Vertical beam size measurement in the CESR-TA $e^+e^-$ storage ring using x-rays from synchrotron radiation

@inproceedings{Alexander2014VerticalBS,
  title={Vertical beam size measurement in the CESR-TA \$e^+e^-\$ storage ring using x-rays from synchrotron radiation},
  author={Julian P. Alexander and Arindom Chatterjee and Christopher Conolly and E. Edwards and Michael P. Ehrlichman and Ernest E. Fontes and Brian K. Heltsley and Walter Hopkins and Aaron Lyndaker and Douglas P. Peterson and N. T. Rider and David L. Rubin and Joe Savino and Robert Seeley and J. Shanks and John Walter Flanagan},
  year={2014}
}
Abstract We describe the construction and operation of an X-ray beam size monitor (xBSM), a device measuring e + and e − beam sizes in the CESR-TA storage ring using synchrotron radiation. The device can measure vertical beam sizes of 10 – 100 μ m on a turn-by-turn, bunch-by-bunch basis at e ± beam energies of ~ 2 GeV . At such beam energies the xBSM images X-rays of ϵ ≈ 1 – 10 keV ( λ ≈ 0.1 – 1 nm ) that emerge from a hard-bend magnet through a single- or multiple-slit (coded aperture) optical… CONTINUE READING

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