MATS: High-Precision Experiments Using an Advanced
Trapping System at FAIR
Daniel Rodríguez Departamento de Física Atómica Molecular y Nuclear
Universidad de Granada
For the MATS collaborationNUSTAR week 2012,
Kolkata (India) October 2012
Outline
• Motivation
• Penning-trap techniques for radioactive isotopes
• Recent highlights
• Layout of the MATS facility
• On-going developments with prospects for MATS
• Funding
• External requirements for MATS
• Summary & outlook
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
The MATS collaboration
• BELGIUM: Université Libre de Bruxelles Paul-Henri Heenen, Katholieke Universiteit Leuven Rafael Ferrer
• CANADA: TRIUMF Jens Dilling, Paul Delheij, Alain Lapierre, Maxime Brodeur, Stephan Ettenauer, Thomas Brunner
• FINLAND: University of Jyväskylä, Juha Äystö, Ari Jokinen, Iain Moore, Veli Kolhinen
• FRANCE: CSNSM-IN2P3,CNRS Georges Audi, David Lunney, Sarah Naimi, CEA Saclay Michael Bender
• GERMANY: Max-Planck-Institute for Nuclear Physics Klaus Blaum, R. Burcu Cakirli, Sergey Eliseev, Yuri A. Litvinov,Szilard Nagy, Julia Repp, Christian Roux, José R. Crespo López-Urrutia Ernst-Moritz-Arndt University Gerrit Marx, LutzSchweikhard, Falk Ziegler, Sebastian George, Friedrich-Alexander University Erlangen-Nürnberg Paul-Gerhard ReinhardGSI Dietrich Beck, Michael Block, Michael Dworschak, Hans Geissel, Sophie Heinz, Frank Herfurth, Dennis Neidherr,Wolfgang Quint, Martin Winkler, Enrique Minaya-Ramirez, Johannes Gutenberg University Klaus Eberhardt, ChristopherGeppert, Jens Ketelaer, Wilfried Nörtershäuser, Birgit Schabinger, Justus-Liebig University Christoph Scheidenberger,Timo Dickel, Christian Jesch, Martin Petrick, Wolfgang R. Plaß Ludwig-Maximilians University München Robert Meissner,Jerzy Szerypo, Peter G. Thirolf, Christine Weber, Facility for Antiproton and Ion Research in Europe FAIR AlexanderHerlert, Physikalisch-Technische Bundesanstalt (PTB) Joachim Ullrich.
• INDIA: Variable Energy Cyclotron Centre Manir Ahammed, Parnika Das, Anirban De, Amlan Ray, Raniganj Girls' CollegeAlokkumar De
• RUSSIA: St. Petersburg Nuclear Physics Institute Yuri Gusev, Abdurahman Khusainov, Dmitri Nesterenko, Yuri N.Novikov, A. Popov, Maxim Seliverstov, Alexander Vasiliev , Gleb Vorobjev
• SPAIN: University of Granada Juan Manuel Cornejo, Antonio M. Lallena, Antonio Lorenzo, Daniel Rodríguez, IFIC-CSICBerta Rubio, José Luis Taín, Alejandro Algora, University of Huelva José Enrique García Ramos, CIEMAT Daniel Cano-Ott, Trinitario Martínez, UPC M. Belén Gómez Hornillos, Guillén Cortés
• SWITZERLAND: CERN Susanne Kreim
• SWEDEN: Stockholm University, Reinhold Schuch, Markus Suhonen, Andreas Solders, Matthias Hobein
