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Erlangen 2018 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 28: Precision Spectroscopy V - highly charged ions (joint session A/Q)

A 28.7: Vortrag

Mittwoch, 7. März 2018, 15:30–15:45, K 1.016

Commissioning of a detection system for forward emitted XUV photons at the ESRM. Bussmann1, A. Buß2, C. Egelkamp2, L. Eidam3, V. Hannen2, Z. Huang4, D. Kiefer5, S. Klammes5, Th. Kühl6,7,8, M. Loeser1, X. Ma4, W. Nörtershäuser9, H.-W. Ortjohann2, R. Sánchez6,9, M. Siebold1, Th. Stöhlker6,7,10, J. Ullmann7,9,10, J. Vollbrecht2, Th. Walther5, H. Wang4, Ch. Weinheimer2, D. Winters6, and •D. Winzen21Helmholtz-Zentrum Dresden-Rossendorf — 2Institut für Kernphysik, WWU Münster — 3Institut für Theorie Elektromagnetischer Felder, TU Darmstadt — 4Institute of Modern Physics, CAS Lanzhou — 5Institut für Angewandte Physik, TU Darmstadt — 6GSI, Darmstadt — 7Helmholtz-Institut Jena — 8Institut für Physik, Uni Mainz — 9Institut für Kernphysik, TU Darmstadt — 10Institut für Optik und Quantenelektronik, Uni Jena

The Institut für Kernphysik in Münster developed an XUV-photon detection system for laser spectroscopy measurements at the ESR. In a test beam time for laser cooling with 12C3+-ions at β≈0.47, the 2S1/22P1/2 and the 2S1/22P3/2 transitions were investigated to commission the system. The detector features a movable cathode plate which is brought into the vicinity of the beam to collect forward emitted Doppler shifted photons (λlab≈93 nm). The photons produce mostly low energetic (<3 eV) secondary electrons which are electromagnetically guided onto an MCP detector. Preliminary results of the beam time will be presented. This work is supported by BMBF under contract number 05P15PMFAA.

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