Author: Cybulski, T.
Paper Title Page
MOPWA059 Beam Emittance Measurements and Beam Transport Optimization at the Clatterbridge Cancer Centre 810
  • T. Cybulski, O. Karamyshev, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • A. Degiovanni
    TERA, Novara, Italy
  • A. Kacperek, B. Marsland, I. Taylor, A. Wray
    The Douglas Cyclotron, The Clatterbridge Cancer Centre NHS Foundation Trust, Wirral, United Kingdom
  • O. Karamyshev, C.P. Welsch
    The University of Liverpool, Liverpool, United Kingdom
  Funding: Cockcroft Institute, Daresbury, Warrington, WA4 4AD, United Kingdom University of Liverpool, Liverpool, United Kingdom
The QUASAR Group is preparing tests of the high energy physics LHCb VELO detector as a non–invasive online dose monitor at the 60 MeV proton therapy beam at the Clatterbridge Cancer Centre (CCC), UK. The proposed method relies on the cross-correlation between the beam halo signal as measured by VELO and the dose delivered to the patient, linked via the absolute intensity of the beam. In order to estimate the expected halo signal and the total beam intensity, studies into proton beam transport through the whole CCC beam line have been carried out. This required the measurement of beam emittance at several positions of the beam delivery system. Quadrupole scans have been realized using a CsI (Tl) scintillating screen in combination with an 8 bit, 13 Mpixel CCD camera. In this contribution, results from measurements are presented and include a discussion of the effects from dispersion in the beam. Experimental data are compared against earlier measurements performed in 1998 and are used as a basis for suggestions targeting an overall optimization of beam transport at CCC.
* Assessing the Suitability of a Medical Cyclotron as an Injector for an Energy Upgrade, J. A. Clarke et all , CLRC Daresbury Laboratory, Warrington, UK