormal conditions (such as ventilation system failure or a leaking tank) that could lead to excessive temperature increases in tank 241-C-106, and documents pre-planned contingency actions would effectively mitigate the consequences of such increased temperatures. Potential structural damage may result from … more
Date: August 23, 1996
Creator: Rensink, G.E., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Bonding of WC with an iron aluminide (FeAl) intermetallic

Description: FeAl, which has high oxidation and sulfidation resistance, was shown to be thermodynamically compatible with WC. Calculations indicate that soly. of WC in liq. Fe-40at.%Al at 1450 C is about 2 at.%. Since liquid FeAl wets WC very well, the WC/FeAl system lends itself to liquid-phase sintering, resulting in close to theoretical densities. Almost fully dense cermets with 20.6 wt% FeAl binder were produced. With one-step infiltration, 98% dense cermets with only 7 wt% FeAl binder were fabricated. … more
Date: August 1, 1996
Creator: Schneibel, J. H. & Subramanian, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hanford Site National Environmental Policy Act (NEPA) characterization. Revision 8

Description: This eighth revision of the Hanford Site National Environmental Policy Act (NEPA) Characterization presents current environmental data regarding the Hanford Site and its immediate environs. This information is intended for use in preparing Chapters 4 and 6 in Hanford Site-related NEPA documents. Chapter 4 (Affected Environment) includes information on climate and meteorology, geology, hydrology, ecology, historical, archaeological and cultural resources, socioeconomics, and noise. Chapter 6 (St… more
Date: August 1, 1996
Creator: Neitzel, D. A.; Bjornstad, B. N.; Fosmire, C. J. & Fowler, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ITER vacuum vessel design (D201 subtask 1.3 and subtask 3). Final report

Description: ITER Task No. D201, Vacuum Vessel Design (Subtask 1.3 and Subtask 3), was initiated to propose and evaluate local vacuum vessel reinforcement alternatives in proximity to the Neutral Beam, Radial Mid-Plane, Top, and Divertor Ports. These areas were reported to be highly stressed regions based on the results of preliminary stress analyses performed by the USHT (US Home Team) and the ITER Joint Central Team (JCT) at the Garching JWS (Joint Work Site). Initial design activities focused on the dive… more
Date: August 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The use of combustible metals in explosive incendiary devices

Description: We have investigated tailoring damage effects of explosive devices by addition of unconventional materials, specifically combustible metals. Initial small-scale as well as full-scale testing has been performed. The explosives functioned to disperse and ignite these materials. Incendiary, enhanced-blast, and fragment-damage effect have been identified. These types of effects can be used to extend the damage done to hardened facilities. In other cases it is desirable to disable the target with mi… more
Date: August 1, 1996
Creator: Fischer, S.H. & Grubelich, M.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Consequence analysis of a postulated NaOH release from the 2727-W sodium storage facility

Description: Toxicological and radiological consequences were calculated for a maximum sodium fire in the 2727-W Sodium Storage Facility. The sodium is solid and cannot leak out of the tanks. The maximum fire therefore corresponded to the maximum cross-sectional area of one tank. It was shown that release of the entire facility inventory of {sup 22}Na is insufficient to produce an appreciable effect.
Date: August 2, 1996
Creator: Himes, D.A., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hard single diffractive jet production at D0

Description: Preliminary results from the D{null} experiment on jet production with forward rapidity gaps in {ital p{anti p}} collisions are presented. A class of dijet events with a forward rapidity gap is observed at center-of-mass energies {radical}s = 1800 GeV and 630 GeV. The number of events with rapidity gaps at both center-of-mass energies is significantly greater than the expectation from multiplicity fluctuations and is consistent with a hard single diffractive process. A small class of events wit… more
Date: August 1, 1996
Creator: Abachi, S.; Abbott, B. & Abolins, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Small angle muon and b-quark production in p pbar collisions at squareroot s = 1.8 TeV

