Speaker
Ms
Alena Ananyeva
(Goethe-Universität, 60325 Frankfurt am Main, Germany)
Description
In the present contribution we report on the first measurement of Resonant Coherent Excitation of Li-like uranium ions. A cooled, well collimated beam of U89+ at 192 MeV/u delivered by the Experimental Storage Ring (ESR) at GSI, Darmstadt (Germany), was sent through a 10 μm effective thickness Si-crystal mounted on a high precision, 5-axis goniometer under the (220) planar orientation. The resonant ion excitation was identified by measuring the yield of the x-rays emitted during the de-excitation process of the channelled ions as a function of the crystal orientation. Using the absolute beam velocity measured at the electron cooler in the ESR, the transition energy was determined from the resonance curve with a precision of 10-4.
Primary author
Ms
Alena Ananyeva
(Goethe-Universität, 60325 Frankfurt am Main, Germany)
Co-authors
Dr
Angela Braeuning-Demian
(b GSI Helmholtzzentrum, 64291 Darmstadt, Germany)
Dr
Denis Dauvergne
(IPNL - Institut de Physique Nucléaire de Lyon, 69100 Lyon, France)
Dr
Harald Bräuning
(GSI Helmholtzzentrum, 64291 Darmstadt, Germany)
Mr
Shintaro Suda
(Tokyo Metropolitan University, Hachioji, 192-0397 Tokyo, Japan)
Mr
Taiki Shindo
(Tokyo Metropolitan University, Hachioji, 192-0397 Tokyo, Japan)
Prof.
Toshiyuki Azuma
(Tokyo Metropolitan University, Hachioji, 192-0397 Tokyo, Japan)
Prof.
Yasunori Yamazaki
(RIKEN Advanced Science Institute, Wako, 351-0198 Saitama, Japan)
Dr
Yasuyuki Kanai
(RIKEN Advanced Science Institute, Wako, 351-0198 Saitama, Japan)
Dr
Yuji Nakano
(Tokyo Metropolitan University, Hachioji, 192-0397 Tokyo, Japan)
Prof.
Yuri Pivovarov
(National Research Tomsk Polytechnic University, 634050 Tomsk, Russia)
