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Prospects for top at CDF

Description: During the next two years, the Fermilab Tavatron is expected to deliver approximately 100pb{sup {minus}1} of integrated luminosity. We describe improvements to the CDF detector since the 1988--89 collider run and discuss the prospects for the discovery of the top quark during the 1992--93 collider runs.
Date: June 3, 1992
Creator: Gerdes, D. (Chicago Univ., IL (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Comparison between calculation and measurement of energy deposited by 800 MeV protons

Description: The High Energy Transport Code, HETC, was obtained from the Radiation Shielding Information Center (RSIC) at Oak Ridge National Laboratory and altered as necessary to run on a CDC 7600 using the LTSS software in use at LLNL. HETC was then used to obtain calculated estimates of energy deposited, for comparison with a series of benchmark experiments done by LLNL. These experiments used proton beams of various energies incident on well-defined composite targets in good geometry. In this report, tw… more
Date: April 3, 1980
Creator: Loewe, W.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Neutron scattering analysis with microscopic optical model potentials

Description: A review of microscopic optical model potentials used in the analysis of neutron scattering and analyzing power data below 100 MeV (5 {le}E{sub n}{le}100 MeV) is presented. The quality of the fits to the data over a wide massd ({sup 6}Li-{sup 239}Pu) and energy range is discussed. It is shown that reasonably good agreement with the data is obtained with only three parameters, {lambda}{sub V}, {lambda}{sub W}, and {lambda}{sub SO}, which show a smooth mass and energy dependence. These parameters… more
Date: September 3, 1991
Creator: Hansen, L. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Atomic data needs for beam transport in gas

Description: Determination of the parameters Z/sub eff/, electrical conductivity, plasma density, and the plasma temperature is essential in the study of heavy ion beam transport in gas. The calculation of these parameters require input from atomic physics. This note is an attempt to make these needs known to atomic physicists.
Date: November 3, 1977
Creator: Yu, S. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Microchannel plate as a detector of minimum ionizing particle

Description: Micro-channel plate multipliers have been used to detect the passage of relativistic charged particles. Measurements of the detection efficiency and pulse height response versus micro-channel plate gain are presented for one, two and three micro-channel plate arrays. The probability of detecting an avalanche on the detector anode per one channel of MCP crossed by the relativistic particle was calculated. Temporal response and time jitter were measured and are reported. The track images of beam … more
Date: September 3, 1980
Creator: Oba, K; Rehak, P & Smith, S D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CDF: Recent results and future prospects

Description: We present recent results from the Collider Detector at Fermilab. Searches for the top quark have established a lower bound of M{sub top} > 91 GeV/c{sup 2} (at 95% confidence level). A measurement of B{sup o}{bar B}{sup o} mixing has been obtained from b{bar b} {yields} e{mu}, ee events. Measurements of b-quark production have been obtained from e + X events and J/{psi} + K events. The mass of the W boson has been determined to be M{sub W} = 79.91 {plus minus} 0.39 GeV/c{sup 2}. In searching fo… more
Date: March 3, 1992
Creator: Yeh, G.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Progress and prospects for soft x-ray lasing driven by high power optical lasers

Description: We will describe our optical laser pumped xuv Laser Program. To date, we have concentrated our efforts on exploding foil amplifier designs using Ne-like n=3p to 3s inversion schemes. We will describe our latest modeling results as well as measurements which demonstrate output power near the 1 MW level at 206 and 209 A and lasing at wavelengths as short as 106 A.
Date: July 3, 1986
Creator: Rosen, M.D.; Matthews, D.L. & Hagelstein, P.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CO/sub 2/-laser polishing of fused silica surfaces for increased laser damage resistance at 1. 06. mu. m

Description: Bare fused silica surfaces were prepared by subjecting the mechanically polished surface to a rastered cw CO/sub 2/ laser beam. Analysis shows that this processing causes: (a) removal of a uniform layer of fused silica; and (b) a probable re-fusing or healing of existing subsurface fractures. The fused silica removal rate is found to be a function of the laser intensity and scan rate. These surfaces are seen to have very low scatter and to be very smooth. In addition, they have exhibited entran… more
Date: April 3, 1980
Creator: Temple, P. A.; Milam, D. & Lowdermilk, W. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Local energy transfer to TLDS by neutrons and photons

