Preliminary studies on space charge compensation by analyzing residual argon gas ion signals

P. N. Lu, S. X. Peng, H. T. Ren, M. Zhang, Z. X. Yuan, Z. Z. Song, J. Zhao, J. X. Yu, Y. J. Ma, R. Xu, Z. Y. Guo

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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 1.2× 10-3 to 1.6× 10-2 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.

Original languageEnglish
Article number02B711
JournalReview of Scientific Instruments
Volume81
Issue number2
DOIs
StatePublished - 2010
Externally publishedYes

Funding

This work is supported by the National Science Foundation of China (Grant No. 10675015) and National Found for Fostering Talents of Basic Science (NFFTBS) of China (Contract No. J0730316).

FundersFunder number
Fostering Talents of Basic Science
NFFTBS
National Natural Science Foundation of China10675015

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