Author: Jamet, C.
Paper Title Page
TUPF31 Intensity Control in GANIL’s Experimental Rooms 587
  • C. Courtois, C. Doutresssoulles, B. Ducoudret, C. Jamet, W. Le Coz, G. Ledu, C. Potier de courcy
    GANIL, Caen, France
  The safety re-examination of existing GANIL facilities requires the implementation of a safety system which makes a control of beam intensities sent in the experimental rooms possible. The aim is to demonstrate that beam intensities are below the authorized limits. The required characteristics should enable the measurement, by a non-interceptive method, of beam intensities from 5 nA to 5μA with a maximum uncertainty of 5%, independently of the frequency and the beam energy. After a comparative study, two types of high frequency diagnostics were selected, the capacitive peak-up and the Fast current transformer. This paper presents the signal simulations from diagnostics with different beam energies, the uncertainty calculations and the results of the first tests with beam.  
poster icon Poster TUPF31 [2.086 MB]  
WEPF32 Measurement and Control of the Beam Energy for the SPIRAL2 Accelerator 897
  • W. Le Coz, C. Doutresssoulles, C. Jamet, G. Ledu, S. Loret, C. Potier de courcy
    GANIL, Caen, France
  The first part of the SPIRAL2 facility, which entered last year in the construction phase at GANIL in France, will be composed of an ion source, a deuteron/proton source, a RFQ and a superconducting linear accelerator delivering high intensities, up to 5 mA and 40 MeV for the deuteron beams. As part of the MEBT commissioning, the beam energy will be measured on the BTI (Bench of Intermediate Test) at the exit of the RFQ. At the exit of the LINAC, the system has to measure but also control the beam energy. The control consists in ensuring that the beam energy is under a limit by taking account of the measurement uncertainty. The energy is measured by a method of time of flight, the signal is captured by non-intercepting capacitive pick-ups. This paper presents also the results obtained in terms of uncertainties and dynamics of measures.  
WEPF33 Measurement and Control of the Beam Intensity for the SPIRAL2 Accelerator 900
  • S.L. Leloir, T. André, B. Ducoudret, C. Jamet, G. Ledu, C. Potier de courcy
    GANIL, Caen, France
  The phase 1 of the SPIRAL2 facility is under construction at the GANIL (Caen, France). The accelerator including a RFQ and a superconducting linac will product deuteron, proton and heavy ion beams in a wide range of intensities and energies (beam power range: a few 100W to 200kW). The measurements of the beam intensities are ensured by several AC and DC Current Transformers (ACCT/DCCT). These measurements are required for the accelerator tuning and the beam controls for safety requests during the daily operation. The uncertainty has to be taken into account to determine the threshold value. This paper presents the measuring chain description of ACCT/DCCT, the signal processing by integration and the uncertainty studies.  
poster icon Poster WEPF33 [3.132 MB]