Development of a laser wire beam profile monitor (2)

Hiroshi Sakai; Noboru Sasao; Sakae Araki; Yasuo Higashi; Toshiyuki Okugi; Takashi Taniguchi; Junji Urakawa; Mikio Takano

doi:10.1016/S0168-9002(00)00716-6

Development of a laser wire beam profile monitor (2)

Hiroshi Sakai, Noboru Sasao, Sakae Araki, Yasuo Higashi, Toshiyuki Okugi, Takashi Taniguchi, Junji Urakawa, Mikio Takano

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We describe in this paper a new beam profile monitor which is suitable for a low-emittance circulating electron beam. The monitor, termed as a laser wire profile monitor, utilizes a CW laser and an optical cavity to minimize interference with an electron beam. A laser beam with a very thin waist is realized by employing the cavity of nearly concentric mirror configuration while the intensity is amplified by adjusting the cavity length to a Fabry-Perot resonance condition. We have built and tested a prototype cavity. It is found that a beam waist of 12 μm and an effective power of 3300 mW were achieved in the laser wire with good long-term stability. It will be installed in the ATF damping ring at KEK, in which a transverse electron beam size of about 10 μm is expected.

Original language	English
Pages (from-to)	113-117
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	455
Issue number	1
DOIs	https://doi.org/10.1016/S0168-9002(00)00716-6
Publication status	Published - Nov 21 2000
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/S0168-9002(00)00716-6

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Development of a laser wire beam profile monitor (2). / Sakai, Hiroshi; Sasao, Noboru; Araki, Sakae; Higashi, Yasuo; Okugi, Toshiyuki; Taniguchi, Takashi; Urakawa, Junji; Takano, Mikio.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 455, No. 1, 21.11.2000, p. 113-117.

Research output: Contribution to journal › Article › peer-review

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