Parkhomchuk, V. V.

Paper	Title	Page
TUM1I02	Commissioning of Electron Cooling in CSRm	59
	X. D. Yang, D. Q. Gao, Y. He, G. H. Li, J. Li, Y. Liu, L. J. Mao, R. S. Mao, M. T. Song, J. W. Xia, G. Q. Xiao, J. C. Yang, X. T. Yang, Y. J. Yuan, W.-L. Zhan, W. Zhang, H. W. Zhao, T. C. Zhao, J. H. Zheng, Z. Z. Zhou IMP, Lanzhou V. V. Parkhomchuk BINP SB RAS, Novosibirsk
	A new generation cooler was commissioned in CSRm, 12C6+ beam with energy 7MeV/u was delivered by a small cyclotron SFC, then injected into CSRm by stripping mode, the average pulse particle number is about 6.8×108 in one injection, with the help of electron cooling of partial hollow electron beam, 3×109 particle were accumulated in the ring after 10 times injection in 10 seconds, and 2×109 particle were accelerated to final energy 1GeV/u, the momentum spread and the lifetime of ion beam were measured roughly. The work point of ring was monitored during the process of acceleration. The close-orbit correction was done initially. The momentum cooling time was about 0.3sec. About 1.6×1010 particle was stored in the ring after longer time accumulation.
	Slides
TUM1I03	Comparison of Hollow Electron Devices and Electron Heating	64
	V. V. Parkhomchuk BINP SB RAS, Novosibirsk
	The first results of the electron cooling with hollow electron beam are present. The electron coolers with varable electron beam profiles was commissioned at CERN and IMP (China). Accumulation of the ion beam was demonstrated.
	Slides
THM2I06	Electron Beams as Stochastic 3D Kickers	154
	V. B. Reva, A. V. Ivanov, V. V. Parkhomchuk BINP SB RAS, Novosibirsk
	This article describes an idea combining electron and stochastic cooling in one device. The amplified signal about displacements of the ion from pick-up electrode applied to the control electrode of an electron gun. Thus, a wave of the space charge in the electron beam is induced. This wave propagates with the electron beam to the cooling section. The space charge of the electron beam acts on the ion beam producing a kick. The effectiveness of the amplification can be improved with using a structure similar to a traveling-wave tube.
THAP04	Optimization of the Magnet System for Low Energy Coolers	167
	A. V. Bubley, V. M. Panasyuk, V. V. Parkhomchuk, V. B. Reva BINP SB RAS, Novosibirsk
	Aspects of magnet design and field measurements are discussed in the view of low energy coolers construction. The paper describes some engineering solutions for the magnetic field improvement which provides appropriate conditions for the cooling process as well as electron and ion beams motion.