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Transcript of Nathal Severijns, JRA-11 TRAPSPEC TRAPSPEC JRA-11 EURONS PCC Meeting, Groningen, 11-12 December 2006...
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Design and development of multi-purpose set-ups for precision decay 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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Performance enhancement of Penning-trap experiments by using dedicated new electron- and
ion sourceselectron & ion sources: - reference masses
- study of systematic effects - off-line studies
Retardation spectrometers for recoil-ion spectroscopy for trap-assisted beta-neutrino correlation measurements
-decay of exotic ions
neutron -decay
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Task T-J11-2: Extended Paul trap set-up at SPIRAL-GANIL (LPC-Caen)
sched. realiz. remarkChamber arrangement defined and fixed 12/0504/08
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
6He-recoil coincidences
LPC-Caen
V-A theory
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Task T-J11-3: Improved set-up for SHIPTRAP (SHIPTRAP-GSI) sched. realiz. remark
Detector concept for in-trap decay ready 12/0512/06
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
SHIPTRAP-GSI
cryogenic trap test set-up
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11ISOLTRAP/CERN-ISOLDE
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11Jyväskylä Univ.
in-trap CE spectrum
new decay scheme
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
MWDC detector
90Sr source
scintillator
PMT
UJ-Krakow
Test set-up
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11KU-Leuven
124In recoil spectrum
MCP in magnetic field
124In recoil spectrum
39K
39K
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
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 experiment 12/08
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
U-Mainz; Budapest
magneticshielding
proton detector
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
JRA-11 (TRAPSPEC) Improvements and developments of
ion traps, spectrometers and detectors forlow-energy nuclear physics experiments
Objectives:
1. perform in-trap spectroscopic studies of rare isotopes
2. improve the capabilities, precision and sensitivity of existing trap set-ups
3. perform precise recoil ion spectroscopy
by:
- development of multi-purpose set-ups for precision decay spectroscopy experiments in ion traps,
- development of new trap configurations to house large solid angle detection set-ups,
- enhancing the performance of experiments by using dedicated new electron- and ion sources,
- development of retardation spectrometers for high-resolution recoil-ion spectroscopy for trap-assisted - correlation measurements.
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Description of work: Task T-J11-1: Simulations and calculations (RMKI-Budapest) Subtask T-J11-1.1: Design-optimization Subtask T-J11-1.2: Systematic effects Subtask T-J11-1.3: Data analysis Task T-J11-2: Extended Paul trap set-up at SPIRAL-GANIL (LPC-Caen) Subtask T-J11-2.1: Detection chamber Subtask T-J11-2.2: Detector developments
Subtask T-J11-2.3: Monitoring ion cloud Subtask T-J11-2.4: Test and operation Task T-J11-3: Improved set-up for SHIPTRAP (GSI) Subtask T-J11-3.1: Detector for in-trap decay Subtask T-J11-3.2: Cryogenic Penning trap
Subtask T-J11-3.3: Control system Subtask T-J11-3.4: Test and measurements
Task-T_J11-4: New detector and in-trap mass spectrometry with ISOLTRAP (CERN-ISOLDE)
Subtask T-J11-4.1: Test set-up for CDEM Subtask T-J11-4.2: Software development Subtask T-J11-4.3: Test CDEM Subtask T-J11-4.4: Mass spectrometry
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Description of work: Task-T_J11-5: In-trap spectroscopy & high-resolution mass spectrometry with JYFLTRAP (Jyväskylä Univ.)
Subtask T-J11-5.1: DAQ Subtask T-J11-5.2: Trap geometry Subtask T-J11-5.3: Multiply-charged ions Subtask T-J11-5.4: High-resolution mass spectrometry
Task-T_J11-6: Electron tracking detector for beta-decay experiments (UJ-Krakow) Subtask T-J11-6.1: Electron tracking Subtask T-J11-6.2: Prototype design Subtask T-J11-6.3: Electronics and DAQ Task-T_J11-7: Detector development for WITCH (KU-Leuven) Subtask T-J11-7.1: Detector performance in high magnetic field Subtask T-J11-7.2: Normalization beta detectors Subtask T-J11-7.3: Si detectors Task-T_J11-8: Neutron decay retardation spectrometer (U-Mainz) Subtask T-J11-8.1: Retardation spectrometer Subtask T-J11-8.2: Electron source Subtask T-J11-8.3: Optimization Subtask T-J11-8.4: Beam time
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Milestones: Short title Due date Date
accompl. Remark
Simulations and calculations
M-J11-1.1 Design calculations finished 12/06 12/05
M-J11-1.2 Systematic effects understood 06/08
M-J11-1.3 Data analysis under control 12/08
Extended Paul trap set-up at SPIRAL-GANIL
M-J11-2.1 Chamber arrangement defined and fixed 12/05 planned 04/08
M-J11-2.2 Detectors defined and built 06/07
M-J11-2.3 Ion cloud monitoring system specified and built 09/07
M-J11-2.4 Coincidences measured from decays in Paul trap 12/08 05/05 *
Improved set-up for SHIPTRAP
M-J11-3.1 Detector concept ready 12/05 planned 12/06
M-J11-3.2 Test of trap system possible 12/06
M-J11-3.3 Data acquisition and control system ready 06/07
M-J11-3.4 First measurement with new set-up 12/08
New detector and in-trap mass spectrometry with ISOLTRAP
M-J11-4.1 Test of electronics and vacuum system 09/05 08/05
M-J11-4.2 Test of software 03/06 01/06
M-J11-4.3 Test and specification of the CDEM 12/06 05/06
M-J11-4.4 Specification of the in-trap decay method 12/08 08/06 *
EURONS PCC Meeting, Groningen, 11-12 December 2006Nathal Severijns, JRA-11 TRAPSPEC
TRAPSPECJRA-11
Milestones: Short title Due date Date
accompl. Remark
In-trap spectrosc. & high-resolution mass spectrom. with JYFLTRAP
M-J11-5.1 Data acquisition operational 03/06 80%
M-J11-5.2 New trap available 12/07 06/06 *
M-J11-5.3 Results of multiply charged ion study available 12/06 60%
M-J11-5.4 First measurements with upgraded system 12/07 09/06 *
Electron tracking detector for beta-decay experiments
M-J11-6.1 Concept of prototype available 12/05 12/05
M-J11-6.2 Prototype operational 12/08
M-J11-6.3 Readout and DAQ system available 12/08 Detector development for WITCH M-J11-7.1 Normal operation of MCP and pin diodes in high magnetic
field 06/06 50%;
planned 12/06 M-J11-7.2 Normalization for recoil ion counting available
Measurement of recoil ion energy spectrum 12/05 12/06
11/06
planned 12/07
M-J11-7.3 Detector set-up for beta-spectroscopy operational 12/08
Neutron decay retardation spectrometer
M-J11-8.1 Spectrometer tested 12/05 10/05
M-J11-8.2 Electron source operational 06/06 planned 09/07
M-J11-8.3 System tested and operational 03/08
M-J11-8.4 First experiment 12/08