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Title: OTR Measurements and Modeling of the Electron Beam Optics at the E-Cooling Facility

Abstract

Optics of the electron beam accelerated in the Pelletron, intended for the electron cooling of 8.9 GeV antiprotons in the Fermilab recycler storage ring, has been studied. The beam profile parameters were measured under the accelerating section using Optical Transition Radiation (OTR) monitor. The monitor employs a highly-reflective 2 inch-diameter aluminum OTR-screen with a thickness of 5 {mu}m and a digital CCD camera. The measurements were done in a pulse-signal mode in the beam current range of 0.03-0.8 A and at pulse durations ranging from 1 {mu}s to 4 {mu}s. Differential profiles measured in pulsed mode are compared with results obtained by modeling of the DC beam dynamics from the Pelletron cathode to the OTR monitor. The modeling was done with SAM, ULTRASAM and BEAM programs. An adjustment of the magnetic fields in the lenses of the accelerating section was done in the simulations. The simulated electron beam optics downstream of the accelerating section was in good agreement with the measurements made with pulsed beam.

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. Fermi National Accelerator Laboratory, P.O.Box 500, Batavia IL 60543 (United States)
  2. Budker Institute of Nuclear Physics, 630090 Novosibirsk (Russian Federation)
Publication Date:
OSTI Identifier:
20798426
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 821; Journal Issue: 1; Conference: COOL05: International workshop on beam cooling and related topics, Galena, IL (United States), 18-23 Sep 2005; Other Information: DOI: 10.1063/1.2190139; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ANTIPROTONS; BEAM CURRENTS; BEAM DYNAMICS; BEAM MONITORS; BEAM PROFILES; CAMERAS; CHARGE-COUPLED DEVICES; COMPUTERIZED SIMULATION; ELECTRON BEAMS; ELECTRON COOLING; FERMILAB; GEV RANGE; MAGNETIC FIELDS; PELLETRON ACCELERATORS; PULSES; STORAGE RINGS; TRANSITION RADIATION

Citation Formats

Warner, A, Burov, A, Carlson, K, Nagaitsev, S, Prost, L, Sutherland, M, Kazakevich, G, and Tiunov, M. OTR Measurements and Modeling of the Electron Beam Optics at the E-Cooling Facility. United States: N. p., 2006. Web. doi:10.1063/1.2190139.
Warner, A, Burov, A, Carlson, K, Nagaitsev, S, Prost, L, Sutherland, M, Kazakevich, G, & Tiunov, M. OTR Measurements and Modeling of the Electron Beam Optics at the E-Cooling Facility. United States. https://doi.org/10.1063/1.2190139
Warner, A, Burov, A, Carlson, K, Nagaitsev, S, Prost, L, Sutherland, M, Kazakevich, G, and Tiunov, M. 2006. "OTR Measurements and Modeling of the Electron Beam Optics at the E-Cooling Facility". United States. https://doi.org/10.1063/1.2190139.
@article{osti_20798426,
title = {OTR Measurements and Modeling of the Electron Beam Optics at the E-Cooling Facility},
author = {Warner, A and Burov, A and Carlson, K and Nagaitsev, S and Prost, L and Sutherland, M and Kazakevich, G and Tiunov, M},
abstractNote = {Optics of the electron beam accelerated in the Pelletron, intended for the electron cooling of 8.9 GeV antiprotons in the Fermilab recycler storage ring, has been studied. The beam profile parameters were measured under the accelerating section using Optical Transition Radiation (OTR) monitor. The monitor employs a highly-reflective 2 inch-diameter aluminum OTR-screen with a thickness of 5 {mu}m and a digital CCD camera. The measurements were done in a pulse-signal mode in the beam current range of 0.03-0.8 A and at pulse durations ranging from 1 {mu}s to 4 {mu}s. Differential profiles measured in pulsed mode are compared with results obtained by modeling of the DC beam dynamics from the Pelletron cathode to the OTR monitor. The modeling was done with SAM, ULTRASAM and BEAM programs. An adjustment of the magnetic fields in the lenses of the accelerating section was done in the simulations. The simulated electron beam optics downstream of the accelerating section was in good agreement with the measurements made with pulsed beam.},
doi = {10.1063/1.2190139},
url = {https://www.osti.gov/biblio/20798426}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 821,
place = {United States},
year = {Mon Mar 20 00:00:00 EST 2006},
month = {Mon Mar 20 00:00:00 EST 2006}
}