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Comparisons of TRAC-PF-1 calculations with semiscale Mod-3 small-break tests S-SB-P1 and S-SB-P7. [PWR]

Description: Semiscale Tests S-SB-P1 and S-SB-P7 conducted in the Semiscale Mod-3 facility at the Idaho National Engineering Laboratory are analyzed using the latest released version of the Transient Reactor Analysis Code (TRAC-PF1). The results are used to assess TRAC-PF1 predictions of thermal-hydraulic phenomena and the effects of break size and pump operation on system response during slow transients. Tests S-SB-P1 and S-SB-P7 simulated an equivalent pressurized-water-reactor (PWR) 2.5% communicative co… more
Date: January 1, 1982
Creator: Sahota, M.S.
Item Type: Refine your search to only Article
open access

Comparisons of TRAC-PF1 calculations with semiscale Mod-3 small-break tests S-07-10D, S-SB-P1, and S-SB-P7. [PWR]

Description: Semiscale Tests S-07-10D, S-SB-P1, and S-SB-P7 conducted in the Semiscale Mod-3 facility at the Idaho National Engineering Laboratory are analyzed using the latest released version of the Transient Reactor Analysis Code (TRAC-PF1). The results are used to assess TRAC-PF1 predictions of thermal-hydraulic phenomena and the effects of break size and pump operation on system response during slow transients. Test S-07-10D simulated an equivalent pressurized-water-reactor (PWR) 10% communicative cold… more
Date: January 1, 1982
Creator: Sahota, M.S.
Item Type: Refine your search to only Article
open access

Comparisons of U.S. and Foreign Military Spending: Data from Selected Public Sources

Description: This report lists and compares military expenditures of the United States and foreign nations using two sources: the London-based International Institute for Strategic Studies’ (IISS) The Military Balance, and the U.S. State Department’s World Military Expenditures and Arms Transfers (WMEAT). Although the IISS and the U.S. State Department aim to provide figures that are as consistent and accurate as possible, cross-national comparisons of defense spending are inherently imperfect. Available se… more
Date: January 28, 2004
Creator: Chamberlin, Jeffrey
Item Type: Refine your search to only Report
open access

Comparisons of uniform and discrete source distributions for use in bioassay laboratory performance testing

Description: The Pacific Northwest Laboratory (PNL) is sending a torso phantom with radioactive material uniformly distributed in the lungs to in vivo bioassay laboratories for analysis. Although the radionuclides ultimately chosen for the studies had relatively long half-lives, future accreditation testing will require repeated tests with short half-life test nuclides. Computer modeling was used to simulate the major components of the phantom. Radiation transport calculations were then performed using the … more
Date: September 1, 1987
Creator: Scherpelz, R.I. & MacLellan, J.A.
Item Type: Refine your search to only Report
open access

Comparisons of VUU (Vlasov-Uehling-Uhlenbeck) predictions with streamer chamber data

Description: Experimental charged particle inclusive and exclusive parameters for several nuclear systems are compared with microscopic model predictions based on the Vlasov-Uehling-Uhlenbeck equation, for various density-dependent nuclear equations of state (EOS). Inclusive variables and multiplicity distributions are in good agreement, and are not sensitive to the EOS. Rapidity spectra show evidence of being useful in determining whether the model uses the correct sections for binary collisions in the nuc… more
Date: January 1, 1987
Creator: Keane, D.; Chu, S.Y.; Fung, S.Y.; Liu, Y.M.; Qiao, L.J.; VanDalen, G. et al.
Item Type: Refine your search to only Article
open access

Comparisons of Wilson-Fowler and Parametric Cubic Splines with the Curve-Fitting Algorithms of Several Computer-Aided Design Systems

