Precision Experiments and Photon Spectroscopy at the Super FRS - PowerPoint PPT Presentation

Precision Experiments and Photon Spectroscopy at the Super FRS Magdalena G ό rska Polish-German Meeting, Warsaw, November 24, 2003 • Motivation for the LEB • Energy and range focusing • Experimental opportunities: – Agata – Laser Spectroscopy – Ion Traps

Motivation for the LEB (Low energy high-quality beams, complementary to ISOL) SIS 200: 2/s 8 SIS 200: 1 10 /s SIS 200: 65/h SIS 200: 8/s • Neutron rich nuclei (H. Geissel) • Shells and shapes 9 SIS 200: 1 10 /s (shell quenching) • N=Z nuclei (Z. Janas) • Symmetries (A. May) • Astrophysics (H.G., Z.J.) T.R. Werner, J. Dobaczewski, W. Nazarewicz, Z. Phys. A358 (1997) 169

H. Geissel et al., Opportunities NIM A (1989) at the LEB Energy Buncher: B ρ Max = 10 Tm ε x = ±300 π mm mrad ε y = ±200 π mm mrad ∆ p/p acc = ± 2.5% Ion optical R = 600 Z. J. C. Scheidenberger

Collaboration: 42 countries including PL ε (M γ =1,E γ =1MeV) = 0.5

Single-atom spectroscopy Identification of the Doubly Magic Shell structure isomer K - isomerism 100 Sn I prod = 1 ion/s σ ( 100 Sn)=1.8 pb I prod = 0.2 ion/s S t o p p h v a t i o o f t n e t e w t h e o i o s a l r e s u l t m w e r e t h e e r c t n a n d A . H . S L o e r e n s e n i i o n a l d e v e l p . m e n t b y J t i e I c H e a v y o t n s B r e a k - i s o i n g P o w e r o i f R e l a t i v m d w r n h e t h e o y B , F R S e x e r e t r o f t h c e e a t i v i s l t i s(100Sn)=1.8 pb FRS: Zs. Podolyak et al., GANIL : J.M. Daugas et al., Phys. Lett. B491 (2000) 225 Phys. Lett. B476 (2000) 213 Warsaw Group Warsaw Group

Probing new fields at LEB with: LASER Power supplies for beam-line magnets spectroscopy Power - swift monoenergetic exotic beams supplies (gamma-ray spectroscopy) Concrete Paraffine and co ncrete shielding - ISOL type beams Gas Dump cell x, y, E, TOF ∆ (laser spectroscopy, precision experiments) x, y, E, TOF ∆ - beam stopped in thin absorbers Roots blower, Dump gas purification, ( α , β , γ spectroscopy) - see the next talk gas recycling Solid-state physics, Trap medicine, etc. system 35 meter