Description: The local energy transferred from neutrons and photons to TLD materials with respect to energy transferred to biological tissues or air has been calculated. Experimental response of TLDs was measured for photons with energies above 1.5 keV.
Date: March 3, 1980
Creator: Singh, M. S.; Gaines, J. L. & Parlagreco, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Damage threshold of inorganic solids under free-electron-laser irradiation at 32.5 nm wavelength

Description: We exposed samples of B4C, amorphous C, chemical-vapor-deposition (CVD)-diamond C, Si, and SiC to single 25 fs-long pulses of 32.5 nm free-electron-laser radiation at fluences of up to 2.2 J/cm{sup 2}. The samples were chosen as candidate materials for x-ray free electron laser (XFEL) optics. We found that the threshold for surface-damage is on the order of the fluence required for thermal melting. For larger fluences, the crater depths correspond to temperatures on the order of the critical te… more
Date: December 3, 2007
Creator: Hau-Riege, S.; London, R. A.; Bionta, R. M.; McKernan, M. A.; Baker, S. L.; Krzywinski, J. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Transmission electron microscopy of oxide dispersion strengthened (ODS) molybdenum: effects of irradiation on material microstructure

Description: Oxide dispersion strengthened (ODS) molybdenum has been characterized using transmission electron microscopy (TEM) to determine the effects of irradiation on material microstructure. This work describes the results-to-date from TEM characterization of unirradiated and irradiated ODS molybdenum. The general microstructure of the unirradiated material consists of fine molybdenum grains (< 5 {micro}m average grain size) with numerous low angle boundaries and isolated dislocation networks. 'Ribb… more
Date: March 3, 2003
Creator: Baranwal, R. and Burke, M.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Soft X-ray synchrotron radiation investigations of actinidematerials systems utilizing X-ray emission spectroscopy and resonantinelastic X-ray scattering

Description: Synchrotron radiation (SR) methods have been utilized with increasing frequency over the past several years to study topics in actinide science, ranging from those of a fundamental nature to those that address a specifically-targeted technical need. In particular, the emergence of microspectroscopic and fluorescence-based techniques have permitted investigations of actinide materials at sources of soft x-ray SR. Spectroscopic techniques with fluorescence-based detection are useful for actinide … more
Date: January 3, 2004
Creator: Shuh, D.K.; Butorin, S.M.; Guo, J.-H. & Nordgren, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development and Testing of a Life Cycle Model and a Parameterization of Thin Mid-level Stratiform Clouds

Description: We used a cloud-resolving model (a detailed computer model of cloud systems) to evaluate and improve the representation of clouds in global atmospheric models used for numerical weather prediction and climate modeling. We also used observations of the atmospheric state, including clouds, made at DOE's Atmospheric Radiation Measurement (ARM) Program's Climate Research Facility located in the Southern Great Plains (Kansas and Oklahoma) during Intensive Observation Periods to evaluate our detailed… more
Date: March 3, 2008
Creator: Krueger, Steven K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Energy and visual comfort performance of electrochromic windowswith overhangs

Description: DOE-2 building energy simulations were conducted to determine if there were practical architectural and control strategy solutions that would enable electrochromic (EC) windows to significantly improve visual comfort without eroding energy-efficiency benefits. EC windows were combined with overhangs since opaque overhangs provide protection from direct sun which EC windows are unable to do alone. The window wall was divided into an upper and lower aperture so that various combinations of overha… more
Date: November 3, 2005
Creator: Lee, E.S. & Tavil, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Confirmatory Survey Results for the Emergency Operations Facility (EOF) at the Connecticut Yankee Haddam Neck Plant, Haddam, Connecticut

Description: The U.S. Nuclear Regulatory Commission (NRC) requested that the Oak Ridge Institute for Science and Education (ORISE) perform a confirmatory survey on the Emergency Operations Facility (EOF) at the Connecticut Yankee Haddam Neck Plant (HNP) in Haddam, Connecticut
Date: July 3, 2007
Creator: Adams, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DE-FG02-06ER15364: Final Technical Report Nanoscale Reactivity of Clays, Clay Analogues (Micas), and Clay Minerals

Description: The project objectives were to determine the nanoscale to molecular scale structure of the interface between muscovite mica and aqueous solutions containing various sorbates and to explore systematics that control the incorporation of inorganic and organic chemical components during aging of nanoparticles of iron-oxides and aluminosilicate clays. The basal surface of phyllosilicates is a primary sorbent of environmental contaminants, natural organic matter, and nutrients. Micas are also superb … more
Date: July 3, 2008
Creator: Nagy, Kathryn L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluated Decay Data for 206TI.

