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205 kA pulse power supply for neutrino focusing horns

Description: A new underground beamline is being constructed at Fermilab to generate and focus a beam of neutrinos on a detector 450 miles away in Soudan, Minnesota. A compact modulator utilizing capacitive energy storage and SCRs as the switching element has been built and tested at Fermilab. The 0.9 F capacitor bank operates at less than 1 kV. It delivers its output of up to 240 kA directly to the two series connected focusing horns via a multi-layer radiation hard stripline [1]. Dual pulse width capabili… more
Date: June 21, 2002
Creator: Kenneth R. Bourkland, Kevin Roon and David Tinsley
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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2002 Gordon Research Conference on CATALYSIS. Final Progress Report

Description: The Gordon Research Conference (GRC) on CATALYSIS was held at Colby-Sawyer College from 6/23/02 thru 6/28/02. The Conference was well-attended with 118 participants. The attendees represented the spectrum of endeavor in this field coming from academia, industry, and government laboratories, both U.S. and foreign scientists, senior researchers, young investigators, and students.
Date: June 28, 2002
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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[3H]Azidodantrolene photoaffinity labeling, synthetic domain peptides and monoclonal antibody reactivity identify the dantrolene binding sequence on RyR1

Description: Dantrolene is a drug that suppresses intracellular Ca2+ release from sarcoplasmic reticulum in normal skeletal muscle and is used as a therapeutic agent in individuals susceptible to malignant hyperthermia. Though its precise mechanism of action has not been elucidated, we have identified the N-terminal region (amino acids 1-1400) of the skeletal muscle isoform of the ryanodine receptor (RyR1), the primary Ca2+ release channel in sarcoplasmic reticulum, as a molecular target for dantrolene usin… more
Date: June 14, 2002
Creator: Paul-Pletzer, Kalanethee; Yamamoto, Takeshi; Bhat, Manju B.; Ma, Jianjie; Ikemoto, Noriaki; Jimenez, Leslie S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Abort Gap Cleaning in RHIC

Description: During the RHIC Au-run in 2001 the 200 MHz storage cavity system was used for the first time. The rebucketing procedure caused significant beam debunching in addition to amplifying debunching due to other mechanisms. At the end of a four hour store, debunched beam could account for approximately 30%-40% of the total beam intensity. Some of it will be in the abort gap. In order to minimize the risk of magnet quenching due to uncontrolled beam losses at the time of a beam dump, a combination of a… more
Date: June 3, 2002
Creator: Drees, A.; Ahrens, L.; Fliller, R., III; Gassner, D.; McIntyre, G. T.; Michnoff, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Abrasive wear behavior of heat-treated ABC-silicon carbide

Description: Hot-pressed silicon carbide, containing aluminum, boron, and carbon additives (ABC-SiC), was subjected to three-body and two-body wear testing using diamond abrasives over a range of sizes. In general, the wear resistance of ABC-SiC, with suitable heat treatment, was superior to that of commercial SiC.
Date: June 17, 2002
Creator: Zhang, Xiao Feng; Lee, Gun Y.; Chen, Da; Ritchie, Robert O. & De Jonghe, Lutgard C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accelerating and Colliding Polarized Protons in RHIC With Siberian Snakes

Description: We successfully injected polarized protons in both RHIC rings and maintained polarization during acceleration up to 100 GeV per ring using two Siberian snakes in each ring. Each snake consists of four helical superconducting dipoles which rotate the polarization by 180{sup o} about a horizontal axis. This is the first time that polarized protons have been accelerated to 100 GeV. We report on our experiences during commissioning and operation of collider with polarized protons.
Date: June 2, 2002
Creator: Roser, T.; Ahrens, L.; Alessi, J.; Bai, M.; Beebe-Wang, J.; Brennan, J. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Accelerator optimization using a network control and acquisition system

Description: Accelerator optimization requires detailed study of many parameters, indicating the need for remote control and automated data acquisition systems. A control and data acquisition system based on a network of commodity PCs and applications with standards based inter-application communication is being built for the l'OASIS accelerator facility. This system allows synchronous acquisition of data at high (> 1 Hz) rates and remote control of the accelerator at low cost, allowing detailed study of… more
Date: June 30, 2002
Creator: Geddes, Cameron, G.R.; Catravas, P.E.; Faure, Jerome; Toth, Csaba; van Tilborg, J. & Leemans, Wim P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ACCELERATOR PHYSICS MODEL OF EXPECTED BEAM LOSS ALONG THE SNS ACCELERATOR FACILITY DURING NORMAL OPERATION.