• USA: Lawrence Livermore National Laboratory Dieter Schneider Michigan State University Georg Bollen, StefanSchwarz, Louisiana State University Milan Matos
11 countries, 27 institutes, 90 members
10-8
10-7
10-6
1990 2000 2010 2020
Masses & Identification
Mass models
Nuclear Structure
Halo Nuclei
Heavy elements
Nuclear Astrophysics
Fundamental Interactions
Neutrino physics
Motivation
Penning-trap physics
In-trap & trap assisted spectroscopy
m
mδ
ISOLTRAPCPT, JYFLTRAP, SHIPTRAP
LEBIT, TITAN, TRIGA-TRAP
MATS
At
FAIR
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Type of
Reacion
ISOL
TRAP
CPT SHIP
TRAP
JYFL
TRAP
LEBIT TITAN TRIGA
TRAP
CARIBU MLL
TRAP
MATS
ISOL X X
Fusion X X
IGISOL X
Fragm. X X
Neutron induced fission
X X
Spontaneous
fission
X
HCI X X
Motivation
Complementarity of MATS with other Penning traps
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
1990 2000 2010 2020
TOF-ICR
RFQ buncher
Carbon clusters
Gas stopping cells
Cryogenic RFQ buncher
Octopolar excitation
Ramsey method
Highly-charged ions
Cryogenic gas stopping cell
Penning-trap techniques
Evolution
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
ISOLTRAPCPT, JYFLTRAP, SHIPTRAP
LEBIT, TITAN, TRIGA-TRAP
MATS
At
FAIR
+ singleIon
detection
Increasing
accuracy
&
sensitivity
High-precision mass measurements at RIB
Survey
High-lights 2011-2012: S. Eliseev et al., PRL 106 (2011) 052504, E. Haettner et al., PRL 106 (2011) 122501, S. Eliseev et al., PRL 107 (2011) 152501, S.
Ettenauer et al., PRL 107 (2011) 272501, M. Brodeur et al., PRL 108 (2012) 052504, D. Fink et al., PRL 108 (2012) 062502, M. Brodeur et al., PRL108
(2012) 212501, J. Hakala et al., PRL 109 (2012) 032501, A. T. Gallant et al., PRL 109 (2012) 032506, E. Minaya Ramirez et al., Science 337 (2012) 1207.
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
100 101 102 103 104 105 10610-9
10-8
10-7
SHIPTRAP
(GSI)
CPT
(ANL)
ISOLTRAP
(CERN)LEBIT
(MSU)
Rela
tive
ma
ss u
nce
rtain
ty
Half-life (ms)
TITAN
(TRIUMF)
JYFLTRAP
(JYVASKYLA)
(Talk by H. Weick)
Practicable with higher production rates
Storage rings
TRIGA-TRAP
MLL-TRAP
TRAPSENSOR
Recent highlights (TITAN)
Nuclear (Penning-trap) astrophysics at TRIUMF (June 2012)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
rp-process (highly-charged ions)
V. Simon et al., Phys. Rev. C 85 (2012) 064308
Recent highlights (TITAN)
Nuclear (Penning-trap) astrophysics at TRIUMF (June 2012)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
rp-process (highly-charged ions)
V. Simon et al., Phys. Rev. C 85, 064308 (2012)
Recent highlights (SHIPTRAP)
NUSTAR (Penning-trap) experiment at GSI (September 2012)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
• The isotope with lowest production rate ever measured in a Penning trap (256Lr, 60(18) nb) �48 ions detected in 93 hours !!!
