Experimental Demonstration of Ion Beam Cooling with Pulsed Electron Beam

Zhang, Yuhong; Hutton, Andrew; Jordan, Kevin; Li, Jie; Ma, Xiaoming; Mao, Lijun; Powers, Tom; Rimmer, Robert; Spata, Michael; Tang, Meitang; Wang, Haipeng; Wang, Shaoheng; Yang, Jiancheng; Yang, Xiaodong; Zhang, He; Zhao, He; Zhao, Hongwei

doi:10.18429/JACoW-IPAC2018-TUPAL069

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RIS citation export for TUPAL069: Experimental Demonstration of Ion Beam Cooling with Pulsed Electron Beam

TY - CONF
AU - Zhang, Y.
AU - Hutton, A.
AU - Jordan, K.
AU - Li, J.
AU - Ma, X.M.
AU - Mao, L.J.
AU - Powers, T.
AU - Rimmer, R.A.
AU - Spata, M. F.
AU - Tang, M.T.
AU - Wang, H.
AU - Wang, S.
AU - Yang, J.C.
AU - Yang, X.D.
AU - Zhang, H.
AU - Zhao, H.
AU - Zhao, H.W.
ED - Koscielniak, Shane
ED - Satogata, Todd
ED - Schaa, Volker RW
ED - Thomson, Jana
TI - Experimental Demonstration of Ion Beam Cooling with Pulsed Electron Beam
J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018
C1 - Vancouver, BC, Canada
T2 - International Particle Accelerator Conference
T3 - 9
LA - english
AB - Cooling ion beams at high energy is presently considered for several ion colliders, in order to achieve high luminosities by enabling a significant reduction of emittance of hadron beams. Electron beam at cooling channel in a few to tens MeV can be accelerated by a RF/SRF linac, and thus using bunched electrons to cool bunched ions. To study such cooling process, the DC electron gun of EC35 cooler at the storage ring CSRm, IMP was modified by pulsing the grid voltage. A 0.07-3.5 micro-second pulse length with a repetition frequency of less than 250 kHz and synchronized with the ion revolution frequency was obtained. The first experimental demonstration of cooling of a coasting and bunched ion beam by a pulsed electron beam was carried out. Data analysis indicates the bunch length shrinkage and the momentum spread reduction of bunched 12C+6 ion beam as evidence of cooling. A longitudinal grouping effect of the coasting ion beam by the electron pulses has also been observed*. In this paper, we will present experimental results and comparison to the simulation modelling, particularly on the bunched electron cooling data after carefully analyzing the beam diagnostic signals.
PB - JACoW Publishing
CP - Geneva, Switzerland
SP - 1174
EP - 1177
KW - electron
KW - experiment
KW - synchrotron
KW - simulation
KW - data-analysis
DA - 2018/06
PY - 2018
SN - 978-3-95450-184-7
DO - 10.18429/JACoW-IPAC2018-TUPAL069
UR - http://jacow.org/ipac2018/papers/tupal069.pdf
ER -