Universität zu Köln

Bree, N., Wrzosek-Lipska, K., Butler, P. A., Gaffney, L. P., Grahn, T., Huyse, M., Kesteloot, N., Pakarinen, J., Petts, A., Van Duppen, P. and Warr, N. (2015). X-ray production with heavy post-accelerated radioactive-ion beams in the lead region of interest for Coulomb-excitation measurements. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 360. S. 97 - 103. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1872-9584

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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 0(2)(+) -> 0(1)(+) transitions. Different targets were used, and the X-rays were detected by the Miniball gamma-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 Hg-182,Hg-184,Hg-186,Hg-188 isotopes is presented. 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 production. 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 compared to a theoretical approach. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Bree, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wrzosek-Lipska, K. UNSPECIFIED UNSPECIFIED UNSPECIFIED Butler, P. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gaffney, L. P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grahn, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Huyse, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kesteloot, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pakarinen, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Petts, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Van Duppen, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Warr, N. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-392263
DOI:	10.1016/j.nimb.2015.08.017
Journal or Publication Title:	Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
Volume:	360
Page Range:	S. 97 - 103
Date:	2015
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1872-9584
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SHELL VACANCY PRODUCTION; ATOM COLLISIONS; CROSS-SECTIONS; IONIZATION; NUCLEI; CURVE Multiple languages Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/39226