E. Minaya Ramirez et al., Science 337 (2012) 1207
Nuclear Structure (minute production)
Layout of the MATS facility
TDR approved by FAIR STI in May 2010
Gas catcher
(Giessen, GSI, Jyväskylä, KVI)
Dipole magnet
(Jyväskylä)
RFQ buncher
(Jyväskylä)
MR-TOF-MS
(Giessen)
LaSpec facility
(talk by W. Nörtershäuser)
MATS Penning traps
(LMU, Granada, GSI, Mainz,
MPIK, Sweden, VECC)
EBIT
(MPIK)
Spectroscopy setup
(IFIC, UPC)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Beam line, ion sources,
identification
(Greifswald, PNPI)
In-trap decay
(LMU, PNPI)
Layout of the MATS facility
TDR approved by FAIR STI in May 2010
Gas catcher
(Giessen, GSI, Jyväskylä, KVI)
Dipole magnet
(Jyväskylä)
RFQ buncher
(Jyväskylä)
MR-TOF-MS
(Giessen)
LaSpec facility
(talk by W. Nörtershäuser)
MATS Penning traps
(LMU, Granada, GSI, Mainz,
MPIK, Sweden, VECC)
EBIT
(MPIK)
Spectroscopy setup
(IFIC, UPC)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Beam line, ion sources,
identification
(Greifswald, PNPI)
In-trap decay
(LMU, PNPI)
Project start @ TRIGA (Mainz): 01/08
Start data taking: 05/09
TRIGA-TRAPK. Blaum
TRIGA-LASERW. Nörtershäuser
ECR ion source
Mass separatorRFQ
Developments
The Penning-trap system TRIGA-TRAP (Mainz & MPIK)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
J. Ketelaer et al., Nucl. Instrum. Methods A 594, 162 (2008)
Project start @ TRIGA (Mainz): 01/08
Start data taking: 05/09
TRIGA-LASERW. Nörtershäuser
ECR ion source
Mass separatorRFQ
Developments
The Penning-trap system TRIGA-TRAP (Mainz & MPIK)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
J. Ketelaer et al., Nucl. Instrum. Methods A 594, 162 (2008) TRIGA-TRAPK. Blaum
Recent results (TRIGA-TRAP)
The half-life of 184Os
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Neutrino-less double EC (0νννν2ɛ) Is the neutrino a Majorana or Dirac particle?
0n2ɛ might be resonantly enhanced (T1/2~1025 y)
Contribution of Penning traps:
Search for nuclides with ∆=(Qεε−B2h-Eγ) < 1 keV
by measurements of Qεε –values
at ~100 eV accuracy level
Recent results (TRIGA-TRAP)
The half-life of 184Os
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Neutrino-less double EC (0νννν2ɛ) Is the neutrino a Majorana or Dirac particle?
0n2ɛ might be resonantly enhanced (T1/2~1025 y)
Contribution of Penning traps:
Search for nuclides with ∆=(Qεε−B2h-Eγ) < 1 keV
by measurements of Qεε –values
at ~100 eV accuracy level
TRIGA-TRAP Q-value = 1453.68(0.58) keVSeveral terms calculated by
V.M. Shabaev et al., & T. Rodríguez et al.
C. Smorra, T. Rodríguez et al. (2012), in press
• UGR lab finished in March 2012• Photo: 20/07/2012
Quantum Sensor
test bench (Ca+ ions)
The beamline will serve for
tests for MATS
Location for laser system for
Mg+ ions cooling (FEDER2010)
Superconducting
magnet available at
UGR in October 2012
Developments
The Penning-trap system TRAPSENSOR (Granada)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
D. Rodríguez , Appl. Phys. B 107 (2012) 1031
• UGR lab finished in March 2012• Photo: 20/07/2012
Quantum Sensor
test bench (Ca+ ions)
The beamline will serve for
tests for MATS)
Location for laser system for
Mg+ ions cooling (FEDER2010)
Superconducting
magnet available at
UGR in October 2012
Developments
The Penning-trap system TRAPSENSOR (Granada)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
PT under construction
D. Rodríguez , Appl. Phys. B 107 (2012) 1031
• UGR lab finished in March 2012• Photo: 20/07/2012
Quantum Sensor
test bench (Ca+ ions)
The beamline will serve for
tests for MATS)
Location for laser system for
Mg+ ions cooling (FEDER2010)
Superconducting
magnet available at
UGR in October 2012
Developments
The Penning-trap system TRAPSENSOR (Granada)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
PT under construction
D. Rodríguez , Appl. Phys. B 107 (2012) 1031
More on Penning traps tomorrow by Amlan Ray (VECC)
Developments
The detector trap (LMU-Munich)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Arrangement of a cubic detector trap
Main characteristics:
- single-sided Si-strip detector- active area: 30 x 30 mm2
- depletion depth: 300 mm- 30 strips: pitch = 1 mm- operation voltage: -100 V- energy resolution: DEa < 20 keV- glued on AlN ceramic circuit board- customized connector (PEEK)- spring-loaded contact pins - multiwire ribbon cables (Kapton)
Assembling a customized Si-strip detector
Novel approach: ”detector trap”
Goal within MATS:enable in-trap and conversion-electron spectroscopyexploit stored ions as carrier-free source
R & D status: development of UHV & cryo-compatible, position-sensitive a detector from scratch
A set of 12 strip detectors has been produced and has been characterized !!!
