Recent developments in the design of the NLC positron source

T. Kotserogluo, V. Bharadwaj, J. Clendenin, S. Ecklund, J. Frisch, P. Krejcik, A. Kulikov, J. Liu, T. Maruyama, K. Millage, G. Mulhollan, W. Nelson, D. Schultz, J. Sheppard, J. Turner, K. Van Bibber, K. Flottmann, Y. Namito
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引用次数: 5

Abstract

Recent developments in the design of the Next Linear Collider (NLC) positron source based on updated beam parameters are described. The unpolarized NLC positron source consists of a dedicated 6.2 GeV S-band electron accelerator, a high-Z positron production target, a capture system and an L-band positron linac. The 1998 failure of the SLC target which is currently under investigation may lead to a variation of the target design. Progress towards a polarized positron source is also presented. A moderately polarized positron beam colliding with a highly polarized electron beam results in an effective polarization large enough to explore new physics at NLC. One of the schemes towards a polarized positron source incorporates a polarized electron source, a 50 MeV electron accelerator, a thin target for positron production and a new capture system optimized for high-energy small angular divergence positrons.
NLC正电子源设计的最新进展
介绍了基于新光束参数的次线性对撞机(NLC)正电子源设计的最新进展。非极化NLC正电子源由一个专用的6.2 GeV s波段电子加速器、一个高z正电子产生靶、一个捕获系统和一个l波段正电子直线加速器组成。目前正在调查的1998年SLC靶的失败可能导致靶设计的变化。还介绍了偏振正电子源的研究进展。中等极化的正电子束与高度极化的电子束碰撞产生了足够大的有效极化,可以在NLC探索新的物理。其中一个极化正电子源的方案包括一个极化电子源、一个50 MeV的电子加速器、一个用于产生正电子的薄靶和一个针对高能小角发散正电子优化的新捕获系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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