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Prompt-delayed γ -ray spectroscopy with AGATA, EXOGAM and VAMOS++

  • Author(s): Kim, YH
  • Lemasson, A
  • Rejmund, M
  • Navin, A
  • Biswas, S
  • Michelagnoli, C
  • Stefan, I
  • Banik, R
  • Bednarczyk, P
  • Bhattacharya, S
  • Bhattacharyya, S
  • Clément, E
  • Crawford, HL
  • De France, G
  • Fallon, P
  • Goupil, J
  • Jacquot, B
  • Li, HJ
  • Ljungvall, J
  • Macchiavelli, AO
  • Maj, A
  • Ménager, L
  • Morel, V
  • Palit, R
  • Pérez-Vidal, RM
  • Ropert, J
  • Schmitt, C
  • et al.
Abstract

© 2017, SIF, Springer-Verlag GmbH Germany. A new experimental setup to measure prompt-delayed γ-ray coincidences from isotopically identified fission fragments, over a wide time range of 100ns-200μ s, is presented. The fission fragments were isotopically identified, on an event-by-event basis, using the VAMOS++ large acceptance spectrometer. The prompt γ rays emitted at the target position and corresponding delayed γ rays emitted at the focal plane of the spectrometer were detected using, respectively, thirty two crystals of the AGATA γ-ray tracking array and seven EXOGAM HPGe Clover detectors. Fission fragments produced in fusion and transfer-induced fission reactions, using a 238U beam at an energy of 6.2 MeV/u impinging on a 9Be target, were used to characterize and qualify the performance of the detection system.

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