Description: The most demanding requirement in the design of the SNS accelerator chain is to keep the accelerator complex under hands-on maintenance. This requirement implies a hard limit for residual radiation below 100 mrem/hr at one feet from the vacuum pipe and four hours after shutdown for hundred days of normal operation. It has been shown by measurements as well as simulation [l] that this limit corresponds to 1-2 Watts/meter average beam losses. This loss level is achievable all around the machine e… more
Date: June 3, 2002
Creator: Catalan-Lasheras, N.; Cousineau, S.; Galambos, J.; Holtkamp, N.; Raparia, D.; Shafer, R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Access Grid node minimum requirements.

Description: The Access Grid is a group-to-group collaborative system developed at Argonne National Laboratory. The system is designed to support high-fidelity, high-bandwidth interactions. This document specifies the minimum requirements that need to be fulfilled for a space to be considered an Access Grid Node.
Date: June 27, 2002
Creator: Judson, I. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Active load management with advanced window wall systems: Research and industry perspectives

Description: Advanced window wall systems have the potential to provide demand response by reducing peak electric loads by 20-30% in many commercial buildings through the active control of motorized shading systems, switchable window coatings, operable windows, and ventilated double-skin facade systems. These window strategies involve balancing daylighting and solar heat gains, heat rejection through ventilation, and night-time natural ventilation to achieve space-conditioning and lighting energy use reduct… more
Date: June 1, 2002
Creator: Lee, Eleanor S.; Selkowitz, Stephen E.; Levi, Mark S.; Blanc, Steven L.; McConahey, Erin; McClintock, Maurya et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Adaptive Response Against Spontaneous Neoplastic Transformation In Vitro Induced by Ionizing Radiation

Description: response curve for radiation-induced neoplastic transformation of HeLa x skin fibroblast human hybrid cells in vitro under experimental conditions where an adaptive response, if it were induced, would have an opportunity to be expressed. During the first two years of the grant an exhaustive series of experiments were performed and the resulting data were reported at the 2000 Annual Meeting of the Radiation Research Society and then subsequently published (Redpath et al., 2001). The data showed … more
Date: June 1, 2002
Creator: Redpath, J. Leslie
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Advanced Photon Source linac modulators PSpice simulation and upgrade.

Description: The APS linac modulators provide DC pulses to Thales 35/45-MW klystrons. The modulators are pulse forming network (PFN)-type pulsers with EMI 40-kV switch-mode charging supplies. The PFN consists of two 8-cell lines connected in parallel. EEV CX1836A thyratrons are used as discharge switches. The PSpice simulation of the modulators using OrCAD release 9.1 made it possible to find appropriate parameters of RC circuits that reduce high-frequency ringing of the pulse transformer primary voltage. I… more
Date: June 28, 2002
Creator: Cours, A. & Smith, T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Advanced Test Reactor (ATR) Facility 10CFR830 Safety Basis Related to Facility Experiments

Description: The Idaho National Engineering and Environmental Laboratory (INEEL) Advanced Test Reactor (ATR), a DOE Category A reactor, was designed to provide an irradiation test environment for conducting a variety of experiments. The ATR Safety Analysis Report, determined by DOE to meet the requirements of 10 CFR 830, Subpart B, provides versatility in types of experiments that may be conducted. This paper addresses two general types of experiments in the ATR facility and how safety analyses for experime… more
Date: June 1, 2002
Creator: Tomberlin, Terry Alan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Advanced Test Reactor (ATR) Facility 10CFR830 Safety Basis Related to Facility Experiments

Description: The Idaho National Engineering and Environmental Laboratory (INEEL) Advanced Test Reactor (ATR), a DOE Category A reactor, was designed to provide an irradiation test environment for conducting a variety of experiments. The ATR Safety Analysis Report, determined by DOE to meet the requirements of 10 CFR 830, Subpart B, provides versatility in types of experiments that may be conducted. This paper addresses two general types of experiments in the ATR facility and how safety analyses for experime… more
Date: June 19, 2002
Creator: Tomberlin, T.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Agent-Based Mediation and Cooperative Information Systems

Description: This report describes the results of research and development in the area of communication among disparate species of software agents. The two primary elements of the work are the formation of ontologies for use by software agents and the means by which software agents are instructed to carry out complex tasks that require interaction with other agents. This work was grounded in the areas of commercial transport and cybersecurity.
Date: June 2, 2002
Creator: PHILLIPS, LAURENCE R.; LINK, HAMILTON E. & GOLDSMITH, STEVEN Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Airborne measurements of carbonaceous aerosols in southern Africa during the dry, biomass burning season

