Progress on the Beam Energy Monitor for the SPIRAL2 Accelerator.

Abstract : The first part of the SPIRAL2 project entered last year in the end of the construction phase at GANIL in France. The facility will be composed by an ion source, a deuteron/proton source, a RFQ and a superconducting linear accelerator. The driver is planned to accelerate high intensities, up to 5 mA and 40 MeV for the deuteron beams. A monitoring system was built to measure the beam energy on the BTI line (Bench of Intermediate Test) at the exit of the RFQ. As part of theMEBT commissioning, the beamenergy will be measured on the BTI with an Epics monitoring application. At the exit of the LINAC, another system will have to measure and control the beam energy. The control consists in ensuring that the beam energy stays 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 describes the BTI monitor interface and presents the system evolution following the design review.
Keywords : General diagnostics
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W. Le Coz, C. Jamet, G. Ledu, S. Loret, C. Potier de Courcy, et al.. Progress on the Beam Energy Monitor for the SPIRAL2 Accelerator.. International Beam Instrumentation Conference (IBIC2014), Sep 2014, Monterey, United States. pp.617--620. ⟨in2p3-01062556⟩

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