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5,901 Matching Results
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Cost-Effective Silicon Wafers for Solar Cells
Advanced Research Projects Agency-Energy project sheet summarizing general information about a new program for hydrogen fuel cell vehicles (project title "Direct Wafer Enabling Terawatt Photovoltaics") including critical needs, innovation and advantages, impacts, and contact information. This sheet is the first open solicitation, announcing funding opportunities for involvement in the project.
Date:
May 11, 2012
Creator:
1366 Technologies, Inc.
Object Type:
Text
System:
The UNT Digital Library
Local Effects of Biased Electrodes in the Divertor of NSTX
The goal of this paper is to characterize the effects of small non-axisymmetric divertor plate electrodes on the local scrape-off layer plasma. Four small rectangular electrodes were installed into the outer divertor plates of NSTX. When the electrodes were located near the outer divertor strike point and biased positively, there was an increase in the nearby probe currents and probe potentials and an increase in the LiI light emission at the large major radius end of these electrodes. When an electrode located farther outward from the outer divertor strike point was biased positively, there was sometimes a significant decrease in the LiI light emission at the small major radius end of this electrode, but there were no clear effects on the nearby probes. No non-local effects were observed with the biasing of these electrodes.
Date:
May 7, 2012
Creator:
: S. Zweben, M.D. Campanell, B.C. Lyons, R.J. Maqueda, Y. Raitses, A.L. Roquemore and F. Scotti
Object Type:
Report
System:
The UNT Digital Library
Epicyclic Twin-helix Magnetic Structure for Parametric-resonance Ionization Cooling
ParaÂmetÂric-resÂoÂnance IonÂizaÂtion CoolÂing (PIC) is enÂviÂsioned as the final 6D coolÂing stage of a high-luÂmiÂnosÂiÂty muon colÂlidÂer. ImÂpleÂmentÂing PIC imÂposÂes strinÂgent conÂstraints on the coolÂing chanÂnel's magÂnetÂic opÂtics deÂsign. This paper preÂsents a linÂear opÂtics soÂluÂtion comÂpatÂiÂble with PIC. Our soÂluÂtion conÂsists of a suÂperÂpoÂsiÂtion of two opÂpoÂsite-heÂlicÂiÂty equal-peÂriÂod and equal-strength heÂliÂcal dipole harÂmonÂics and a straight norÂmal quadrupole. We demonÂstrate that such a sysÂtem can be adÂjustÂed to meet all of the PIC linÂear opÂtics reÂquireÂments while reÂtainÂing large acÂcepÂtance.
Date:
May 1, 2010
Creator:
A. Afanasev, R.P. Johnson, Y.S. Derbenev, V.S. Morozov
Object Type:
Article
System:
The UNT Digital Library
Analysis of Vernier Scans during the PP2PP run in 2009 (pp at 100 GeV/beam)
N/A
Date:
May 1, 2012
Creator:
A., Drees
Object Type:
Report
System:
The UNT Digital Library
Semi-analytical description of the modular section of the coherent electron cooling via integral transforms
N/A
Date:
May 12, 2013
Creator:
A., Elizarov & Litvinenko, V.
Object Type:
Article
System:
The UNT Digital Library
Shielding of a hadron in a finite e-beam
The thorough study of coherent electron cooling, the modern cooling technique capable to deal with accelerators operating in the range of few TeVs, rises many interesting questions. One of them is a shielding dynamics of a hadron in an electron beam. Now this effect is computed analytically in the infinite beam approximation. Many effects are drastically different in finite and infinite plasmas. Here we propose a method to compute the dynamical shielding effect in a finite cylindrical plasma - the realistic model of an electron beam in accelerators.
Date:
May 20, 2012
Creator:
A., Elizarov; Litvinenko, V. & Wang, G.
Object Type:
Article
System:
The UNT Digital Library
Towards demonstration of electron cooling with bunched electron beam
N/A
Date:
May 1, 2012
Creator:
A., Fedotov
Object Type:
Report
System:
The UNT Digital Library
Device and technique for in-situ coating of the RHIC cold bore vacuum tubes with thick OFHC
N/A
Date:
May 12, 2013
Creator:
A., Hershcovitch; Blaskiewicz, M.; Brennan, J. M.; Chawla, A.; Custer, A.; Erickson, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Optics modification of the electron collector for the Relativistic Heavy Ion Collider Electron Beam Ion Source
N/A
Date:
May 1, 2012
Creator:
A., Pikin; Alessi, J.G.; Beebe, E.N.; Raparia, D. & Snydstrup, L.
