• Open Access

Laserwire at the Accelerator Test Facility 2 with submicrometer resolution

L. J. Nevay, S. T. Boogert, P. Karataev, K. Kruchinin, L. Corner, D. F. Howell, R. Walczak, A. Aryshev, J. Urakawa, and N. Terunuma
Phys. Rev. ST Accel. Beams 17, 072802 – Published 9 July 2014

Abstract

A laserwire transverse electron beam size measurement system has been developed and operated at the Accelerator Test Facility 2 at the High Energy Accelerator Research Organization, Japan (KEK). Special electron beam optics were developed to create an approximately 1×100μm (vertical×horizontal) electron beam at the laserwire location, which was profiled using 150 mJ, 71 ps laser pulses with a wavelength of 532 nm. The precise characterization of the laser propagation allows the non-Gaussian laserwire scan profiles caused by the laser divergence to be deconvolved. A minimum vertical electron beam size of 1.07±0.06(stat)±0.05(sys)μm was measured. A vertically focusing quadrupole just before the laserwire was varied while making laserwire measurements and the projected vertical emittance was measured to be 82.56±3.04  pmrad.

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  • Received 2 April 2014

DOI:https://doi.org/10.1103/PhysRevSTAB.17.072802

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Authors & Affiliations

L. J. Nevay*, S. T. Boogert, P. Karataev, and K. Kruchinin

  • John Adams Institute at Royal Holloway, University of London, Egham, TW20 0EX, United Kingdom

L. Corner, D. F. Howell, and R. Walczak

  • John Adams Institute at University of Oxford, Denys Wilkinson Building, Oxford OX1 3RH, United Kingdom

A. Aryshev, J. Urakawa, and N. Terunuma

  • KEK, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

  • *laurie.nevay@rhul.ac.uk

See Also

High power fiber laser system for a high repetition rate laserwire

L. J. Nevay, R. Walczak, and L. Corner
Phys. Rev. ST Accel. Beams 17, 072801 (2014)

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Vol. 17, Iss. 7 — July 2014

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