Description: Evaluated decay data for the {sup 206}Tl nuclide are presented, including recommended values for the half-life, {beta}- and {gamma}-ray emission energies and probabilities. Data on X-ray radiations, Auger and conversion electron energies and emission probabilities are also tabulated. Carefully evaluated data for radioactive nuclides refer to complex nuclear level schemes and tables of numerical values, which quantify fundamental nuclear structure information such as level energies and quantum n… more
Date: January 3, 2007
Creator: Kondev, F. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gated Microchannel Plate Photomultiplier For Longitudinal BeamDiagnostics

Description: A gated microchannel plate photomultiplier can be used as aneffective tool for measuring the longitudinal distribution of particlesaround most electron and high-energy proton rings. The broad availablewavelength range,low noise, and high sensitivity allow using such adevice for measuring the emitted synchrotron radiation and to extract thebeam intensity. The fast gate rise time can be used to reject strongsignals coming from filled RF buckets and avoid saturation of thephotocathode so that it i… more
Date: May 3, 2006
Creator: Byrd, John M.; De Santis, Stefano & Thurman-Keup, Randy
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recent vs from IceCube

Description: IceCube is a 1 km3 neutrino detector now being built at the South Pole. Its 4800 optical modules will detect Cherenkov radiation from charged particles produced in neutrino interactions. IceCube will search for neutrinos of astrophysical origin, with energies from 100 GeV up to 1019 eV. It will be able to separate nue, nu mu and nu tau. In addition to detecting astrophysical neutrinos, IceCube will also search for neutrinos from WIMP annihilation in the Sun and the Earth, look for low-energy (1… more
Date: October 3, 2008
Creator: Collaboration, IceCube & Klein, Spencer R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Absolute and Relative Surrogate Measurements of the 236U(n,f) Cross Section as a Probe for Angular Momentum Effects

Description: Using both the absolute and relative surrogate techniques, the {sup 236}U(n,f) cross section was deduced over an equivalent neutron energy range of 0 to 20 MeV. A 42 MeV {sup 3}He beam from the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory was used to perform a ({sup 3}He,{alpha}) pickup reaction on targets of {sup 235}U (J{sup {pi}}=7/2{sup -}) and {sup 238}U (J{sup {pi}}=0{sup +}) and the fission decay probabilities were determined. The {sup 235}U({sup 3}He,{alpha}f) and {sup 238… more
Date: April 3, 2007
Creator: Lyles, B; Bernstein, L; Burke, J; Escher, J; Thompson, I; Dietrich, F et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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U.S. Department of Energy Consequence Management Under the National Response Framework

Description: Under the Nuclear/Radiological Incident Annex of the National Response Framework, the U.S. Department of Energy (DOE) has specific responsibilities as a coordinating agency and for leading interagency response elements in the Federal Radiological Monitoring and Assessment Center (FRMAC). Emergency response planning focuses on rapidly providing response elements in stages after being notified of a nuclear/radiological incident. The use of Home Teams during the field team deployment period and re… more
Date: February 3, 2009
Creator: Guss, Don Van Etten and Paul
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technology Assessment and Roadmap for the Emergency Radiation Dose Assessment Program

Description: A Joint Interagency Working Group (JIWG) under the auspices of the Department of Homeland Security Office of Research and Development conducted a technology assessment of emergency radiological dose assessment capabilities as part of the overall need for rapid emergency medical response in the event of a radiological terrorist event in the United States. The goal of the evaluation is to identify gaps and recommend general research and development needs to better prepare the Country for mitigati… more
Date: October 3, 2005
Creator: Turteltaub, K W; Hartman-Siantar, C; Easterly, C & Blakely, W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Direct Observations of Sigma Phase Formation in Duplex Stainless Steels using In Situ Synchrotron X-Ray Diffraction

Description: The formation and growth of sigma phase in 2205 duplex stainless steel was observed and measured in real time using synchrotron radiation during 10 hr isothermal heat treatments at temperatures between 700 C and 850 C. Sigma formed in near-equilibrium quantities during the isothermal holds, starting from a microstructure which contained a balanced mixture of metastable ferrite and austenite. In situ synchrotron diffraction continuously monitored the transformation, and these results were compar… more
Date: July 3, 2006
Creator: Elmer, J W; Palmer, T A & Specht, E D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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