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1.
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Impedance Group Summary
/ Blaskiewicz, M ; Dooling, J (Argonne) ; Dyachkov, M (TRIUMF) ; Fedotov, M ; Gluckstern, R ; Hahn, H (Brookhaven) ; Huang, H ; Kurennoy, S (Los Alamos) ; Linnecar, T (CERN) ; Shaposhnikova, E et al.
The impedance working group was charged to reply to the following 8 questions relevant to the design of high-intensity proton machines such as the SNS or the FNAL driver. These questions were first discussed one by one in the whole group, then each ne of them assigned to one member to summarize [...]
SLAC-REPRINT-1999-004.-
1999 - 6 p.
- Published in : AIP Conf. Proc. 496 (1999) 385-390
In : Workshop on Instabilities of High Intensity Hadron Beams in Rings, Upton, NY, USA, 28 Jun - 1 Jul 1999, pp.385-390
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2.
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Device and Technique for In-situ Coating of the RHIC Cold Bore Vacuum Tubes with Thick OFHC
/ Hershcovitch, Ady (RIKEN BNL) ; Blaskiewicz, Michael (RIKEN BNL) ; Brennan, Joseph (RIKEN BNL) ; Fischer, Wolfram (RIKEN BNL) ; Liaw, Chong-Jer (RIKEN BNL) ; Meng, Wuzheng (RIKEN BNL) ; Todd, Robert (RIKEN BNL) ; Custer, Art (Unlisted, US) ; Erickson, Mark (Unlisted, US) ; Jamshidi, Nader (Unlisted, US) et al.
To mitigate electron clouds & unacceptable ohmic heating problems in RHIC, we developed a robotic plasma deposition technique & device to in-situ coat the RHIC 316LN SS cold bore tubes based on mobile mole mounted magnetrons for OFHC deposition. Scrubbed Cu has low SEY and suppress electron cloud formation. [...]
2013 - 3 p.
- Published in : (2013) , pp. THPFI093
Fulltext: PDF; External link: Published version from JACoW
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.3508
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3.
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4.
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Status of head-on beam-beam compensation in RHIC
/ Fischer, W. (Brookhaven) ; Altinbas, Z. (Brookhaven) ; Anerella, M. (Brookhaven) ; Blaskiewicz, M. (Brookhaven) ; Bruno, D. (Brookhaven) ; Costanzo, M. (Brookhaven) ; Dawson, W.C. (Brookhaven) ; Gassner, D.M. (Brookhaven) ; Gu, X. (Brookhaven) ; Gupta, R.C. (Brookhaven) et al.
In polarized proton operation, the performance of the Relativistic Heavy Ion Collider (RHIC) is limited by the head-on beam-beam effect. To overcome this limitation, two electron lenses are under commissioning. [...]
arXiv:1410.5315.-
2014-07-17 - 12 p.
- Published in : (2014) , pp. 109-120
Fulltext: PDF; Published version from CERN: PDF; External link: Preprint
In : ICFA Mini-Workshop on Beam-Beam Effects in Hadron Colliders, pp.109-120
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5.
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Transverse impedance measurements in RHIC and the AGS
/ Biancacci, N (CERN) ; Dutheil, Y (BNL) ; Blaskiewicz, M (BNL) ; Liu, C (BNL) ; Mernick, K (BNL) ; Minty, M (BNL) ; White, S (BNL)
The RHIC luminosity upgrade program aims for an increase of the polarized proton luminosity by a factor 2. To achieve this goal a significant increase in the beam intensity is foreseen. [...]
CERN-ACC-2014-0126.-
Geneva : CERN, 2014 - 5 p.
- Published in : 10.18429/JACoW-IPAC2014-TUPRI071
Fulltext: PDF; External link: Published version from JaCoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.1730
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6.
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Studies on stochastic cooling of heavy ions in the LHC
/ Schaumann, M (CERN ; RWTH Aachen U.) ; Jowett, J M (CERN) ; Salvant, B (CERN) ; Wendt, M (CERN) ; Blaskiewicz, M (BNL, C-A Dept.) ; Verdú-Andrés, S (BNL, C-A Dept.)