Description: We report on a measurement of small angle muon production (2.4 < {vert_bar}{ital y}{sup {mu}}{vert_bar} < 3.2) in {ital p}{ital {anti p}} collisions at {radical}s = 1.8 TeV with the D{null} detector at Fermilab. We have determined the fraction of the inclusive {mu} cross section in this region due to {ital b}-quark production and decay. Combining this measurement with our previously measured cross section in the central region, we calculate {ital d}{sigma}/{ital dy} for muons from {ital b} deca… more
Date: August 1, 1996
Creator: Abachi, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Test report for core drilling ignitability testing

Description: Testing was carried out with the cooperation of Westinghouse Hanford Company and the United States Bureau of Mines at the Pittsburgh Research Center in Pennsylvania under the Memorandum of Agreement 14- 09-0050-3666. Several core drilling equipment items, specifically those which can come in contact with flammable gasses while drilling into some waste tanks, were tested under conditions similar to actual field sampling conditions. Rotary drilling against steel and rock as well as drop testing o… more
Date: August 8, 1996
Creator: Witwer, K.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Search for b {yields} X {mu} {sup +} {mu} {sup -} and B {sup 0} {yields} {mu} {sup +} {mu} {sup -} decays in p {anti p} Collisions at {radical} s= 1.8 TeV

Description: We have searched for the flavor-changing neutral current decays b {yields} X{mu}{sup +}{mu}{sup -} and B{sup 0} {yields} {mu}{sup +}{mu}{sup -} in p{anti p} collisions at {radical}s = 1.8 TeV with the D0 detector at Fermilab. Using our observed {mu}{sup +}{mu}{sup - } mass spectrum and the measured b production cross section we determine the 90% confidence limit for the branching fraction B(b {yields} s{mu}{sup +}{mu}{sup -}) < 3.6{times}10{sup -5}. For the exclusive, purely leptonic decay B{su… more
Date: August 1, 1996
Creator: Abachi, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contaminant transport in unconfined aquifer, input to low-level tank waste interim performance assessment

Description: This report describes briefly the Hanford sitewide groundwater model and its application to the Low-Level Tank Waste Disposal (LLTWD) interim Performance Assessment (PA). The Well Intercept Factor (WIF) or dilution factor from a given areal flux entering the aquifer released from the LLTWD site are calculated for base case and various sensitivity cases. In conjunction with the calculation for released fluxes through vadose zone transport,the dose at the compliance point can be obtained by a sim… more
Date: August 14, 1996
Creator: Lu, A.H., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The b{bar b} production cross section and correlations in p{bar p} collisions at {radical}s = 1.8 TeV

Description: The authors present measurements of the b{bar b} production cross section and angular correlations between the b and {bar b}-quarks in p{bar p} collisions using the D0 detector at the Fermilab Tevatron operating at {radical}s = 1.8 TeV. The b-quark production cross section for {vert_bar}y{sup b}{vert_bar} < 1.0 and {rho}{sub {tau}}{sup b} > 8 GeV/c is extracted and found to be consistent with next-to-leading order QCD predictions. In addition, the angular correlations between the b and {bar b}-… more
Date: August 1, 1996
Creator: Gomez, B.; Hoeneisen, B. & Negret, J.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Rapidity dependence of the inclusive J/{psi} production in p{bar p} collisions at {radical}s = 1.8 TeV

Description: We have studied the {ital J}/{psi} production in {ital p}{ital {anti p}} collisions at {radical}s = 1.8 TeV with the D{null} detector at the Fermilab Tevatron, using a {mu}{sup +}{mu}{sup -} data sample collected during the 1994-95 running period. We have measured the inclusive {ital J}/{psi} production cross section as a function of the {ital J}/{psi} transverse momentum, {ital P}{sub T}{sup {ital J}/{psi}} in the central and forward rapidity regions. The new measurement of the cross section {… more
Date: August 1, 1996
Creator: D0 Collaboration
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Results from a search for a neutral Scalar produced in association with a W boson in p pbar collisions at squareroot s = 1.8 TeV

Description: This paper presents a search for production of a hypothetical heavy particle {ital X} in association with a {ital W} boson. For the search presented here, the kinematics and acceptance are modelled under the assumption that the {ital X} particle has the spin and decay properties of the standard model Higgs boson with the modification that only {ital X} {r_arrow} {ital b}{ital {anti b}} decays are allowed. The {ital W} is required to decay via either the electron or muon mode. The complete D{nul… more
Date: August 1, 1996
Creator: Abachi, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Performance assessment for the disposal of low-level waste in the 200 east area burial grounds

