Spectroscopic Tools Applied to Element Z = 115 Decay Chains

U. Forsberg; D. Rudolph; P. Golubev; L.G. Sarmiento; A. Yakushev; L.-L. Andersson; A. Di Nitto; Ch.E. Düllmann; J.M. Gates; K.E. Gregorich; C.J. Gross; F.P. Heßberger; R.-D. Herzberg; J. Khuyagbaatar; J.V. Kratz; K. Rykaczewski; M. Schädel; S. Åberg; D. Ackermann; M. Block; H. Brand; B.G. Carlsson; D. Cox; X. Derkx; K. Eberhardt; J. Even; C. Fahlander; J. Gerl; E. Jäger; B. Kindler; J. Krier; I. Kojouharov; N. Kurz; B. Lommel; A. Mistry; C. Mokry; H. Nitsche; J.P. Omtvedt; P. Papadakis; I. Ragnarsson; J. Runke; H. Schaffner; B. Schausten; P. Thörle-Pospiech; T. Torres; T. Traut; N. Trautmann; A. Türler; A. Ward; D.E. Ward; and N. Wiehl

doi:10.1051/epjconf/20146602036

All issues

Volume 66 (2014)

EPJ Web of Conferences, 66 (2014) 02036

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 66, 2014 INPC 2013 – International Nuclear Physics Conference


Article Number		02036
Number of page(s)		4
Section		Nuclear Structure
DOI		https://doi.org/10.1051/epjconf/20146602036
Published online		20 March 2014

EPJ Web of Conferences 66, 02036 (2014)
https://doi.org/10.1051/epjconf/20146602036

Spectroscopic Tools Applied to Element Z = 115 Decay Chains

U. Forsberg¹^a, D. Rudolph¹, P. Golubev¹, L.G. Sarmiento¹, A. Yakushev², L.-L. Andersson³, A. Di Nitto⁴, Ch.E. Düllmann²^,3^,4, J.M. Gates⁵, K.E. Gregorich⁵, C.J. Gross⁶, F.P. Heßberger²^,3, R.-D. Herzberg⁷, J. Khuyagbaatar², J.V. Kratz⁴, K. Rykaczewski⁶, M. Schädel²^,8, S. Åberg¹, D. Ackermann², M. Block², H. Brand², B.G. Carlsson¹, D. Cox⁷, X. Derkx³^,4, K. Eberhardt³^,4, J. Even³, C. Fahlander¹, J. Gerl², E. Jäger², B. Kindler², J. Krier², I. Kojouharov², N. Kurz², B. Lommel², A. Mistry⁷, C. Mokry³^,4, H. Nitsche⁵, J.P. Omtvedt⁹, P. Papadakis⁷, I. Ragnarsson¹, J. Runke², H. Schaffner², B. Schausten², P. Thörle-Pospiech⁴, T. Torres², T. Traut⁴, N. Trautmann⁴, A. Türler¹⁰, A. Ward⁷, D.E. Ward¹ and and N. Wiehl³^,4

¹ Department of Physics, Lund University, S-22100 Lund, Sweden
² GSI Helmholzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
³ Helmholtz Institute Mainz, D-55099 Mainz, Germany
⁴ Johannes Gutenberg-Universität Mainz, D-55099, Germany
⁵ Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
⁶ Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
⁷ University of Liverpool, Liverpool L69 7ZE, United Kingdom
⁸ Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Japan
⁹ University of Olso, NO-0315 Oslo, Norway
¹⁰ Paul Scherrer Institute and University of Bern, CH-5232 Villigen, Switzerland

^a e-mail: Ulrika.Forsberg@nuclear.lu.se

Published online: 20 March 2014

Abstract

Nuclides that are considered to be isotopes of element Z = 115 were produced in the reaction ⁴⁸Ca + ²⁴³Am at the GSI Helmholtzzentrum für Schwerionenforschung Darmstadt. The detector setup TASISpec was used. It was mounted behind the gas-filled separator TASCA. Thirty correlated α-decay chains were found, and the energies of the particles were determined with high precision. Two important spectroscopic aspects of the offline data analysis are discussed in detail: the handling of digitized preamplified signals from the silicon strip detectors, and the energy reconstruction of particles escaping to upstream detectors relying on pixel-by-pixel dead-layer thicknesses.

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