mats:high-precisionexperimentsusinganadvanced ...€¦ · d. rodríguez , appl. phys. b 107 (2012)...

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


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


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


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.


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)


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)


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)


• 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)


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)


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)


J. Ketelaer et al., Nucl. Instrum. Methods A 594, 162 (2008) TRIGA-TRAPK. Blaum

Recent results (TRIGA-TRAP)

The half-life of 184Os


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


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)


D. Rodríguez , Appl. Phys. B 107 (2012) 1031


Quantum Sensor



tests for MATS)



Superconducting

magnet available at

UGR in October 2012

Developments



PT under construction



Quantum Sensor



tests for MATS)



Superconducting

magnet available at

UGR in October 2012

Developments



PT under construction


More on Penning traps tomorrow by Amlan Ray (VECC)

Developments

The detector trap (LMU-Munich)


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)


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)


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)


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)


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


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.



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


Beam from FRS


Experimental setup at the FRS (GSI)


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





Diagnosticsunit



• Ion survial and extraction efficiency ~ 50%

• Extraction times ~ 25 msCourtesy by W.R. Plaß

Beam from FRS





Diagnosticsunit



• 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


• 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


• 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)


Contributions

Pre-construction MoU

Developments

State selection by half-life (GSI)


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)

mats:high-precisionexperimentsusinganadvanced ...€¦ · d. rodríguez , appl. phys. b 107 (2012)...

Documents