PAC 2005 - List of Authors

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Eidelman, Yu.I.

Paper	Title	Page
TPAT090	Simulations of High-Energy Electron Cooling	4251
	A.V. Fedotov, I. Ben-Zvi, Yu.I. Eidelman, V. Litvinenko, N. Malitsky BNL, Upton, Long Island, New York D.L. Bruhwiler Tech-X, Boulder, Colorado I.N. Meshkov, A.O. Sidorin, A.V. Smirnov, G.V. Troubnikov JINR, Dubna, Moscow Region
	Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-98CH10886. High-energy electron cooling of RHIC presents many unique features and challenges. An accurate estimate of the cooling times requires a detailed calculation of the cooling process, which takes place simultaneously with various diffusive mechanisms in RHIC. In addition, many unexplored effects of high-energy cooling in a collider complicate the task of getting very accurate estimates of cooling times. To address these high-energy cooling issues, a detailed study of cooling dynamics based on computer codes is underway at Brookhaven National Laboratory. In this paper, we present an update on code development and its application to the high-energy cooling dynamics studies for RHIC.
TPAT091	IBS for Ion Distribution Under Electron Cooling	4263
	A.V. Fedotov, I. Ben-Zvi, Yu.I. Eidelman, V. Litvinenko, G. Parzen BNL, Upton, Long Island, New York A.O. Sidorin, A.V. Smirnov, G.V. Troubnikov JINR, Dubna, Moscow Region
	Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-98CH10886. Standard models of the intra-beam scattering (IBS) are based on the growth of the rms beam parameters for a Gaussian beam distribution. As a result of electron cooling, the core of beam distribution is cooled much faster than the tails, producing a denser core. Formation of such a core is an important feature since it plays dominant role in the luminosity increase. A simple use of standard rms-based IBS approach may significantly underestimate IBS for the beam core. A detailed treatment of IBS, which depends on individual particle amplitudes, was recently proposed by Burov,* with an analytic formulation done for a Gaussian distribution. However, during the cooling process the beam distribution quickly deviates from a Gaussian profile. To understand the extent of the dense core formation in the ion distribution, the "core-tail" model for IBS, based on the diffusion coefficients for bi-Gaussian distributions, was employed in cooling studies for RHIC. In addition, the standard IBS theory was recently reformulated for rms parameters growth of a bi-Gaussian distribution by Parzen.** In this paper, we compare various approaches to IBS treatment for such distribution. Its impact on the luminosity is also discussed. A. Burov, FERMILAB-TM-2213 (2003). *G. Parzen, Tech Note C-AD/AP/150 (2004).
TPAP043	Electron Cooling of RHIC	2741
	I. Ben-Zvi, D.S. Barton, D.B. Beavis, M. Blaskiewicz, J.M. Brennan, A. Burrill, R. Calaga, P. Cameron, X.Y. Chang, R. Connolly, Yu.I. Eidelman, A.V. Fedotov, W. Fischer, D.M. Gassner, H. Hahn, M. Harrison, A. Hershcovitch, H.-C. Hseuh, A.K. Jain, P.D.J. Johnson, D. Kayran, J. Kewisch, R.F. Lambiase, V. Litvinenko, W.W. MacKay, G.J. Mahler, N. Malitsky, G.T. McIntyre, W. Meng, K.A.M. Mirabella, C. Montag, T.C.N. Nehring, T. Nicoletti, B. Oerter, G. Parzen, D. Pate, J. Rank, T. Rao, T. Roser, T. Russo, J. Scaduto, K. Smith, D. Trbojevic, G. Wang, J. Wei, N.W.W. Williams, K.-C. Wu, V. Yakimenko, A. Zaltsman, Y. Zhao BNL, Upton, Long Island, New York D.T. Abell, D.L. Bruhwiler Tech-X, Boulder, Colorado H. Bluem, A. Burger, M.D. Cole, A.J. Favale, D. Holmes, J. Rathke, T. Schultheiss, A.M.M. Todd AES, Princeton, New Jersey A.V. Burov, S. Nagaitsev Fermilab, Batavia, Illinois J.R. Delayen, Y.S. Derbenev, L. W. Funk, P. Kneisel, L. Merminga, H.L. Phillips, J.P. Preble Jefferson Lab, Newport News, Virginia I. Koop, V.V. Parkhomchuk, Y.M. Shatunov, A.N. Skrinsky BINP SB RAS, Novosibirsk I.N. Meshkov, A.O. Sidorin, A.V. Smirnov, G.V. Troubnikov JINR, Dubna, Moscow Region J.S. Sekutowicz DESY, Hamburg
	We report progress on the R&D program for electron-cooling of the Relativistic Heavy Ion Collider (RHIC). This electron cooler is designed to cool 100 GeV/nucleon at storage energy using 54 MeV electrons. The electron source will be a superconducting RF photocathode gun. The accelerator will be a superconducting energy recovery linac. The frequency of the accelerator is set at 703.75 MHz. The maximum electron bunch frequency is 9.38 MHz, with bunch charge of 20 nC. The R&D program has the following components: The photoinjector and its photocathode, the superconducting linac cavity, start-to-end beam dynamics with magnetized electrons, electron cooling calculations including benchmarking experiments and development of a large superconducting solenoid. The photoinjector and linac cavity are being incorporated into an energy recovery linac aimed at demonstrating ampere class current at about 20 MeV. A Zeroth Order Design Report is in an advanced draft state, and can be found on the web at http://www.agsrhichome.bnl.gov/eCool/. Under contract with the U.S. Department of Energy, Contract Number DE-AC02-98CH10886.