Description: The purpose of this report is to demonstrate that modern computer-aided design (CAD), computer-aided manufacturing (CAM), and computer-aided engineering (CAE) systems can be used in the Department of Energy (DOE) Nuclear Weapons Complex (NWC) to design new and remodel old products, fabricate old and new parts, and reproduce legacy data within the inspection uncertainty limits. In this study, two two-dimensional splines are compared with several modern CAD curve-fitting modeling algorithms. The … more
Date: February 1, 2001
Creator: Birchler, W.D. & Schilling, S.A.
Item Type: Refine your search to only Report
open access

Comparisons of Yield Calculations with Data

Description: Given what is claimed to a reasonably accurate technique for calculating the pbar yield, it is useful to ask for comparisons with the data available from the recent commissioning run. The simplest comparison to make is that of the yield. The number of pbars circulating in the Debuncher was measured many times; the total number of secondaries at IC728 in AP-2 was also measured many times. The ratio of pbars to total flux at IC728 was measured once (Bk. I, p 166); this number was {bar P}/total = … more
Date: February 1, 1986
Creator: Dugan, G.
Item Type: Refine your search to only Report
open access

Compartmentalization analysis using discrete fracture network models

Description: This paper illustrates how Discrete Fracture Network (DFN) technology can serve as a basis for the calculation of reservoir engineering parameters for the development of fractured reservoirs. It describes the development of quantitative techniques for defining the geometry and volume of structurally controlled compartments. These techniques are based on a combination of stochastic geometry, computational geometry, and graph theory. The parameters addressed are compartment size, matrix block siz… more
Date: December 31, 1997
Creator: La Pointe, P.R.; Eiben, T.; Dershowitz, W. & Wadleigh, E.
Item Type: Refine your search to only Article
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Compartmented mode workstation (CMW) comparisons

Description: As the Compartmented Mode Workstation (CMW) market has matured, several vendors have released new versions of their CMW operating systems. These include a new version from SecureWare (CMW + Version 2.4), and Sun`s CMW 1.1 (also known as Trusted Solaris 1.1). EC is now shipping MLS+ 3.0 for DEC Alpha platforms. Relatively new entries in the market include Loral B1/CMW for IBM RS/6000 platforms and a SecureWare-based CMW for HP platforms (HP-UX 10.09). With all these choices it is time for a comp… more
Date: December 31, 1995
Creator: Tolliver, J.S.
Item Type: Refine your search to only Article
open access

COMPASS, the COMmunity Petascale project for Accelerator Science and Simulation, a board computational accelerator physics initiative

Description: Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools… more
Date: July 16, 2007
Creator: Cary, J. R.; Spentzouris, P.; Amundson, J.; McInnes, L.; Borland, M.; Mustapha, B. et al.
Item Type: Refine your search to only Article
open access

COMPASS, the COMmunity Petascale Project for Accelerator Science And Simulation, a Broad Computational Accelerator Physics Initiative

Description: Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for Accelerator Science and Simulation, is a broad, four-office (HEP, NP, BES, ASCR) effort to develop computational tools for the prediction and performance enhancement of accelerators. The tools… more
Date: November 9, 2007
Creator: Cary, J. R.; Spentzouris, P.; Amundson, J.; McInnes, L.; Borland, M.; Mustapha, B. et al.
Item Type: Refine your search to only Article
open access

Compatibility and Outgassing Studies for Directed Stockpile Work (FY05)

Description: Compatibility and outgassing studies of non-nuclear materials were carried out in support of the W80 Life Extension Program. These studies included small-scale laboratory experiments as well as participation in Sandia's Materials Aging and Compatibility test (MAC-1). Analysis of the outgassing signature of removable epoxy foam (REF) revealed unusually high levels of volatile organic compounds in the material. REF was replaced with the polyurethane PMDI. Laboratory compatibility tests of high pr… more
Date: November 23, 2005
Creator: Alviso, C; Harvey, C & Vance, A
Item Type: Refine your search to only Report
open access

Compatibility and stability of plutonia-238 base cermet fuel forms in refractory alloy containers at 1500$sup 0$ to 2000$sup 0$C

