IPAC'23 - 14th International Particle Accelerator Conference

A 1-2 GHz stochastic cooling system for antiprotons and rare isotopes

TUPA184

9 May 2023, 16:30

2h

Salone Adriatico

Poster Presentation MC4.A11: Beam Cooling Tuesday Poster Session

Speaker

Chuan Zhang (GSI Helmholtzzentrum für Schwerionenforschung GmbH)

Description

A 1–2 GHz stochastic cooling system is being de-veloped to provide fast 3D cooling of hot secondary beams (antiprotons at 3 GeV and rare isotope ions at 740 MeV/u) at intensities up to 10^8 particles per cycle. For antiproton cooling, cryogenic plunging pick-up electrodes will be used to improve the ratio of Schott-ky signals to thermal noise. To cool hot rare isotope beams quickly, a two-stage cooling (pre-cooling by the Palmer method and main cooling by the notch-filter method) has been decided. This paper presents the recent R&D highlights of this unique stochastic cool-ing system especially the main sub-systems i.e. two cryogenic plunging slotline pick-ups, one Palmer pick-up, and two slot-ring kickers.