Phase and amplitude measurement for the SPIRAL2 accelerator

C. Jamet (1) , W. Le Coz (1) , C. Doutressoulles (1) , T. André (1) , E. Swartvagher (1)

1 GANIL - Grand Accélérateur National d'Ions Lourds

The SPIRAL2 project is composed of an accelerator and a radioactive beam section. Radioactive ions beams (RIBs) will be accelerated by the current cyclotron CIME and sent at GANIL experimental areas. The accelerator, with a RFQ and a superconducting Linac, will accelerate 5 mA deuterons up to 40MeV and 1 mA heavy ions up to 14.5 MeV/u. A new electronic device has been evaluated at GANIL to measure phase and amplitude of pick-up signals. The principle consists of directly digitizing pulses by under-sampling. Phase and amplitude of different harmonics are then calculated with a FPGA by an I/Q method. Tests and first results of a prototype are shown and presented as well as future evolutions.

Domaines: Instrumentations et Détecteurs [physics.ins-det]; Physique des accélérateurs [physics.acc-ph]

C. Jamet, W. Le Coz, C. Doutressoulles, T. André, E. Swartvagher. Phase and amplitude measurement for the SPIRAL2 accelerator. 9th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelators (DIPAC 2009), May 2009, Basel, Switzerland. pp.1-2, 2009. ⟨in2p3-00397563⟩