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Title: Accurate setting of electron energy for demonstration of first hadron beam cooling with rf-accelerated electron bunches

Abstract

The world’s first electron cooling based on the rf acceleration of electron bunches was experimentally demonstrated at the Low Energy RHIC Electron Cooler (LEReC) at Brookhaven National Laboratory. The critical step in obtaining cooling of the Au ions in the collider with this new approach was matching the electron and ion relativistic γ-factors with a relative error of less than 5 × 10–4. Since the electron beam kinetic energy was just 1.6 MeV, it was required to set the absolute energy of electrons with an accuracy better than 0.8 keV. The method of setting electron energy in conventional coolers was unsuitable for LEReC and a new technique had to be developed. In this paper we describe our experience with measuring the electron beam energy at LEReC and precisely matching electron and ion γ-factors, which resulted in demonstration of the cooling.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1575964
Alternate Identifier(s):
OSTI ID: 1579900
Report Number(s):
BNL-212419-2019-JAAM
Journal ID: ISSN 2469-9888; PRABCJ; 111004
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 22 Journal Issue: 11; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Seletskiy, S., Blaskiewicz, M., Drees, A., Fedotov, A., Fischer, W., Gassner, D. M., Gu, X., Hulsart, R., Kayran, D., Kewisch, J., Liu, C., Mernick, K., Michnoff, R., Miller, T., Minty, M., Robert-Demolaize, G., Schoefer, V., Song, H., Thieberger, P., and Wanderer, P. Accurate setting of electron energy for demonstration of first hadron beam cooling with rf-accelerated electron bunches. United States: N. p., 2019. Web. doi:10.1103/PhysRevAccelBeams.22.111004.
Seletskiy, S., Blaskiewicz, M., Drees, A., Fedotov, A., Fischer, W., Gassner, D. M., Gu, X., Hulsart, R., Kayran, D., Kewisch, J., Liu, C., Mernick, K., Michnoff, R., Miller, T., Minty, M., Robert-Demolaize, G., Schoefer, V., Song, H., Thieberger, P., & Wanderer, P. Accurate setting of electron energy for demonstration of first hadron beam cooling with rf-accelerated electron bunches. United States. doi:10.1103/PhysRevAccelBeams.22.111004.
Seletskiy, S., Blaskiewicz, M., Drees, A., Fedotov, A., Fischer, W., Gassner, D. M., Gu, X., Hulsart, R., Kayran, D., Kewisch, J., Liu, C., Mernick, K., Michnoff, R., Miller, T., Minty, M., Robert-Demolaize, G., Schoefer, V., Song, H., Thieberger, P., and Wanderer, P. Wed . "Accurate setting of electron energy for demonstration of first hadron beam cooling with rf-accelerated electron bunches". United States. doi:10.1103/PhysRevAccelBeams.22.111004.
@article{osti_1575964,
title = {Accurate setting of electron energy for demonstration of first hadron beam cooling with rf-accelerated electron bunches},
author = {Seletskiy, S. and Blaskiewicz, M. and Drees, A. and Fedotov, A. and Fischer, W. and Gassner, D. M. and Gu, X. and Hulsart, R. and Kayran, D. and Kewisch, J. and Liu, C. and Mernick, K. and Michnoff, R. and Miller, T. and Minty, M. and Robert-Demolaize, G. and Schoefer, V. and Song, H. and Thieberger, P. and Wanderer, P.},
abstractNote = {The world’s first electron cooling based on the rf acceleration of electron bunches was experimentally demonstrated at the Low Energy RHIC Electron Cooler (LEReC) at Brookhaven National Laboratory. The critical step in obtaining cooling of the Au ions in the collider with this new approach was matching the electron and ion relativistic γ-factors with a relative error of less than 5 × 10–4. Since the electron beam kinetic energy was just 1.6 MeV, it was required to set the absolute energy of electrons with an accuracy better than 0.8 keV. The method of setting electron energy in conventional coolers was unsuitable for LEReC and a new technique had to be developed. In this paper we describe our experience with measuring the electron beam energy at LEReC and precisely matching electron and ion γ-factors, which resulted in demonstration of the cooling.},
doi = {10.1103/PhysRevAccelBeams.22.111004},
journal = {Physical Review Accelerators and Beams},
number = 11,
volume = 22,
place = {United States},
year = {2019},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.22.111004

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Cited by: 5 works
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Works referenced in this record:

High-energy electron cooling in a collider
journal, November 2006


Design and test of 704 MHz and 2.1 GHz normal conducting cavities for low energy RHIC electron cooler
journal, March 2019


Stochastic cooling and the accumulation of antiprotons
journal, July 1985


Operational Stochastic Cooling in the Relativistic Heavy-Ion Collider
journal, May 2008


Attainment of an MeV-range, DC electron beam for the Fermilab cooler
journal, October 2004

  • Shemyakin, A.; Burov, A.; Carlson, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 532, Issue 1-2
  • DOI: 10.1016/j.nima.2004.06.073

Applications of electron cooling in atomic, nuclear and high-energy physics
journal, May 1990


Experimental Demonstration of Relativistic Electron Cooling
journal, January 2006


Optical principles of beam transport for relativistic electron cooling
journal, September 2000

  • Burov, A.; Nagaitsev, S.; Shemyakin, A.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 3, Issue 9
  • DOI: 10.1103/PhysRevSTAB.3.094002

An effective method of damping particle oscillations in proton and antiproton storage rings
journal, May 1967


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