Resonant laser ionization of polonium at RILIS-ISOLDE for the study of ground- and isomer-state properties

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:266

Article; Proceedings Paper

Cocolios, Thomas E.²  Marsh, Bruce A.¹  Fedosseev, Valentine N.¹  Franchoo, Serge³  Huber, Gerhard⁴  Huyse, Mark²  Ionan, Alexandra M.⁵  Johnston, Karl¹  Koester, Ulli⁶  Kudryavtsev, Yuri²  Seliverstov, Maxim^4,5  Noah, Etam¹  Stora, Thierry¹  Van Duppen, Piet² 

[1] CERN, ISOLDE, CH-1211 Geneva 23, Switzerland

[2] Katholieke Univ Leuven, Inst Kern & Stralingsfys, B-3001 Louvain, Belgium

[3] Inst Phys Nucl, F-91406 Orsay, France

[4] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[5] Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[6] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

关键词: Laser ionization;    Polonium;    Production yield;    Optical transition;    Saturation;   

DOI  :  10.1016/j.nimb.2008.05.142

来源: Elsevier

【 摘 要 】

Three new ionization schemes for polonium have been tested with the resonant ionization laser ion source (RILIS) during the on-line production of Po-196 in a UCx target at ISOLDE. The saturation of the atomic transitions has been observed and the yields of the isotope chain Po-193-198,Po-200.202,Po-204 have been measured. This development provides the necessary groundwork for performing in-source resonant ionization spectroscopy on the neutron-deficient polonium isotopes (Z = 84). (C) 2008 Elsevier B.V. All rights reserved.

【 授权许可】

Free