Production of a short-bunch polarized positron beam and design of a positron polarimeter

被引：0

作者：

Fukuda, M ^{[1
]}

Ohashi, A ^{[1
]}

Hirose, T ^{[1
]}

Washio, M ^{[1
]}

Yamazaki, I ^{[1
]}

Kurihara, Y ^{[1
]}

Nomura, M ^{[1
]}

Okugi, T ^{[1
]}

Omori, T ^{[1
]}

Urakawa, J ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo, Japan

来源：

QUANTUM ASPECTS OF BEAM PHYSICS | 2004年

关键词：

D O I：

10.1142/9789812702333_0010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have been pursuing a basic study of a polarized positron source for a next generation linear collider, JLC based on two fundamental processes, i.e. inverse Compton scattering of circularly polarized laser-photons and pair-creation of a polarized gamma-ray. Polarized gamma-rays were produced at; collisions of circularly polarized laser-beams with a wave length of 532nm provided from a Nd:YAG with counter-propagating electron beams of 1.28 GeV. Since a time-duration of produced gamma-rays is extremely short, i.e. 30 ps, we have developed a transmission method in which a total flux of gamma-rays passing through magnetized iron is measured resulting in asymmetry determination. We will report technical details of a positron polarimetry, which will be soon employed to substantiate our proposed view concerning a JLC polarized positron source.

引用

页码：95 / 102

页数：8

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