Description: Particulate matter collected aboard the University of Washington's Convair-580 research aircraft over southern Africa during the dry, biomass burning season was analyzed for total carbon, organic carbon, and black carbon contents using thermal and optical methods. Samples were collected in smoke plumes of burning savanna and in regional haze. A known artifact, produced by the adsorption of organic gases on the quartz filter substrates used to collect the particulate matter samples, comprised a … more
Date: June 17, 2002
Creator: Kirchstetter, Thomas W.; Novakov, T.; Hobbs, Peter V. & Magi, Brian
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Alternative Ionization Methods for Particle Mass Spectrometry

Description: The objective of this project is to enhance the capabilities of a real-time airborne particle mass spectrometer by implementing matrix-independent methods for sample ionization. The enhancements should result in improved sensitivity for trace substances and, more importantly, permit quantitative determination of the presence of target species in microparticle samples on an individual particle basis.
Date: June 1, 2002
Creator: Whitten, William B. & Reilly, Peter T. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Amorphous Diamond MEMS and Sensors

Description: This report describes a new microsystems technology for the creation of microsensors and microelectromechanical systems (MEMS) using stress-free amorphous diamond (aD) films. Stress-free aD is a new material that has mechanical properties close to that of crystalline diamond, and the material is particularly promising for the development of high sensitivity microsensors and rugged and reliable MEMS. Some of the unique properties of aD include the ability to easily tailor film stress from compre… more
Date: June 1, 2002
Creator: SULLIVAN, JOHN P.; FRIEDMANN, THOMAS A.; ASHBY, CAROL I.; DE BOER, MAARTEN P.; SCHUBERT, W. KENT; SHUL, RANDY J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analog Amplitude Modulation of a High Voltage, Solid State Inductive Adder, Pulse Generator Using MOSFETS

Description: High voltage, solid state, inductive adder, pulse generators have found increasing application as fast kicker pulse modulators for charged particle beams. The solid state, inductive adder, pulse generator is similar in operation to the linear induction accelerator. The main difference is that the solid state, adder couples energy by transformer action from multiple primaries to a voltage summing stalk, instead of an electron beam. Ideally, the inductive adder produces a rectangular voltage puls… more
Date: June 24, 2002
Creator: Gower, E J & Sullivan, J S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of Beam Induced Pressure Increases in Rhic Warm Vacuum Sections.

Description: With increasing intensity of gold and proton beams during recent RHIC operations, pressure rises of several decades were observed at a few RHIC warm vacuum sections. The pressure increases were analyzed and compared with the beam parameters such as ion species, bunch intensity, total intensity, number ofbunches, bunch spacing and beam loss. Most of these pressure increases were found to be consistent with those induced by either beam loss and/or electron multipacting.
Date: June 2, 2002
Creator: Hseuh, H. C.; Smart, L. A. & Zhang, S. Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of Gd5(Si2Ge2) Microstructure and Phase Transition

Description: With the recent discovery of the giant magnetocaloric effect and the beginning of extensive research on the properties of Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4}, a necessity has developed for a better understanding of the microstructure and crystal structure of this family of rare earth compounds with startling phenomenological properties. The aim of this research is to characterize the microstructure of the Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4}, with X {approx_equal} 2 and its phase change by… more
Date: June 27, 2002
Creator: Meyers, John Scott
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Analysis of Subsidence Data from West Hackberry, LA

Description: Since 1983, ground surface elevation data from the US DOE West Hackberry Strategic Petroleum crude oil storage facility has been routinely collected. The data have been assimilated, analyzed, and presented in terms of absolute elevations, subsidence rate, and estimates of volumetric changes of the storage facility. The information presented impacts operations and maintenance of the facility, and provides important constraints on the interpretation of ongoing structural analyses of the facility.
Date: June 1, 2002
Creator: BAUER, STEPHEN J. & WOODRUM, STACY L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of thermal-hydrologic-mechanical behavior near an emplacement drift at Yucca Mountain

Description: A coupled thermal, hydrologic and mechanical (THM) analysis is conducted to evaluate the impact of coupled THM processes on the performance of a potential nuclear waste repository at Yucca Mountain, Nevada. The analysis considers changes in rock mass porosity, permeability, and capillary pressure caused by rock deformations during drift excavation, as well as those caused by thermo-mechanically induced rock deformations after emplacement of the heat-generating waste. The analysis consists of a … more
Date: June 17, 2002
Creator: Rutqvist, Jonny & Tsang, Chin-Fu
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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