title: Preliminary studies on space charge compensation by analyzing residual argon gas ion signals.
abstract: An experimental method is related to research the space charge compensation (SCC) effect in low energy intense proton beams by analyzing residual gas (RG) ion signals. The signal curves were measured with an energy spectrometer under the RG pressure from 1.2x10(-3) to 1.6x10(-2) Pa. Most of the data showed a similar trend with our theoretical predicts. From the RG ion energy spectra the potential distribution in the beam was calculated both with and without the SCC effect. Moreover, as a preliminary result, a best compensating point is achieved for the low energy beam transport transmission of 40 KeV, 60 mA H(+) beam in Peking University.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology and Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: P N
authors.initials: PN
authors.lastname: Lu
authors.forename: S X
authors.initials: SX
authors.lastname: Peng
authors.forename: H T
authors.initials: HT
authors.lastname: Ren
authors.forename: M
authors.initials: M
authors.lastname: Zhang
authors.forename: Z X
authors.initials: ZX
authors.lastname: Yuan
authors.forename: Z Z
authors.initials: ZZ
authors.lastname: Song
authors.forename: J
authors.initials: J
authors.lastname: Zhao
authors.forename: J X
authors.initials: JX
authors.lastname: Yu
authors.forename: Y J
authors.initials: YJ
authors.lastname: Ma
authors.forename: R
authors.initials: R
authors.lastname: Xu
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Guo