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Progress of the WITCH project

Progress of the WITCH project. Valentin Kozlov. NIPNET meeting, 23-25 May, Groningen. M.Beck, B.Delaur é , V.Kozlov , A.Lindroth and N.Severijns. KO. V.Golovko, I.Kraev, T.Phalet and S.Versyck. F. Ames, D. Beck, G. Bollen, J. Deutsch, W. Quint, K.Reisinger

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Progress of the WITCH project

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  1. Progress of the WITCH project Valentin Kozlov NIPNET meeting, 23-25 May, Groningen Weak Interaction Trap for CHarged particles

  2. M.Beck, B.Delauré, V.Kozlov, A.Lindroth and N.Severijns KO V.Golovko, I.Kraev, T.Phalet and S.Versyck F. Ames, D. Beck, G. Bollen, J. Deutsch, W. Quint, K.Reisinger and the NIPNET Collaboration WITCH team Weak Interaction Trap for CHarged particles

  3. b+ Standard Model: V-A interaction ne (pure Fermi) 95%CL b+ 1 0.8 0.6 ne 0.4 0.2 200 500 400 100 300 0 Recoil energy (eV) Motivation & Principle -correlation: Vector V, a=1 S, a=-1 Scalar Weak Interaction Trap for CHarged particles

  4. Cooler Trap Decay Trap REXTRAP Spectrometer Differential pumping Buffer gas inlet Penning Trap Weak Interaction Trap for CHarged particles

  5. retardation counter retardation potential conversion of radial into longitudinal kinetic energy necessary we use “inverse” magnetic mirror: decay trap in 9T –field, retardation in 0.1T field Energy Conversion: Retardation !! probes velocity componentparallel to electric field!! Weak Interaction Trap for CHarged particles

  6. Detector (MCP) Einzellens Post acceleration -detector Energy analysis by retardation 0.1T magnet Radial into axial motion conversion Decay trap 9T magnet Cooler trap Pulsed drift tube Horizontal beam transport 90 bender REXTRAP Experimental set-up Weak Interaction Trap for CHarged particles

  7. Horizontal beam-line Weak Interaction Trap for CHarged particles

  8. The Magnet system Weak Interaction Trap for CHarged particles

  9. Magnet homogeneity Weak Interaction Trap for CHarged particles

  10. Precision 105 107 Weak Interaction Trap for CHarged particles

  11. WITCH Control system • LabVIEW environment • Wide variety of measurement devices • Easy to start • Powerful, built-in measurement analysis • Professional support from NI and in CERN • Compatibility with ShipTrap Control System • Windows NT/2000(?) • Best support for LabVIEW • Most stable from Windows family • Support in CERN • Additional modules for LabVIEW (DSC- Datalogging and Supervisory Control, …) Weak Interaction Trap for CHarged particles

  12. LabView programming LabVIEW Panel LabVIEW Diagram Weak Interaction Trap for CHarged particles

  13. Current status Weak Interaction Trap for CHarged particles

  14. Isolde hall Weak Interaction Trap for CHarged particles

  15. Experimental area Weak Interaction Trap for CHarged particles

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