Direct observation of the fast beam-ion instability

被引：11

作者：

Huang, JY

Kwon, M

Lee, TY

Ko, IS

Chin, YH

Fukuma, H

机构：

[1] POSTECH, Pohang Accelerator Lab, Pohang 790784, South Korea

[2] Natl Lab High Energy Phys, KEK, Accelerator Lab, Tsukuba, Ibaraki 305, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.81.4388

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Direct evidence of the fast beam-ion instability (FBII) was obtained in the Pohang Light Source by measuring the bunch-by-bunch parameters from the snapshots of the beam image. With the direct observation, we confirmed the FBII signals and clarified uncertainties of the blowup factors quantitatively: bunch size blowup of similar to 2 sigma(y) and the oscillation amplitude of -0.75 sigma(y). Suppression of the FBII was also demonstrated in the presence of the multiple gases or an extra clearing gap in the bunch train.

引用

页码：4388 / 4391

页数：4