P. Thirolf, C. weber
Developments
Trap-assisted spectroscopy (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Measurement trap
Penning trap as
high-resolution
mass separator
(also at JYFLTRAP
→→→→ See A. Algora et al., PRL 105 (2010) 202501)
Detectors
(D. Rudolph et al.,)
M. Block et al.,
Developments
MR-TOF(Giessen)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
10-8 mbar
Kinetic Energy1.5 keV
CurvedRFQs
Injection Trap System
Time-of-FlightAnalyzer
10-4 mbar
10-2 mbar
EnergyBuncher
Ion Gate IsochronousSEM
Post-AnalyzerReflector
Gate Detectors
InternalIon Source
10-6 mbar
Ions
SeparatedIons
Mass Measurement
Aux. Detector
Full Mass Range, m/∆m ~ 4000m/∆m > 105,
Mass Accuracy 10-6-10-7
m/∆m > 105
W.R. Plaß et al., NIMB 266 (2008) 4560
IsobarSeparation
Mode
HighResolution
Mode
BroadbandMode
Developments
MR-TOF(Giessen)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
10-8 mbar
Kinetic Energy1.5 keV
CurvedRFQs
Injection Trap System
Time-of-FlightAnalyzer
10-4 mbar
10-2 mbar
EnergyBuncher
Ion Gate IsochronousSEM
Post-AnalyzerReflector
Gate Detectors
InternalIon Source
10-6 mbar
Ions
SeparatedIons
Mass Measurement
Aux. Detector
Full Mass Range, m/∆m ~ 4000m/∆m > 105,
Mass Accuracy 10-6-10-7
m/∆m > 105
W.R. Plaß et al., NIMB 266 (2008) 4560
IsobarSeparation
Mode
HighResolution
Mode
BroadbandMode
PERFORMANCE
• Mass Resolving Power: 600,000• Mass Measurement Accuracy:~10-7
• Measurement Duration: ~10 ms• Sensitivity: ~10 ions• Repetition Rate: up to 400 Hz• Transmission efficiency: up to 70%• Ion Capacity: > 106 ions / s• Isobaric Dynamic Range: > 104
World-wide unique combination of performance characteristics, ideally suited for the LEB of the Super-FRS
Developments
Control system (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
The largest part of the software for the MATS control system is already available at GSI.Right now additional software packages are developed, like a new graphical user interface,which should be:
• easy to use(all controllable elementshave to be reached with notmore than two mouse clicks)
• easy to maintain(small changes in theconfiguration, like exchange of a PS can already be done within a couple of minutes)
• easy to extend (to be done)(larger changes, likechanging of beam line structure consume right nowtoo much time)
Funding
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Institute Commitment
(k€)
Secured
(k€)
Univ. Greifswald 505.0 103.0
PNPI 227.0 227.0
Univ. Jyväskylä 256.1 256.1
MPIK-Heidelberg 1,074.0 448.5
GSI 464.0 -
VECC Kolkata 171.0 -
Orsay/ Univ. Paris Sud 52.3 -
Univ. Granada 157.9 -
Univ. Stockholm 40.0 -
LMU-Munich 179.7 120.0
Univ. Giessen 287.1 238.0
TOTAL 3,414.1 1,392.6
External requirements for MATS
The rare ion beam separator Super-FRS
• Gas cell needs well separatedbeam ⇒ otherwise too muchionization load from unwantedisotopes
• Energy bunching is required tokeep the gas cell reasonably shortand to operate it at reasonablepressures.
