Title: X-ray production with heavy post-accelerated radioactive-ion beams in the lead region of interest for Coulomb-excitation measurements
Authors: Bree, Nick ×
Wrzosek-Lipska, Kasia
Butler, P. A
Gaffney, Liam
Grahn, T
Huyse, Mark
Kesteloot, Nele
Pakarinen, J
Petts, A
Van Duppen, Piet
Warr, N #
Issue Date: 2015
Publisher: Elsevier
Series Title: Nuclear Instruments & Methods in Physics Research B vol:360 pages:97-102
Abstract: Characteristic K X-rays have been observed in Coulomb-excitation experiments with heavy radioactive- ion beams in the lead region (Z = 82), produced at the REX-ISOLDE facility, and were used to identify the decay of strongly converted transitions as well as monopole 0þ2 ! 0þ1 transitions. Different targets were used, and the X-rays were detected by the Miniball c-ray spectrometer surrounding the target position. A stable mercury isotope, as well as neutron-deficient mercury, lead, polonium, and radon isotopes were studied, and a detailed description of the analysis using the radioactive 182,184,186,188Hg isotopes is pre- sented. Apart from strongly converted transitions originating from the decay of excited states, the heavy-ion induced K-vacancy creation process has been identified as an extra source for K X-ray produc- tion. Isolating the atomic component of the observed K X-rays is essential for a correct analysis of the Coulomb-excitation experiment. Cross sections for the atomic reaction have been estimated and are com- pared to a theoretical approach.
ISSN: 0168-583X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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