Keyword: instrumentation
Paper Title Other Keywords Page
PO06 Extension of Superconducting LINAC Operation to Lighter Beams linac, controls, cryogenics, target 65
  • V. Nanal, R.D. Deshpande, P. Dhumal, J.N. Karande, R. Palit, R.G. Pillay, M.S. Pose, S.M. Powale, C. Rozario, S.K. Sarkar, M.E. Sawant, A.A. Shinde, S.R. Sinha, A.N. Takke
    TIFR, Mumbai, India
  • S. Singh
    LEHIPA Project, Physics Group, Mumbai, India
  The superconducting LINAC booster at Pelletron Linac Facility(Mumbai), has been fully operational since July 2007. The Liquid Helium Refrigeration plant for the LINAC has been upgraded to enhance the refrigeration capacity to ~450 Watts at 4.5K without LN2 pre-cool, from the earlier capacity of ~300 Watts. All beam lines in new user halls have been commissioned and new experimental setups have been added. Several experiments have been carried out using beams of 12C, 16O, 19F, 28Si, 31P. The QWR cavity is designed for β=0.1 and hence it is difficult to accelerate lighter beams. Due to growing interest in studying Li induced reactions on fissile targets at energies higher than 55 MeV, we have recently accelerated Li beam using four cryostat modules. Starting with 40 MeV Li beam from the pelletron, 56 MeV beam was successfully delivered at target station for a test experiment.  
THB05 The HITRAP Decelerator and Beam Instrumentation ion, rfq, electron, diagnostics 217
  • F. Herfurth, Z. Andjelkovic, W.A. Barth, K. Brantjes, G. Clemente, L.A. Dahl, S. Fedotova, P. Gerhard, M. Kaiser, O.K. Kester, H.J. Kluge, C. Kozhuharov, M.T. Maier, D. Neidherr, W. Quint, A. Reiter, T. Stöhlker, G. Vorobjev, S.G. Yaramyshev
    GSI, Darmstadt, Germany
  • U. Ratzinger, A. Schempp
    IAP, Frankfurt am Main, Germany
  A linear decelerator is being commissioned for heavy, highly-charged ions (HCI) at GSI in Darmstadt/Germany. HCI with only one or few electrons are interesting systems for many different experiments as for instance precision tests of the theory of quantum electrodynamics (QED). In order to transform heavy HCI produced at 400 MeV/u to stored and cooled HCI at low energy the linear decelerator facility HITRAP has been setup behind the experimental storage ring (ESR). The ions are decelerated in the ESR from 400 to 4 MeV/u, cooled and extracted. The ions are then matched to an IH-structure using a double drift buncher, decelerated from 4 to 0.5 MeV/u in the IH, and then down to 6 keV/u in a 4-rod RFQ. To detect and analyze the weak and sparse ion bunches a new type of energy analyzing detector has been developed along with improvements to other “standard” beam instrumentation. One million highly charged ions have been decelerated with the IH from 400 MeV/u to about 0.5 MeV/u per cycle. The RFQ has shown in off-line tests to decelerate ions, however, the measured acceptance does not fit the ion beam from the IH. This requires a refined design, which is underway.  
slides icon Slides THB05 [2.925 MB]