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Kurup, A.

Paper Title Page
THPP024 Detailed Study of the RF Properties of the FETS RFQ Cold Model 3422
 
  • S. Jolly, A. Kurup, D. A. Lee, J. K. Pozimski, P. Savage
    Imperial College of Science and Technology, Department of Physics, London
  • Y. Cheng
    IHEP Beijing, Beijing
  • A. P. Letchford
    STFC/RAL, Chilton, Didcot, Oxon
 
  A 324MHz four vane RFQ cold model has been built, as part of the development of a proton driver Front End Test Stand (FETS) at the Rutherford Appleton Laboratory (RAL) in the UK. Previous measurements to determine the electric field profile were made using the bead-pull perturbation method: these measurements have been refined and expanded. New measurements of the electric field profile, Q-value and resonant modes are presented. Measurements of the fundamental frequency and Q-value of the RFQ as a result of modifications to the profile of the end flange inserts are also given. Finally, an experiment is outlined to determine the beam transmission properties of the cold model based on beam transport simulations with the General Particle Tracer package (GPT).  
THPP007 Six-sector FFAG Ring to Demonstrate Bunch Rotation for PRISM 3389
 
  • A. Sato, M. Aoki, S. Araki, Y. Arimoto, Y. Eguchi, K. Hirota, I. Itahashi, Y. Kuno, Y. Kuriyama, Y. Nakanishi, M. Y. Yoshida
    Osaka University, Osaka
  • Y. Iwashita
    Kyoto ICR, Uji, Kyoto
  • A. Kurup
    Imperial College of Science and Technology, Department of Physics, London
  • Y. Mori
    KURRI, Osaka
  • C. Ohmori
    KEK, Ibaraki
 
  A monochromatic muon beam is one of the most important requirements to improve a sensitivity of mu-e conversion experiments. In the PRISM project, which searches for mu-e conversion at a sensitivity of BR~10-18, makes such muon beams by using a bunch rotation technique in an FFAG ring. To demonstrate the bunch rotation, a FFAG ring has been constructed in RCNP, Osaka. The ring has six FFAG magnets and one RF cavity. Alpha particles from a radioactive isotope 241Am will circulate in the ring for the demonstration of bunch rotation.  
THPP029 Status of the RAL Front End Test Stand 3437
 
  • A. P. Letchford, M. A. Clarke-Gayther, D. C. Faircloth, D. J.S. Findlay, S. R. Lawrie, P. Romano, P. Wise
    STFC/RAL/ISIS, Chilton, Didcot, Oxon
  • S. M.H. Al Sari, S. Jolly, A. Kurup, D. A. Lee, P. Savage
    Imperial College of Science and Technology, Department of Physics, London
  • J. Alonso, R. Enparantza
    Fundación Tekniker, Elbr (Guipuzkoa)
  • J. J. Back
    University of Warwick, Coventry
  • F. J. Bermejo
    Bilbao, Faculty of Science and Technology, Bilbao
  • C. Gabor, D. C. Plostinar
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • J. Lucas
    Elytt Energy, Madrid
  • J. Pasternak, J. K. Pozimski
    STFC/RAL, Chilton, Didcot, Oxon
 
  High power proton accelerators (HPPAs) with beam powers in the several megawatt range have many applications including drivers for spallation neutron sources, neutrino factories, waste transmuters and tritium production facilities. The UK's commitment to the development of the next generation of HPPAs is demonstrated by a test stand being constructed in collaboration between RAL, Imperial College London, the University of Warwick and the Universidad del Pais Vasco, Bilbao. The aim of the RAL Front End Test Stand is to demonstrate that chopped low energy beams of high quality can be produced and is intended to allow generic experiments exploring a variety of operational conditions. This paper describes the current status of the RAL Front End Test Stand.  
THPP071 Construction of Six-sector FFAG Ring for Muon Phase Rotation 3524
 
  • Y. Arimoto, M. Aoki, S. Araki, Y. Eguchi, K. Hirota, I. Hossain, I. Itahashi, Y. Kuno, Y. Kuriyama, Y. Nakanishi, A. Sato, M. Y. Yoshida
    Osaka University, Osaka
  • Y. Iwashita
    Kyoto ICR, Uji, Kyoto
  • A. Kurup
    Imperial College of Science and Technology, Department of Physics, London
  • Y. Mori
    KURRI, Osaka
  • C. Ohmori
    KEK, Ibaraki
  • T. Oki
    Tsukuba University, Ibaraki
 
  PRISM is a next-generation of muon source which provides high purity, high intense and high brightness beam. In PRISM, a PRISM-FFAG is one of key section which make a muon beam narrow energy width by using phase rotation technique. To demonstrate the phase rotation, a six-cell FFAG ring has been constructed; the ring consists of full size of scaling-FFAG magnets and a high gradient rf cavity. The experiment is achieved by injecting alpha particles from a radioisotope source as a beam. Construction of the ring has been started from September, 2007; beam duct has been designed and installed, the six FFAG magnets has been aligned, etc. In this paper, we will present the design of the ring and the construction (alignment, etc) from engineering point of view.