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1.
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Ultimate Limit of Future Colliders
/ Bai, Mei (SLAC) ; Shiltsev, Vladimir (Fermilab) ; White, G. ; Zimmermann, Frank (CERN)
With seven operational colliders in the world and two under construction, the international particle physics community not only actively explores options for the next facilities for detailed studies of the Higgs/electroweak physics and beyond-the-LHC energy frontier, but also seeks a clear picture of the limits of the colliding beams method. In this paper, we try to consolidate various recent efforts in identifying physics limits of colliders in conjunction with societal sustainability, and share our thoughts about the perspective of reaching the ultimate collider that is at the quantum limit..
arXiv:2209.04009; FERMILAB-CONF-22-574-AD; FERMILAB-CONF-22-987-AD.-
2022-10-20 - 4 p.
- Published in : JACoW NAPAC 2022 (2022) 321-324
Fulltext: FERMILAB-CONF-22-987-AD - PDF; FERMILAB-CONF-22-574-AD - PDF; 2209.04009 - PDF; Publication - PDF; External links: Fermilab Library Server; Fermilab Library Server
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.TUZD3
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2.
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Review of Accelerator Limitations and Routes to Ultimate Beams
/ Zimmermann, Frank (CERN) ; Aßmann, Ralph (DESY) ; Bai, Mei (Darmstadt, GSI) ; Franchetti, Giuliano (Darmstadt, GSI)
Various physical and technology-dependent limits are encountered for key performance parameters of accelerators such as high-gradient acceleration, high-field bending, beam size, beam brightness, beam intensity and luminosity. This paper will review these limits and the associated challenges. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 1397-1400
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1397-1400
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3.
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4.
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Experience in Reducing Electron Cloud and Dynamic Pressure Rise in Warm and Cold Regions in RHIC
/ Zhang, S Y (BNL, Upton, Long Island, New York) ; Ahrens, Leif (BNL, Upton, Long Island, New York) ; Alessi, James (BNL, Upton, Long Island, New York) ; Bai, Mei (BNL, Upton, Long Island, New York) ; Blaskiewicz, Michael (BNL, Upton, Long Island, New York) ; Cameron, Peter (BNL, Upton, Long Island, New York) ; Connolly, Roger (BNL, Upton, Long Island, New York) ; Drees, Angelika (BNL, Upton, Long Island, New York) ; Fischer, Wolfram (BNL, Upton, Long Island, New York) ; Gullotta, Justin (BNL, Upton, Long Island, New York) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.595
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5.
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RHIC Performance as Polarized Proton Collider in Run-6
/ Ptitsyn, Vadim (BNL, Upton, Long Island, New York) ; Ahrens, Leif (BNL, Upton, Long Island, New York) ; Bai, Mei (BNL, Upton, Long Island, New York) ; Barton, Donald (BNL, Upton, Long Island, New York) ; Blaskiewicz, Michael (BNL, Upton, Long Island, New York) ; Bravar, Alessandro (BNL, Upton, Long Island, New York) ; Brennan, Joseph Michael (BNL, Upton, Long Island, New York) ; Brown, Kevin A (BNL, Upton, Long Island, New York) ; Bruno, Donald (BNL, Upton, Long Island, New York) ; Bunce, Gerry (BNL, Upton, Long Island, New York) et al.
2006 - 3 p.
External link: Published version from JACoW
In : 10th European Particle Accelerator Conference, Edinburgh, UK, 26 - 30 Jun 2006, pp.592
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6.
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Acceleration of Polarized Protons in the AGS with Two Helical Partial Snakes
/ Huang, Haixin ; Ahrens, Leif ; Bai, Mei ; Bravar, Alessandro ; Brown, Kevin A ; Bunce, Gerry ; Courant, Ernest D ; Gardner, Chris J ; Glenn, Joseph ; Gupta, Ramesh C et al.
The RHIC spin program requires 2*1011
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1404
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7.
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Optimization of AGS Polarized Proton Operation with the Warm Helical Snake
/ Takano, Junpei ; Ahrens, Leif ; Bai, Mei ; Brown, Kevin A ; Gardner, Chris J ; Glenn, Joseph ; Hattori, Toshiyuki ; Huang, Haixin ; Luccio, Alfredo U ; MacKay, William W et al.
A normal conducting helical dipole partial Siberian snake (Warm Snake) has been installed in the Alternating Gradient Synchrotron (AGS) at Brookhaven National Laboratory (BNL) for overcoming all of imperfection depolarizing resonances and reducing the transverse coupling resonances caused by the solenoidal Siberian snake which had been operated in AGS before the last polarized run. The polarized proton beam has been accelerated successfully with the warm snake and the polarization at extraction of the AGS was increased to 50% as opposed to 40% with the solenoidal snake. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1003
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8.
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Measurement and Optimization of Local Coupling from RHIC BPM Data
/ Calaga, Rama ; Abeytunge, Sanjee ; Bai, Mei ; Fischer, Wolfram ; Franchi, Andrea ; Tomas, Rogelio
Global coupling in RHIC is routinely corrected by using three skew quadrupole families to minimize the tune split. In this paper we aim to re-optimize the coupling at top energy by minimizing resonance driving terms and the C-matrix in two steps: 1. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3553
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9.
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ERL Based Electron-Ion Collider eRHIC
/ Litvinenko, Vladimir N ; Ahrens, Leif ; Bai, Mei ; Beebe-Wang, Joanne ; Ben-Zvi, Ilan ; Blaskiewicz, Michael ; Brennan, Joseph M ; Calaga, Rama ; Chang, Xiangyun ; Deshpande, Abhay A et al.
We present the designs of a future polarized electron-hadron collider, eRHIC* based on a high current super-conducting energy-recovery linac (ERL) with energy of electrons up to 20 GeV. We plan to operate eRHIC in both dedicated (electron-hadrons only) and parallel(with the main hadron-hadron collisions) modes. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2768
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10.
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Beam Induced Pressure Rise at RHIC
/ Zhang, S Y ; Alessi, James ; Bai, Mei ; Blaskiewicz, Michael ; Cameron, Peter ; Drees, Angelika ; Fischer, Wolfram ; Gullotta, Justin ; He, Ping ; Hseuh Hsiao Chaun et al.
Beam induced pressure rise in RHIC warm sections is currently one of the machine intensity and luminosity limits. This pressure rise is mainly due to electron cloud effects. [...]
2005
External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.4308
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