NUPECC meeting in Athens Mar 13, 2015 Anastasios Dimitriou University of Crete& Institute of Nuclear and Particle Physics, Demokritos, Athens Atomic Physics with Accelerators: The APAPES project of the UOC

Present Status of APAPES History and future Presentation by Dr. Anastasios Dimitriou (Univ. of Crete) Post Doctoral researcher of APAPES NUPECC meeting - Athens

Atomic Physics with Accelerators Basic understanding of atomic collision processes Basic understanding of atomic collision processes (simpler systems, isoelectronic studies) NUPECC meeting - Athens High Resolution Electron Spectroscopy of Li-like Ions produced by e- capture to He-like ions in collisions with gas targets Non-statistical production of 1s2s2p 4 P and 1s2s2p 2 P states by e- capture to the 1s2s 3 S state First time in Greece First time in Greece

Basic ion-atom collision processes NUPECC meeting - Athens continuum K L M K capture K-M excitation E a - Auger energy KLM Auger transition e-e interaction Atomic Energy levels K ionization Atomic Structure: q, Z p, Z t, E x, E a … Collision Dynamics: b, V p, v t … Cross section: Few HCI: Few-electrons much simpler environment for testing theories Special interest: Two-electron processes, electron correlations and deviations from the independent particle model M-K radiative transition ExEx VpVp ZpZp ZtZt b e-e- e-e- Ion-atom collision vtvt Projectile Ion Charge q+ Target Atom

Atomic Collision and Electron Spectrometry Laboratory: Interests and Activities Investigation of basic atomic collision mechanisms Determination of absolute state-selective cross sections Zero-degree Auger Projectile Spectrometry (ZAPS) Charge particle optics – development and modeling of electron spectrometers Main Interests THALES : APAPES University of Crete Tandem Laboratory – INPP Demokritos University of Ioannina 600k€ - experiment at 5 MV Tandem Atomic Physics with Accelerators: Projectile Electron Spectroscopy NUPECC meeting - Athens

Main team Dept. of Physics, Univ. of Crete, Heraklion Dept. of Physics, Univ. of Crete, Heraklion Theo Anastasios Ioannis Angelos Theo Anastasios Ioannis Angelos Zouros Dimitriou Madesis Laoutaris Zouros Dimitriou Madesis Laoutaris (Prof & PI) (PostDoc) (PhD student) (MS student) (Prof & PI) (PostDoc) (PhD student) (MS student) NUPECC meeting - Athens

Support Team 5MV Tandem, Institute of Nuclear and Particle Physics 5MV Tandem, Institute of Nuclear and Particle Physics NCSRT Demokritos NCSRT Demokritos Dr. Sotiris Dr. Tasos Dr. Michalis Miltos Theo Harissopulos Lagoyannis Axiotis Andrianis Mertzimekis (Director) (Res.) (Res.) (Accel. Eng.) (Prof.) Univ. of Athens NUPECC meeting - Athens

other other important participants Manolis Bela Omer Genoveva Jose Benis Sulik Sise Martinez-Lopez Paulo Santos (Prof) (Prof) (Prof) (Prof) (Prof) Dept of Physics Univ of Ioannina Greece ATOMKI Debrecen Hungary Univ of Isparta Turkey Dept Fisica Aplicada Madrid, Spain Dept de Fisica Univ Nova de Lisboa Portugal Experiment CPO simulations Zoom lenses Atomic Structure calculations NUPECC meeting - Athens

NUPECC meeting - Athens

APAPES: New beam line for atomic physics November 2011 NUPECC meeting - Athens May 2013 November 2013

Demokritos Setup – new beam line today! NUPECC meeting - Athens

Demokritos Setup – Target 6-way cross and spectroscopy chamber Turbo 70 Turbo 550 Spectrometer chamber Gas cell Beam direction Baratron NUPECC meeting - Athens

New ZAPS setup: Single stage 0 0 HDA with injection lens and 2-D position sensitive detector APAPES (2015) HCI Target gas n t ~10 12 #/cm 3 Differential Pumping ports Focusing and retardation Chamber pressure ~10 -7 Torr Overall efficiency gain ~ High Transmission ~ 90% Paracentric entry NEPECC meeting - Athens

DSP unit DSP unit from ATOMKI Preamps DSP unit 12V power supply 2-D image on PSD X-proj Y-proj 4P4P Projection along energy axis NUPECC meeting - Athens

Auger Electron Spectra for various targets

So far….. Presentations on 7 international conferences 4 more conference presentations the following days At least 7 more until September 1 participation on conference proceedings (HCI 2014) Madesis et al, JPCS 583 (2015) Madesis et al, JPCS 583 (2015) more participation on conference proceedings in progress (CDAMOP 2015) 1 Paper submitted for publication on Rev. Scient. Instr. NUPECC meeting - Athens

In the near future… Go ahead with gas terminal stripper to produce pure ground state C 4+ beam Go ahead with gas/foil post strippers to obtain mixed state beams at different fractions New Sputter source for the 5MV tandem Go ahead on other ion beams (B, Li, O 2, F) NUPECC meeting - Athens

Enjoy being part of the team! NUPECC meeting - Athens Researchers night 2013

The end – thank you for listening More info? Contact: Non-statistical results Tanis et al. PRL 92 (2004) Tanis et al. PRL 92 (2004) Zouros et al. PRA 77 (2008) Zouros et al. PRA 77 (2008) Strohschein et al. PRA 77 (2008) Strohschein et al. PRA 77 (2008) Röhrbein et al, PRA 81 (2010) Röhrbein et al, PRA 81 (2010) Production of pure ground state He-like ion beams Benis & Zouros, PRA 65 (2002) Benis & Zouros, PRA 65 (2002) References CDAMOP New Delhi Mar 11-14, 2015 APAPES publications Madesis et al, JPCS 583 (2015) Madesis et al, JPCS 583 (2015)