TY - JOUR
T1 - Development of a laser wire beam profile monitor (2)
AU - Sakai, Hiroshi
AU - Sasao, Noboru
AU - Araki, Sakae
AU - Higashi, Yasuo
AU - Okugi, Toshiyuki
AU - Taniguchi, Takashi
AU - Urakawa, Junji
AU - Takano, Mikio
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2000/11/21
Y1 - 2000/11/21
N2 - 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.
AB - 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.
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U2 - 10.1016/S0168-9002(00)00716-6
DO - 10.1016/S0168-9002(00)00716-6
M3 - Article
AN - SCOPUS:0034320734
VL - 455
SP - 113
EP - 117
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1
ER -