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147,238 Matching Results
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Pressure-induced Breaking of Equilibrium Flux Surfaces in the W7AS Stellarator
Calculations are presented for two shots in the W7AS stellarator which differ only in the magnitude of the current in the divertor control coil, but have very different values of experimentally attainable β (<β> ≈ 2.7% versus <β> ≈ 1.8%). Equilibrium calculations find that a region of chaotic magnetic field line trajectories fills approximately the outer 1/3 of the cross-section in each of these configurations. The field lines in the stochastic region are calculated to behave as if the flux surfaces are broken only locally near the outer midplane and are preserved elsewhere. The calculated magnetic field line diffusion coefficients in the stochastic regions for the two shots are consistent with the observed differences in the attainable β, and are also consistent with the differences in the reconstructed pressure profiles.
Date:
April 24, 2007
Creator:
A. Reiman, M.C. Zarnstorff, D. Monticello, A. Weller, J. Geiger, and the W7-AS Team
Object Type:
Article
System:
The UNT Digital Library
Gordon Conference - Cluster, Nanocrystals and Nanostructures - July 29th - August 3rd, 2007
None
Date:
June 14, 2007
Creator:
A. Welford Castleman, Jr.
Object Type:
Report
System:
The UNT Digital Library
Buffer Chemical Polishing and RF Testing of the 56 MHz SRF Cavity
N/A
Date:
January 1, 2009
Creator:
A., Burrill
Object Type:
Report
System:
The UNT Digital Library
IBS and Expected Luminosity Performance For RHIC Beams At Top Energy With 56 MHz SRF Cavity
N/A
Date:
October 1, 2008
Creator:
A., Fedotov
Object Type:
Report
System:
The UNT Digital Library
IBS and Potential Luminosity Improvement for RHIC Operation Below Transition Energy
N/A
Date:
January 1, 2009
Creator:
A., Fedotov
Object Type:
Report
System:
The UNT Digital Library
RHIC Performance with 56 MHz RF and Gold Ion Beams Pre-cooled at Lower Energy
N/A
Date:
October 1, 2008
Creator:
A., Fedotov
Object Type:
Report
System:
The UNT Digital Library
Emittance Reduction between EBIS LINAC and Booster by Electron Beam Cooling - Is Single Pass Cooling Possible?
N/A
Date:
April 1, 2008
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Issues Concerning High Current Low Energy Electron Beams Required for Ion Cooling between EBIS LINAC and Booster
N/A
Date:
March 1, 2009
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Novel Source Ionizer Options for Polarized Ions
N/A
Date:
September 1, 2000
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Parallel Ion Energy Spread Due to Interaction With an Electron Bunch in the RHIC Electron Beam Cooling Solenoid
N/A
Date:
June 1, 2003
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Part II/Addendum Electron Beam Cooling between EBIS LINAC and Booster; Is Single Pass Cooling Possible?
N/A
Date:
July 1, 2008
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Plasma Lens for Super Neutrino Beam at BNL and Other Applications
N/A
Date:
November 1, 2005
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Plasma Micro-Stability Analysis for the RHIC Electron Beam Cooler
N/A
Date:
January 1, 2004
Creator:
A., Hershcovitch
Object Type:
Report
System:
The UNT Digital Library
Polarized proton beam acceleration with a single Siberian Snake in each RHIC ring
N/A
Date:
March 1, 2000
Creator:
A., Lehrach; Luccio, A. U. & Roser, T.
Object Type:
Report
System:
The UNT Digital Library
Electron Gun for RHIC EBIS
N/A
Date:
July 1, 2006
Creator:
A., Pikin
Object Type:
Report
System:
The UNT Digital Library
Optical simulations of the ion beam emittance growth in different types of a gridded lens
N/A
Date:
April 1, 2007
Creator:
A., Pikin
Object Type:
Report
System:
The UNT Digital Library
Spherical Aberration Corrections for an Electrostatic Gridded Lens
N/A
Date:
May 1, 2008
Creator:
A., Pikin
Object Type:
Report
System:
The UNT Digital Library
Optical, Thermal and Stress Simulations of a 300-kwatt Electron Collector
N/A
Date:
July 1, 2006
Creator:
A., Pikin; Kponou, A. & Snydstrup, L.
Object Type:
Report
System:
The UNT Digital Library
Cancellation of the Chromatic Effects with proper Field Profile
N/A
Date:
April 1, 2004
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
CW Mode of Operation of a Proton FFAG Accelerator
N/A
Date:
September 1, 2005
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
Feasibility Study of a 1.5-GeV Proton FFAG in the AGS Tunnel
N/A
Date:
June 1, 2004
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
FFAG Accelerator Proton Driver for Neutrino Factory
N/A
Date:
October 1, 2005
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
Generalization of the ERIT Principle and Method
N/A
Date:
February 1, 2008
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library
Revision of the Adjusted Field Profile Estimate Criterion
N/A
Date:
August 1, 2005
Creator:
A., Ruggiero
Object Type:
Report
System:
The UNT Digital Library