2005年2月
Upgraded laser wire beam profile monitor
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
- 巻
- 538
- 号
- 1-3
- 開始ページ
- 100
- 終了ページ
- 115
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.nima.2004.08.122
- 出版者・発行元
- ELSEVIER SCIENCE BV
We describe in this report an upgraded version of the laser wire beam profile monitor developed at KEK to measure a low-emittance electron beam in the ATF damping ring. This monitor is based on the Compton scattering of electrons with a laser light target. A thin and intense laser beam is produced by exciting a Fabry-Perot optical cavity with a CW laser. Various improvements were made to the original setup. First, the effective laser power inside the cavity was increased by an order of magnitude, leading to a drastic increase in a signal-to-background ratio and a decrease in measurement time. Second, readout circuits were modified to separately measure beam sizes of each bunch in a multi-bunch beam. Third, two cavities were installed to measure both horizontal and vertical beam sizes. With this upgraded setup, measurements of electron beam emittance operated in a multi-bunch mode were carried out successfully. (C) 2004 Published by Elsevier B.V.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.nima.2004.08.122
- ISSN : 0168-9002
- eISSN : 1872-9576
- Web of Science ID : WOS:000227080600008