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arXiv · 0810.5467

Design of a Nanometer Beam Size Monitor for ATF2

Taikan Suehara·Masahiro Oroku·Takashi Yamanaka·Hakutaro Yoda·Tomoya Nakamura·Yoshio Kamiya·Yosuke Honda·Tatsuya Kume·Toshiaki Tauchi·Tomoyuki Sanuki·Sachio Komamiya
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Abstract

We developed an electron beam size monitor for extremely small beam sizes. It uses a laser interference fringe for a scattering target with the electron beam. Our target performance is < 2 nm systematic error for 37 nm beam size and < 10% statistical error in a measurement using 90 electron bunches for 25 - 6000 nm beam size. A precise laser interference fringe control system using an active feedback function is incorporated to the monitor to achieve the target performance. We describe an overall design, implementations, and performance estimations of the monitor.

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Taikan Suehara, Masahiro Oroku, Takashi Yamanaka, Hakutaro Yoda, Tomoya Nakamura, Yoshio Kamiya, Yosuke Honda, Tatsuya Kume, Toshiaki Tauchi, Tomoyuki Sanuki, Sachio Komamiya. 2008-10-30. Design of a Nanometer Beam Size Monitor for ATF2. https://arxiv.org/abs/0810.5467

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