Author: Wallon, S.
Paper Title Page
MOPRO033 Design and Feasibility Study of a Transverse Halo Collimation System for ATF2 145
 
  • N. Fuster-Martínez
    Valencia University, Atomic Molecular and Nuclear Physics Department, Valencia, Spain
  • P. Bambade, S. Liu, S. Wallon
    LAL, Orsay, France
  • A. Faus-Golfe, J. Resta-López
    IFIC, Valencia, Spain
  • K. Kubo, T. Okugi, T. Tauchi, N. Terunuma
    KEK, Ibaraki, Japan
  • I. Podadera, F. Toral
    CIEMAT, Madrid, Spain
  
  Funding: Work supported by FPA2010-21456-C02-01 and by i-link 0704
This paper presents the design of a halo collimation system for the ATF2 beamline. The main objective is the reduction of background noise that limits the performance of key diagnostic devices around the final focal point (IP), especially the Shintake Monitor (IPBSM) used for measuring the nanometer level vertical beam sizes and the future Diamond Sensor (DS) for measuring the beam halo. Beam tracking simulations have been performed to optimize the position and characteristics of the halo collimation devices. Furthermore the collimator wakefield-induced effect is being studied. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-MOPRO033  
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THPME147 The High Position Resolution Cavity BPM Developments and Measurement for ILC Final Focus System 3599
 
  • S.W. Jang, J.G. Hwang, E.-S. Kim, L. Lee
    KNU, Deagu, Republic of Korea
  • P. Bambade, O.R. Blanco-García, F. Bogard, S. Wallon
    LAL, Orsay, France
  • Y. Honda, T. Okugi, T. Tauchi, N. Terunuma
    KEK, Ibaraki, Japan
  
  An ultra high position resolution cavity BPM was developed for the final focus system of ATF2, which is a accelerator test facility for ILC final focus system. The main purpose of ATF2 are achievement of 37 nm beam size and nano-meter beam orbit stability at IP(Interaction Point). For these purposes, a few nano meter beam position resolution was required for this cavity BPM, which is called the IP-BPM. The IP-BPM was fabricated 2 blocks of IP-BPM, the first block consists of two cavities in one block and second block consists of single cavity. IP-BPM can measure beam position in vertical and horizontal independently by using rectangular shape single cavity. Three IP-BPMs were installed at ATF IP region inside IP-chamber, and its position resolution was measured. We will present the detailed results on the beam tests.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME147  
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