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Open Access Publications from the University of California

First experiment at TASCA towards X-ray fingerprinting of element 115 decay chains

  • Author(s): Forsberg, U
  • Golubev, P
  • Sarmiento, LG
  • Jeppsson, J
  • Rudolph, D
  • Andersson, LL
  • Ackermann, D
  • Asai, M
  • Block, M
  • Eberhardt, K
  • Even, J
  • Düllmann, CE
  • Dvorak, J
  • Gates, JM
  • Gregorich, KE
  • Herzberg, RD
  • Heßberger, FP
  • Jäger, E
  • Khuyagbaatar, J
  • Kojouharov, I
  • Kratz, JV
  • Krier, J
  • Kurz, N
  • Lahiri, S
  • Lommel, B
  • Maiti, M
  • Merchán, E
  • Omtvedt, JP
  • Parr, E
  • Runke, J
  • Schaffner, H
  • Schädel, M
  • Yakushev, A
  • et al.

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To identify the atomic number of superheavy nuclei produced in 48Ca-induced fusion-evaporation reactions, an experiment aiming at measuring characteristic X-rays is being prepared at GSI, Darmstadt, Germany. The gas-filled separator TASCA will be employed, sending the residues towards the multi-coincidence detector setup TASISpec. Two ionoptical modes relying on differing magnetic polarities of the quadrupole magnets can be used at TASCA. New simulations and experimental tests of transmission and background suppression for these two focusing modes into TASISpec are presented.

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