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
External requirements for MATS
The cryogenic stopping cell for the LEB
223Ra source
ExtractionRFQ
DC cageelectrodes
RF carpet
M. Ranjan et al., Europhys. Lett. 96 (2011) 52001
M. P. Reiter, Master Thesis, Justus-Liebig-Universität Gießen (2011)
100 cm
Inner chamber(cooling by cryo-cooler
down to 60...70 K)
Outer chamber(room temperature)
Insulationvacuum
Exit hole
Developed in Collaboration
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Beam from FRS
External requirements for MATS
Experimental setup at the FRS (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Cryogenic stopping cell
Diagnosticsunit
Time-of-flightmass spectrometerOn-line test of the with
238U projectile fragmentsproduced at 1 GeV/u atthe FRS in October 2011and July/August 2012
Courtesy by W.R. Plaß
Beam from FRS
External requirements for MATS
Experimental setup at the FRS (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Cryogenic stopping cell
Diagnosticsunit
Time-of-flightmass spectrometerOn-line test of the with
238U projectile fragmentsproduced at 1 GeV/u atthe FRS in October 2011and July/August 2012
• Ion survial and extraction efficiency ~ 50%
• Extraction times ~ 25 msCourtesy by W.R. Plaß
Beam from FRS
External requirements for MATS
Experimental setup at the FRS (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Cryogenic stopping cell
Diagnosticsunit
Time-of-flightmass spectrometerOn-line test of the with
238U projectile fragmentsproduced at 1 GeV/u atthe FRS in October 2011and July/August 2012
• Ion survial and extraction efficiency ~ 50%
• Extraction times ~ 25 ms
• MR-TOF-MS commissioned on-line
• First direct mass measurements with an MR-TOF-MS, including 213Rn (T1/2 = 20 ms)
Courtesy by W.R. Plaß
Summary & Outlook
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
• MATS will incorporate the most advanced technical developments on Penning traps, at FAIR.
• This will allow continuing and complementing the successful measurement program carried out at existing facilities.
• The Technical Design Report was approved by the FAIR STI in May 2010, and since them, many developments have been accomplished.
• MATS will also allow for other outstanding experiments besides mass measurements.
• Several groups have received funding, for R&D and, to start the construction of the different components.
• The MATS system will be tested and ready before FAIR comes into operation.
• External requirements like the cryogenic gas stopping cell are in an advanced stage.
• MATS needs still the energy buncher and the LEB to perform the measurements.
Thank you very much to
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
• Klaus Blaum (MPIK):
• Peter Thirolf and Christine Weber (LMU-Munich)
• Wolfgang Plass (Giessen)
• Michael Block (GSI)
• Dennins Neidherr (GSI)
• Y. Novikov (PNPI)
• Juan Manuel Cornejo (Granada)
For their contribution to this talk
• The MATS collaboration
For the work
• all of you
For your attention
Thank you very much to
Contributions from Interim MATS MoU (15/02/2011)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
Contributions
Pre-construction MoU
Developments
State selection by half-life (GSI)
“NUSTAR week 2012” Kolkata • October 2012 D. Rodríguez
α-spectrum for different storage time in the Penning trap
• short-lived state decays
• a-daughter not captured due to high recoil
• preparation of a single state
• in addition: mass spectrometric cleaning possible
195Po195Po
(13/2+)
(3/2-)
T1/2 = 1.92 s
T1/2 = 4.64 s
Ea =6.64 MeV
Ea = 6.84 MeV
L.-L. Andersson et al., GSI Scientific Report, NUSTAR-SHE (2011)