Author: Cornebise, P.
Paper Title Page
MOPHA003 Status of ATF2 IP-BPM Project 777
 
  • O.R. Blanco-García, P. Bambade, F. Bogard, P. Cornebise, S. Wallon
    LAL, Orsay, France
  • D.R. Bett, N. Blaskovic Kraljevic, T. Bromwich
    JAI, Oxford, United Kingdom
  • P. Burrows, G.B. Christian, C. Perry
    Oxford University, Physics Department, Oxford, Oxon, United Kingdom
  • Y. Honda, K. Kubo, S. Kuroda, T. Naito, T. Okugi, T.T. Tauchi, N. Terunuma
    KEK, Ibaraki, Japan
  • S.W. Jang, E.-S. Kim
    KNU, Deagu, Republic of Korea
  
  The efforts during the second half of 2014 towards nano-metric beam position measurement and stabilization at the Interaction Point (IP) section of the Accelerator Test Facility (ATF) at KEK are presented. Recent improvements to the beam position monitor (BPM) data analysis and processing electronics, as well as the installation of a new set of C-Band BPMs, are reviewed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPHA003  
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MOPHA008 Investigation of Beam Halo Using In Vacuum Diamond Sensor at ATF2 791
 
  • S. Liu, P. Bambade, F. Bogard, P. Cornebise, V. Kubytskyi, C. Sylvia
    LAL, Orsay, France
  • A. Faus-Golfe, N. Fuster-Martínez
    IFIC, Valencia, Spain
  • T. Tauchi, N. Terunuma
    KEK, Ibaraki, Japan
  • T. Tauchi, N. Terunuma
    Sokendai, Ibaraki, Japan
  
  Funding: Chinese Scholarship Council, CNRS and P2IO LABEX
Beam halo transverse distribution measurements are of great importance for the understanding of background sources of the nano-meter beam size monitor at the interaction point (IPBSM) of ATF2. One of the most critical issues for the beam halo measurement is to reach high dynamic range. Two in vacuum diamond sensor beam halo scanners (DSv) with four strips each have been developed for the investigation of beam halo transverse distributions at ATF2. The first DSv was installed for horizontal beam halo scanning after the interaction point (IP) of ATF2, in Nov. 2014. It aims to measure the beam halo distribution with large dynamic range (~106), and investigate the possibility of probing the Compton recoil electrons produced in the interaction with the IPBSM laser beams. Studies to characterize the DS performance and measurements of horizontal beam halo performed in Nov.-Dec. 2014 are presented. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPHA008  
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