Polarized positron source for the linear collider, JLC

被引：28

作者：

Hirose, T

Dobashi, K

Kurihara, Y

Muto, T

Omori, T

Okugi, T

Sakai, I

Urakawa, J

Washio, M

机构：

[1] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

[2] KEK, High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

[3] Waseda Univ, Adv Res Inst Sci & Technol, Shinjuku Ku, Tokyo 1698555, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 455卷 / 01期

关键词：

polarized positron; linear collider; laser-Compton scattering; left(right-)-handed helicity; plasma channeling; effective polarization;

D O I：

10.1016/S0168-9002(00)00686-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A comprehensive description of a polarized positron project is presented in terms of physics motivations for utilizing a polarized positron in electron-positron collider experiments, a proof-of-principle experiment and a conceptual design of a polarized positron source for the future linear collider JLC, In order to verify a proposed method of creating highly polarized positron beams via successive two fundamental processes, i.e, Compton scattering and pair creation, we have been performing basic experiments both at KEE; and BNL. First observation of positrons was made at KEK using an electron beam of 1.26 GeV and a laser of 2.33 eV. High-intensity picosecond X-rays were also generated at BNL using a specially designed Compton chamber. In order to realize polarized positron beams of the JLC which have considerably high intensity, i.e, 0.7 x 10(10) e(+)/pulse and a complicated multi-bunch structure, we have achieved a possible scheme for the Compton scattering system and a positron capture section into an L-band linac. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：15 / 24

页数：10

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