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K.U.Leuven LPC-Caen GSI Jyväskylä Univ. CERN-ISOLDE Krakow Jagell.Univ. Univ. Mainz

JRA-11 (TRAPSPEC) Improvements and developments of ion traps, spectrometers and detectors for low-energy nuclear physics experiments. K.U.Leuven LPC-Caen GSI Jyväskylä Univ. CERN-ISOLDE Krakow Jagell.Univ. Univ. Mainz RMKI-Budapest (ass.).

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K.U.Leuven LPC-Caen GSI Jyväskylä Univ. CERN-ISOLDE Krakow Jagell.Univ. Univ. Mainz

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  1. JRA-11 (TRAPSPEC)Improvements and developments of ion traps, spectrometers and detectors forlow-energy nuclear physics experiments K.U.Leuven LPC-Caen GSI Jyväskylä Univ. CERN-ISOLDE Krakow Jagell.Univ. Univ. Mainz RMKI-Budapest (ass.) EURONS PCC Meeting, Groningen, 11-12 December 2006

  2. Design and development of multi-purpose set-ups for precisiondecay spectroscopy in ion traps -particles and CE electrons: Si, MCP, wire chamber recoil ions: MCP detector, channeltron with CDEM Design and development of new trap configurations cryogenic Penning trap - superheavy elements - doubly and triply charged ions measurements on daughter isotopes of those originally trapped system to monitor phase space of trapped ion cloud EURONS PCC Meeting, Groningen, 11-12 December 2006

  3. electron & ion sources:- reference masses - study of systematic effects - off-line studies Performance enhancementof Penning-trap experiments by using dedicated new electron- and ion sources Retardation spectrometersfor recoil-ion spectroscopy for trap-assisted beta-neutrino correlation measurements -decay of exotic ions neutron -decay EURONS PCC Meeting, Groningen, 11-12 December 2006

  4. Task T-J11-2: Extended Paul trap set-up at SPIRAL-GANIL (LPC-Caen) sched. realiz. remark Chamber arrangement defined and fixed 12/05 04/08 Detectors defined and built 06/07 Ion cloud monitoring system ready 09/07 -recoil coincidences from decays in Paul trap 12/08 05/05 * • 2005, 2006: > 105 beta-ion coincidences • planning modified • all milestones will be realized in time EURONS PCC Meeting, Groningen, 11-12 December 2006

  5. LPC-Caen V-A theory 6He -recoil coincidences EURONS PCC Meeting, Groningen, 11-12 December 2006

  6. Task T-J11-3: Improved set-up for SHIPTRAP (SHIPTRAP-GSI) sched. realiz. remark Detector concept for in-trap decay ready 12/05 12/06 Test of cryogenic Penning trap system 12/06 DAQ and control system ready 06/07 First measurements 12/08 • some delay due to problems to find postdoc; • solved as of 01/07 • steady progress; milestones not at stake • 52 masses (17 new; accuracy 5 x 10-8) EURONS PCC Meeting, Groningen, 11-12 December 2006

  7. cryogenic trap test set-up SHIPTRAP-GSI EURONS PCC Meeting, Groningen, 11-12 December 2006

  8. Task T-J11-4: New detector and in-trap mass spectrometry with ISOLTRAP (CERN-ISOLDE) sched. realiz. remark Test set-up for CDEM 09/05 08/05 Software development 03/06 01/06 Test CDEM 12/06 05/06 * Mass spectrometry 12/08 08/06 * • all milestones realized • detection efficiency improved by factor ~3 • masses of A = 61-63 Fe nuclides (not produced at ISOLDE) EURONS PCC Meeting, Groningen, 11-12 December 2006

  9. ISOLTRAP/CERN-ISOLDE EURONS PCC Meeting, Groningen, 11-12 December 2006

  10. Task T-J11-5: In-trap spectrosc. & high-resol. mass spectrom. with JYFLTRAP(Jyväskylä Univ.)sched. realiz. remark Data acquisition operational 03/06 80% New trap available 12/07 06/06 * Results of multiply charged ions study 12/06 60% First measurements with upgraded system 12/07 09/06 * • 1st version of DAQ succesfully tested; being improved • tests with doubly-charged ions already performed • preparations for higher charge states in progress • 110 masses measured (accuracy up to 8 x 10-9) EURONS PCC Meeting, Groningen, 11-12 December 2006

  11. Jyväskylä Univ. in-trap CE spectrum new decay scheme EURONS PCC Meeting, Groningen, 11-12 December 2006

  12. Task T-J11-6: Electron tracking detector for beta-decay experiments (UJ-Krakow)sched. realiz. remark Concept of prototype available 12/05 12/05 Prototype operational 12/08 Readout and DAQ system available 12/08 • MWDC operating at P>0.3 bar • ~ linear response (tdrift vs. pos.) • spatial resolution ~1.5 mm • detector for LPC-Caen in progress EURONS PCC Meeting, Groningen, 11-12 December 2006

  13. 90Sr source MWDC detector UJ-Krakow scintillator PMT Test set-up EURONS PCC Meeting, Groningen, 11-12 December 2006

  14. Task T-J11-7: Detector development for WITCH (KU-Leuven) sched. realiz. remark Operation of MCP+pin diodes in high B-field 06/06 12/06 Normalization for recoil ion counting 12/05 12/07 Measurement of recoil ion energy spectrum 12/06 11/06 Detector set-up for beta-spectroscopy 12/08 • tests of MCP finished; Si pin diode ongoing • new concept for normalization (scintillator i.s.o. Si pin diodes) • first recoil ion spectrum measured (normalization via t1/2) • Geant-4 code for simulation of beta-spectra available EURONS PCC Meeting, Groningen, 11-12 December 2006

  15. KU-Leuven 39K MCP in magnetic field 39K 124In recoil spectrum 124In recoil spectrum EURONS PCC Meeting, Groningen, 11-12 December 2006

  16. Task T-J11-1 & 8: Neutron decay retardation spectrom. + simulations and calculations (U-Mainz; Budapest) sched. realiz. remark Design calculations finished 12/06 12/05 * Systematic effects understood 06/08 Data analysis under control 12/08 Spectrometer tested 12/05 10/05 Electron source (replaced by He source) 06/06 09/07 System tested and operational 03/08 First experiment12/08 EURONS PCC Meeting, Groningen, 11-12 December 2006

  17. U-Mainz; Budapest proton detector magnetic shielding EURONS PCC Meeting, Groningen, 11-12 December 2006

  18. JRA-11 (TRAPSPEC)Improvements and developments of ion traps, spectrometers and detectors forlow-energy nuclear physics experiments EURONS PCC Meeting, Groningen, 11-12 December 2006

  19. EURONS PCC Meeting, Groningen, 11-12 December 2006

  20. EURONS PCC Meeting, Groningen, 11-12 December 2006

  21. EURONS PCC Meeting, Groningen, 11-12 December 2006

  22. EURONS PCC Meeting, Groningen, 11-12 December 2006

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