Evaluation of 2-D Transverse Beam Profile Monitor Using Gas Sheet at J-PARC LINAC

被引:3
|
作者
Kamiya, J. [1 ]
Okabe, K. [1 ]
Kinsho, M. [1 ]
Moriya, K. [1 ]
Yamada, I. [2 ]
Ogiwara, N. [3 ]
Hikichi, Y. [4 ]
Wada, K. [5 ]
机构
[1] Japan Atom Energy Agcy, J PARC, Shirakata 2-4, Tokai, Ibaraki, Japan
[2] Doshisha Univ, Tataramiyakodani 1-3, Kyoto, Japan
[3] KEK, J PARC, Shirakata 2-4, Naka, Ibaraki, Japan
[4] Nippon Adv Technol Co Ltd, Muramatsu 3129-45, Naka, Ibaraki, Japan
[5] Tokyo Elect Co Ltd, Honcho 2-22-7, Kokubunji, Tokyo, Japan
关键词
D O I
10.1088/1742-6596/1350/1/012149
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
A transverse beam profile monitor, which detects ions or luminescence generated by the interaction between the beam and the gas molecules distributed in a sheet shape, has been developed in the J-PARC LINAC. To know about the gas density distribution of the sheetshaped gas, which affects the intensity distribution of the detected signal, the calculation by the Monte Carlo simulation code was performed. The calculation results showed that the gas with a narrow width along beam direction distributes enough uniformly within a realistic beam cross-sectional size. In addition, the unsaturated region against the MCP voltage and the injected gas pressure are evaluated based on the measurement with a beam. The results showed that the measurement in the low injected gas pressure with the appropriate applied voltage range is important to measure the beam profile in the unsaturated region.
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页数:6
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