Description: A performance assessment analysis was completed for the 200 East Area Low-Level Burial Grounds (LLBG) to satisfy compliance requirements in DOE Order 5820.2A. In the analysis, scenarios of radionuclide release from the 200 East Area Low-Level waste facility was evaluated. The analysis focused on two primary scenarios leading to exposure. The first was inadvertent intrusion. In this scenario, it was assumed that institutional control of the site and knowledge of the disposal facility has been lo… more
Date: August 15, 1996
Creator: Wood, M.I., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Criticality parameters for tank waste evaluation

Description: A summary is provided of basic parameters used to evaluate criticality safety of high-level tank waste at the Hanford Site.Critical sizes and plutonium concentrations are based on a conservative waste model with reduced neutron absorption and optimized water. Figures were provided of sphere and slab minimum critical dimensions and plutonium critical masses.Minimum subcritical limit absorber/plutonium mass ratios are provided for selected waste components. Component contributions to subcriticali… more
Date: August 21, 1996
Creator: Rogers, C.A. & Harris, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radionuclide adsorption distribution coefficients measured in Hanford sediments for the low level waste performance assessment project

Description: Preliminary modeling efforts for the Hanford Site`s Low Level Waste-Performance Assessment (LLW PA) identified {sup 129}I, {sup 237}Np, {sup 79}Se, {sup 99}Tc, and {sup 234},{sup 235},{sup 238}U as posing the greatest potential health hazard. It was also determined that the outcome of these simulations was very sensitive to the parameter describing the extent to which radionuclides sorb to the subsurface matrix, i.e., the distribution coefficient (K{sub d}). The distribution coefficient is a ra… more
Date: August 1, 1996
Creator: Kaplan, D.I.; Serne, R.J. & Owen, A.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tank waste remediation system phase I high-level waste feed processability assessment report

Description: This report evaluates the effects of feed composition on the Phase I high-level waste immobilization process and interim storage facility requirements for the high-level waste glass.Several different Phase I staging (retrieval, blending, and pretreatment) scenarios were used to generate example feed compositions for glass formulations, testing, and glass sensitivity analysis. Glass models and data form laboratory glass studies were used to estimate achievable waste loading and corresponding gla… more
Date: August 1, 1996
Creator: Lambert, S. L. & Stegen, G. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pretreatment applied engineering, corrosion assessment for tank materials: 1995 final report

Description: For sludge washing to be conducted in existing Hanford carbon steel tanks, there must be an assurance that the tanks will be safe from failure by pitting, stress-corrosion cracking or other failure processes when the corrosion inhibitors present in the waste are diluted during the sludge washing operation. Testing has been conducted previously to define safe operating regimes in concentrated waste environments and moderately dilute waste environments. Due to identification of unsafe operating r… more
Date: August 9, 1996
Creator: Maclean, G.T., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Utilization of Teleconferencing by Community Colleges in Faculty and Staff Development Presentations

Description: Members of the Instructional Teleconference Consortium (ITC) were mailed a survey instrument. A total list of 375 teleconference coordinators generated 137 usable responses. The purposes of this study of faculty and staff development presentations by teleconferencing were to determine the amount of usage; which subject areas are utilized; what delivery methods (live, interactive, prerecorded, multimedia, etc.) are utilized; barriers (size or location of college, size of teleconference or travel… more
Date: August 1996
Creator: Maples, Alan (Alan Royce)
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Unit cell modeling in support of interim performance assessment for low level tank waste disposal

Description: A unit cell model is used to simulate the base analysis case and related sensitivity cases for the interim performance assessment of low level tank waste disposal. Simulation case results are summarized in terms of fractional contaminant release rates to the vadose zone and to the water table at the unconfined aquifer. Results suggest that the crushed glass water conditioning layer at the top of the facility and the chemical retardation pad at the bottom of the facility can be important compone… more
Date: August 1, 1996
Creator: Kline, N.W., Westinghouse Hanford
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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