Description: The compatibility of two and stability of three plutonia-238 base cermet fuels were investigated at 1500 deg to 2000 deg C from which were well in excess of current RTGs. A Battelle-Columbus Laboratories plutonia-molybdenum cermet (BCL-PMC) developed as a precurser of the current PMC fuel form was investigated for stability at 1500 deg to 2000 deg C for times to 10,000 h. The thoria and molybdenum overcoated test specimens encapsulated in single W-25Re containers degraded with increasing time a… more
Date: September 1, 1973
Creator: Watrous, J. D. & Ferguson, W. E.
Item Type: Refine your search to only Report
open access

Compatibility between vandium-base alloys and flowing lithium: Partitioning of hydrogen at elevated temperatures

Description: A major concern in fusion reactor design is possible hydrogen-isotope-induced embrittlement of structural alloys in the neutron environment expected in these reactors. Hydrogen fractionation occurs between lithium and various refractory metals according to a temperature-dependent distribution coefficient, K{sub H}, that is defined as the ration of the hydrogen concentration in the metallic specimen to that in the liquid lithium. In the present work, K{sub H} was determined for pure vanadium and… more
Date: December 1, 1989
Creator: Hull, A. B.; Chopra, O. K.; Loomis, B. & Smith, D.
Item Type: Refine your search to only Article
open access

Compatibility Grab Sampling and Analysis Plan

Description: This document details the plan which serves as the contractual agreement between the Characterization Program, Sampling Operations, and WHC 222-S Laboratory. The scope of this plan is to provide guidance for the sampling and analysis of samples for waste compatibility purposes.
Date: September 1, 1995
Creator: Jones, J.M.
Item Type: Refine your search to only Report
open access

Compatibility grab sampling and analysis plan for fiscal year 1999

Description: This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for grab samples obtained to address waste compatibility. Analytical requirements are taken from two revisions of the Compatibility data quality objectives (DQOs). Revision 1 of the DQO (Fowler 1995) listed analyses to be performed to meet both safety and operational data needs for the Compatibility program. Revision 2A of the… more
Date: May 12, 1999
Creator: Sasaki, L. M.
Item Type: Refine your search to only Report
open access

Compatibility Grab Sampling and Analysis Plan for FY 2000

Description: This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for grab samples obtained to address waste compatibility. It is written in accordance with requirements identified in Data Quality Objectives for Tank Farms Waste Compatibility Program (Mulkey et al. 1999) and Tank Farm Waste Transfer Compatibility Program (Fowler 1999). In addition to analyses to support Compatibility, the Wa… more
Date: December 29, 1999
Creator: Sasaki, L. M.
Item Type: Refine your search to only Report
open access

Compatibility in space reactor fuel systems

Description: Isothermal out-of-pile tests for compatibility between Nb-1Zr, tungsten or rhenium, and UN identified high-temperature interactions. These tests demonstrated uranium transport to the inner surface of the cladding and zirconium transport from the cladding to the pellet surface. A URe/sub 2/ layer was found on the rhenium barrier of tests performed at 1800 K. No other reactions between UN and rhenium were observed. Interdiffusion of rhenium and tungsten with Nb-1Zr was consistent with rates repor… more
Date: March 1, 1988
Creator: Mason, R.E. & Matthews, R.B.
Item Type: Refine your search to only Report
open access

The Compatibility of a Number of Metals and Alloys With Graphite

Description: The interaction between graphite and a number of metals and alloys was studied at 1850 deg F in 250-hr tests. Some materials were also tested at 1650 and 1850 deg F in 1000-hr tests. The graphite was heated in intimate contact with the test metal in welded metallic capsules. The exen of the reaction was judged on the basis of metallographic examinations and hardness traverses on cross sections of the reacted elements. Copper was the least reactive material tested in contact with graphite. Nicke… more
Date: April 14, 1958
Creator: Gerds, A.F. & Mallett, M.W.
Item Type: Refine your search to only Report
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