Future high luminosity heavy-ion operation of the LHC will be dominated by very rapid luminosity decay due to the large collision cross-section and, to a lesser extent, emittance growth from intra-beam scattering (IBS) due to the high bunch intensities. A stochastic cooling system could reduce the emittance far below its initial value and reduce the losses from debunching during collisions, allowing more of the initial beam intensity to be converted into integrated luminosity before the beams are dumped. [...]
CERN-ACC-2014-0083.-
Geneva : CERN, 2014 - 4 p.
Fulltext: PDF; External link: Published version from JaCoW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.1030
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7.
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Recent RHIC in-situ coating technology developments
/ Hershcovitch, A. (Brookhaven) ; Blaskiewicz, M. (Brookhaven) ; Brennan, J.M. (Brookhaven) ; Chawla, A. (Brookhaven) ; Fischer, W. (Brookhaven) ; Liaw, C-J (Brookhaven) ; Meng, W. (Brookhaven) ; Todd, R. (Brookhaven) ; Custer, A. ; Erickson, M. et al.
To rectify the problems of electron clouds observed in RHIC and unacceptable ohmic heating for superconducting magnets that can limit future machine upgrades, we started developing a robotic plasma deposition technique for $in-situ$ coating of the RHIC 316LN stainless steel cold bore tubes based on staged magnetrons mounted on a mobile mole for deposition of Cu followed by amorphous carbon (a-C) coating. The Cu coating reduces wall resistivity, while a-C has low SEY that suppresses electron cloud formation. [...]
arXiv:1308.0125.-
2013-04-22 - 8 p.
- Published in : AIP Conf. Proc. C: 1206051 (2013) , pp. 251-258
Preprint: PDF; Published version from CERN: PDF; External link: Preprint
In : ECLOUD’12: Joint INFN-CERN-EuCARD-AccNet Workshop on Electron-Cloud Effects, pp.251-258
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8.
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Potential of stochastic cooling of heavy ions in the LHC
/ Schaumann, M (CERN) ; Jowett, JM (CERN) ; Blaskiewicz, M (BNL)
The dynamics of the high intensity lead beams in the LHC are strongly influenced by intra-beam scattering (IBS), leading to significant emittance growth and particle losses at all energies. Particle losses during collisions are dominated by nuclear electromagnetic processes and the debunching effect arising from the influence of IBS, resulting in a non-exponential intensity decay during the fill and short luminosity lifetimes. [...]
CERN-ATS-2013-043.-
Geneva : CERN, 2013 - 3 p.
Fulltext: CERN-ATS-2013-043 - PDF; tupm1ha02 - PDF;
In : International Workshop on Beam Cooling and Releated Topics, Mürren, Switzerland, 10 - 14 Jun 2013, pp.TUPM1HA02
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9.
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Optics Measurements and Corrections at RHIC
/ Bai, M (Brookhaven) ; Aronson, J (Brookhaven) ; Blaskiewicz, M (Brookhaven) ; Luo, Y (Brookhaven) ; Robert-Demolaize, G (Brookhaven) ; White, S (Brookhaven) ; Vanbavinckhove, G (CERN)
The further improvement of RHIC luminosity performance requires more precise understanding of the RHIC modeling. Hence, it is necessary to minimize the beta-beat, deviation of measured beta function from the calculated beta functions based on an model. [...]
2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. TUPPC056
External link: Published from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.1299-1301
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10.
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Gluons and the quark sea at high energies: distributions, polarization, tomography
/ Boer, Daniel (Groningen U.) ; Diehl, Markus (DESY) ; Milner, Richard (MIT) ; Venugopalan, Raju (Brookhaven) ; Vogelsang, Werner (Tubingen U.) ; Kaplan, David (Washington U., Seattle) ; Montgomery, Hugh (Jefferson Lab) ; Vigdor, Steven (Brookhaven) ; Accardi, A. (Jefferson Lab) ; Aschenauer, E.C. (Brookhaven) et al.
This report is based on a ten-week program on "Gluons and the quark sea at high-energies", which took place at the Institute for Nuclear Theory in Seattle in Fall 2010. [...]
arXiv:1108.1713 ; SLAC-R-995 ; INT-PUB-11-034 ; BNL-96164-2011 ; JLAB-THY-11-1373 ; INT-PUB-11-034 ; BNL-96164-2011 ; JLAB-THY-11-1373.
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2011 - 547.
JLab Document Server - SLAC Document Server - Full text
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