Demonstration of Electron Cooling using a Pulsed Beam from an Electrostatic Electron Cooler

Bruker, Max; Benson, Stephen; Hutton, Andrew; Jordan, Kevin; Li, Jie; Ma, Fu; Ma, Xiaoming; Mao, Lijun; Powers, Tom; Rimmer, Robert; Satogata, Todd; Sha, Xiaoping; Sy, Amy; Tang, Meitang; Wang, Haipeng; Wang, Shaoheng; Yang, Jiancheng; Yang, Xiaodong; Zhang, He; Zhang, Yuhong; Zhao, He; Zhao, Hongwei

doi:10.18429/JACoW-IPAC2021-TUPAB181

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RIS citation export for TUPAB181: Demonstration of Electron Cooling using a Pulsed Beam from an Electrostatic Electron Cooler

TY  - CONF
AU  - Bruker, M.W.
AU  - Benson, S.V.
AU  - Hutton, A.
AU  - Jordan, K.
AU  - Li, J.
AU  - Ma, F.
AU  - Ma, X.M.
AU  - Mao, L.J.
AU  - Powers, T.
AU  - Rimmer, R.A.
AU  - Satogata, T.
AU  - Sha, X.P.
AU  - Sy, A.V.
AU  - Tang, M.T.
AU  - Wang, H.
AU  - Wang, S.
AU  - Yang, J.C.
AU  - Yang, X.D.
AU  - Zhang, H.
AU  - Zhang, Y.
AU  - Zhao, H.
AU  - Zhao, H.W.
ED  - Liu, Lin
ED  - Byrd, John M.
ED  - Neuenschwander, Regis T.
ED  - Picoreti, Renan
ED  - Schaa, Volker R. W.
TI  - Demonstration of Electron Cooling using a Pulsed Beam from an Electrostatic Electron Cooler
J2  - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021
CY  - Campinas, SP, Brazil
T2  - International Particle Accelerator Conference
T3  - 12
LA  - english
AB  - Electron cooling continues to be an invaluable technique to reduce and maintain the emittance in hadron storage rings in cases where stochastic cooling is inefficient and radiative cooling is negligible. Extending the energy range of electron coolers beyond what is feasible with the conventional, electrostatic approach necessitates the use of RF fields for acceleration and, thus, a bunched electron beam. To experimentally investigate how the relative time structure of the two beams affects the cooling properties, we have set up a pulsed-beam cooling device by adding a synchronized pulsing circuit to the conventional electron source of the CSRm cooler at Institute of Modern Physics *. We show the effect of the electron bunch length and longitudinal ion focusing strength on the temporal evolution of the longitudinal and transverse ion beam profile and demonstrate the detrimental effect of timing jitter as predicted by theory and simulations. Compared to actual RF-based coolers, the simplicity and flexibility of our setup will facilitate further investigations of specific aspects of bunched cooling such as synchro-betatron coupling and phase dithering.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 1827
EP  - 1830
KW  - electron
KW  - experiment
KW  - space-charge
KW  - timing
KW  - emittance
DA  - 2021/08
PY  - 2021
SN  - 2673-5490
SN  - 978-3-95450-214-1
DO  - doi:10.18429/JACoW-IPAC2021-TUPAB181
UR  - https://jacow.org/ipac2021/papers/tupab181.pdf
ER  -