Object Type:
Report
System:
The UNT Digital Library
Optics modification of the electron collector for the Relativistic Heavy Ion Collider Electron Beam Ion Source
N/A
Date:
May 1, 2012
Creator:
A., Pikin; Alessi, J.G.; Beebe, E.N.; Raparia, D. & Snydstrup, L.
Object Type:
Report
System:
The UNT Digital Library
Progress of Bep Treatments on Nb at JLAB
Recent experimental results have indicated that Buffered Electropolishing (BEP) is a promising candidate for the next generation of surface treatment technique for Nb superconducting radio frequency (SRF) cavities to be used in particle accelerators. In order to lay the foundation for using BEP as the next generation surface treatment technique for Nb SRF cavities, some fundamental aspects of BEP treatments for Nb have to be investigated. In this report, recent progress on BEP study at JLab is shown. Improvements on the existing vertical BEP are made to allow water cooling from outside of a Nb single cell cavity in addition to cooling provided by acid circulation so that the temperature of the cavity can be stable during processing. Some investigation on the electrolyte mixture was performed to check the aging effect of the electrolyte. It is shown that good polishing results can still be obtained on Nb at a current density of 171 mA/cm when the BEP electrolyte was at the stationary condition and was more than 1.5 years old.
Date:
May 1, 2010
Creator:
A.T. Wu, S. Jin, R.A. Rimmer,X.Y. Lu, K. Zhao
Object Type:
Article
System:
The UNT Digital Library
[Project Summary: EcoSpatial Information Database (ESID)]
Summary describing the work completed at AMEC Environment & Infrastructure, Inc. for the EcoSpatial Information Database (ESID). It includes background information on the project funding and sponsorship, goals, methodology, and findings.
Date:
May 2014
Creator:
AMEC Environment & Infrastructure, Inc.
Object Type:
Text
System:
The UNT Digital Library
Measurement of $D^{* /-}$ Meson Production in Jets from Pp Collisions at Sqrt(S) = 7 TeV with the ATLAS Detector
None
Date:
May 6, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Inclusive and Dijet Cross-sections of b-jets in pp Collisions at sqrt(s) = 7 TeV with the ATLAS Detector
None
Date:
May 28, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Inclusive Isolated Prompt Photon Cross-Section in $Pp$ Collisions at $\sqrt{s}=7$ TeV Using 35 Pb-1 of ATLAS Data
None
Date:
May 31, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Inclusive $W^\pm$ and Z/Gamma Cross Sections in the Electron and Muon Decay Channels in $Pp$ Collisions at $\sqrt{s}=7$ TeV with the ATLAS Detector
None
Date:
May 29, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Pseudorapidity and Transverse Momentum Dependence of the Elliptic Flow of Charged Particles in Lead-Lead Collisions at $\sqrt{s_{NN}}=2.76$ TeV with the ATLAS Detector
None
Date:
May 31, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for a Heavy Neutral Particle Decaying Into an Electron and a Muon Using 1 Fb^-1 of ATLAS Data
None
Date:
May 30, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for Extra Dimensions Using Diphoton Events in 7 TeV Proton-Proton Collisions with the ATLAS Detector
None
Date:
May 7, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC
None
Date:
May 29, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for New Phenomena in ttbar Events with Large Missing Transverse Momentum in Proton-Proton Collisions at sqrt(s)=7$ TeV With the ATLAS Detector
None
Date:
May 29, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for Pair Production of First Or Second Generation Leptoquarks in Proton-Proton Collisions at sqrt(s)=7 TeV using the ATLAS detector at the LHC
None
Date:
May 21, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for Strong Gravity Signatures in Same-Sign Dimuon Final States Using the ATLAS Detector at the LHC
None
Date:
May 20, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
Search for Supersymmetry in Final States With Jets, Missing Transverse Momentum And One Isolated Lepton in Sqrt{s} = 7 TeV Pp Collisions Using 1 $Fb^{-1}$ of ATLAS Data
None
Date:
May 28, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library