Recent results on non-invasive beam size measurement methods based on polarization radiation

L. Bobb, M. Bergamaschi, R. Jones, R. Kieffer, T. Lefevre, S. Mazzoni, F. Roncarolo, M. Billing, J. Conway, M. Forster, Y. Padilla Fuentes, J. Shanks, S. Wang, L. Ying, P. Karataev, K. Lekomtsev, A. Aryshev, N. Terunuma, V. V. Bleko, A. S. KonkovA. P. Potylitsyn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present recent results on non-invasive beam profile measurement techniques based on Diffraction Radiation (DR) and Cherenkov Diffraction Radiation (ChDR). Both methods exploit the analysis of broadband electromagnetic radiation resulting from polarization currents produced in, or at the boundary of, a medium in close proximity of a charged particle beam. To increase the resolution of DR, measurements were performed in the UV range at a wavelength of 250 nm. With such configurations, sensitivity to the beam size of a 1.2 GeV electron beam below 10 m was observed at the Accelerator Test Facility (ATF) at KEK, Japan. In the case of the ChDR, a proof of principle study was carried out at the Cornell Electron Storage Ring (CESR) where beam profiles were measured in 2017 on a 5.3 GeV positron beam. At the time of writing an experiment to measure the resolution limit of ChDR has been launched at ATF where smaller beam sizes are available. We will present experimental results and discuss the application of such techniques for future accelerators.

Original languageEnglish
Title of host publicationProceedings of the 7th International Beam Instrumentation Conference, IBIC 2018
PublisherJoint Accelerator Conferences Website (JACoW)
ISBN (Electronic)9783954502011
DOIs
Publication statusPublished - Nov 2018
Event7th International Beam Instrumentation Conference, IBIC 2018 - Shanghai, China
Duration: 9 Sep 201813 Sep 2018

Publication series

NameProceedings of the 7th International Beam Instrumentation Conference, IBIC 2018

Conference

Conference7th International Beam Instrumentation Conference, IBIC 2018
CountryChina
CityShanghai
Period9.9.1813.9.18

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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  • Cite this

    Bobb, L., Bergamaschi, M., Jones, R., Kieffer, R., Lefevre, T., Mazzoni, S., Roncarolo, F., Billing, M., Conway, J., Forster, M., Padilla Fuentes, Y., Shanks, J., Wang, S., Ying, L., Karataev, P., Lekomtsev, K., Aryshev, A., Terunuma, N., Bleko, V. V., ... Potylitsyn, A. P. (2018). Recent results on non-invasive beam size measurement methods based on polarization radiation. In Proceedings of the 7th International Beam Instrumentation Conference, IBIC 2018 (Proceedings of the 7th International Beam Instrumentation Conference, IBIC 2018). Joint Accelerator Conferences Website (JACoW). https://doi.org/10.18429/JACoW-IBIC2018-wepb14