2001 Fiscal Year Final Research Report Summary
Development of polarized positron source via laser-Compton scattering
| Project/Area Number |
11554010
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 展開研究 |
|---|
| Research Field |
素粒子・核・宇宙線
|
|---|
| Research Institution | High Energy Accelerator Research Organization |
|---|
Principal Investigator |
OMORI Tsunehiko Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, Research Associate, 素粒子原子核研究所, 助手 (80185389)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
KUMITA Tesurou Tokyo Metropolitan University, Department of Physics, Research Associate, 理学部, 助手 (30271159)
HAYANO Hitoshi Accelerator Laboratory, High Energy Accelerator Research Organization, Associate Professor, 加速器研究施設, 助教授 (00173055)
KUKRIHARA Yoshimasa Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, Research Associate, 素粒子原子核研究所, 助手 (50195559)
TSUNEMI Akira Sumitomo Heavy Industries, Researcher, 総合研究所, 研究員
|
|---|
| Project Period (FY) |
1999 – 2001
|
| Keywords | polarized positron beam / linear collider / laser Compton scattering / リニアコライダー / laser-Compton scattering / レーザーコンプトン散乱 |
|---|
| Research Abstract |
Studies were done at the Accelerator Test Facility (ATF) in KEK. A vacuum chamber, named Compton chamber, is developed to achieve efficient head-on collision of laser and electron beams. The results of collision experiment to generate γ-rays (Emax = 56 MeV) were as follows.
1) number of generated γ-rays : 1 x 10^6/pulse
2) pulse duration : about 30 p sec
3) polarization of γ-ray the beam was measured
This was the highest intensity of γ-rays generated in this energy region. And this was the first demonstration of polarization measurement of the γ-ray beam of such short pulse duration. It was demonstrated that our proposed method can generate high intensity γ-ray beam efficiently. We think this was the good progress for the development of the polarized positron source.
|
-
-
-
[Publications] K. Dobashi, M. Fukuda, A. Higurashi, T. Hirose, T. Kimita, Y. Kurihara, T. Muto, T. Okugi, T. Omori, I. Sakai, J. Urakawa, and M. Washio: "Production of a Polarized position and Measurement of Its Polarization"Nuclear Instruments and Methos in Physics Research. A455. 32-35 (2000)
Description
「研究成果報告書概要(欧文)」より
-
