LASPEC

1. LASPEC Status and Activities Wilfried Nörtershäuser University Mainz 2nd Meeting of FAIR Experiment Spokespersons GSI, February 25, 2009

2. Collaboration Issues New Board • Spokesperson: Wilfried Nörtershäuser • Deputy: Iain Moore • Technical Director: Christopher Geppert

3. Laser SpHERe Frequency-Comb Based Collinear Spectroscopy: Charge Radius of 11Be

4. Layout at LEB MATS - LaSpec DESPEC ‹―› Gas catcher HISPEC energy buncher S-FRS

5. LaSpec‘s Sub-Projects collinear laser spectroscopy of ions (P. Campbell, Manchester) laser-desorption resonance ionization spectroscopy (M. Seliverstov, Mainz) optical pumping and collinear laser spectroscopy on atoms (W. Nörtershäuser, Mainz) ß-nuclear magnetic resonance (G. Neyens, Leuven)

6. Concept of LaSpec Test Setup at the TRIGA Reactor TRIGA ion source beamline B mass separator switchyard 30-60 kV gas-transport system TRIGA-LASER TRIGA-TRAP

7. Laser Concept of LaSpec Test Setup at the TRIGA Reactor TRIGA TRAP by MATS TRIGA LASER for LaSpec

8. charge exchange cell isolated platform for ion deceleration voltage, incl. ion kicker switchyard transfer tube deflection chamber 0°,45°; combi-nation of kicker & fixed deflection plates 2 m, incl. Einzel lens doublet optional port for off-line test ion source, incl. Faraday cup, incl. vertical steering optical detection beam manipulation (interims design) incl. spherical mirrors, incl. segmented drift tubes horiz. & vert. steerer, quadrupole doublet support frame (interims design) rail system for axial translation of all beam line components axis heigth: current: 1.35 m LaSpec: 2.00 m Atomic Beam Line Design vacuum: Flange standard: currently: ISO-K LaSpec: ISO-CF Pumping system: currently three turbo pumps three oil free scroll pumps Pressure regime: currently: ~ 210-7 mbar LaSpec:  10-8 mbar at detection region

9. Status of the Atomic Beam Line Prototype

10. Status of the Atomic Beam Line Prototype retardation & charge exchange cell 10° deflector chamber quadrupole doublet & steerer plates

11. construction/design ion beam monitoring: Danfysik fork scanners [1 set ordered] simultaneous laser/ion beam detector [to be built] linear actuator experiment/measurement CCD camera off-line ion source: surface ion source at 10° deflector chamber for Rb+ ion beams interims optical detection region: vacuum chamber and mirrors [under construction] photomultiplier from GSI [available] LaSpec common development with ionic beamline !? neutralization: optimisation of working parameters for charge exchange cell; neutralization of Rb ion beam laser system: existing equipment from GSI/Uni Mainz [available] Ion / laser beam laser spectroscopy: systematic tests by laser spectroscopy of known atomic transitions on stable Rb isotopes data acquisition: to be designed; not started yet detector unit Status of the Atomic Beam Line Prototype MCP stack phosphor screen outlook near future/ to do list … e- Ion / laser beam conversion grid (-HV) acceleration grid ( ) K. Kruglov et al., NIM A (2000) 595

12. Atomic Beamline Timetable LaSpec TRIGA-Laser 2009 start of construction phase 1 at FAIR 2007 start design of beamline 2008 start of beamline construction 2009 first test measurements, cont. beamline improvement 2009 off-line measurements 2012 (???) 2010 on-line measurements cont. beamline improvement 2012 setup of duplicated beamline components 2011 duplicate final evolution stage of beamline components 2013 LaSpec on-line

13. Comparison to commitments in MoU First beam from S-FRS taken from NuSTAR MoU, Annex 3.6 ……ahead of schedule

14. Summary LASPEC-MATS Workshop 2008 MATALASCANAS (Huelva) October Status Collinear Spectroscopy Atom Beamline • prototype under construction first tests this year • first draft of TDRready • proposal submitted to funding agency (BMBF) in November as a • part of the NUSTAR “Forschungsschwerpunkt”

15. LASPEC Money Matrix Total Sum (CostBook): 591 k€

16. STOP END

17. First beam from S-FRS Comparison to commitments in MoU taken from NuSTAR MoU, Annex 3.6