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Beta and particle decay spectroscopy at the Super FRS

Beta and particle decay spectroscopy at the Super FRS. Zenon Janas. Nuclear Spectroscopy Division Warsaw University. Branches of the Super FRS. High-Energy Branch. H. Weick, M. Winkler. Regions of interest.  heavy proton emitters  100 Sn region

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Beta and particle decay spectroscopy at the Super FRS

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  1. Beta and particle decay spectroscopy at the Super FRS Zenon Janas Nuclear Spectroscopy Division Warsaw University

  2. Branches of the Super FRS High-Energy Branch H. Weick, M. Winkler

  3. Regions of interest  heavy proton emitters  100Sn region  r- process nuclei 197Fr 1atom/s 100Sn 2atoms/s 132Sn 108atoms/s 78Ni 8atoms/s K.-H. Schmidt

  4. Heavy proton emitters a-emitters predicted p-emitters 91 89 87 207Pa 209Pa 201Ac 203Ac 197Fr Experimental knowledge

  5. Identified ions PA Detection of fast p and a decays implantation  range focusing position correlation  high granularity time correlation  dedicated electronics DSSD

  6. Studies of r- process nuclei  masses (Qb, Sn)  b - decay halflives b - strength distribution  bn emission probabilities

  7. High - resolution bn and bg-ray measurements n-det. Identified ions g-det. • - particle tracking segmented b-detectors

  8. Transport tape b – detectors NaI(Tl) 1414 PMT  TAS energy Total Absorption Spectrometer ph= 70% at 1 MeV

  9. 98Ag TAS CLU QEC Total absorption vs. high-resolution measurements 6  Cluster detectors  = 19% at 1.3 MeV

  10. Total Absorption Spectroscopy at Super FRS Transport tape extraction system b – dets. NaI(Tl) 1414 PMT  Super FRS gas cell TAS energy

  11. Possible contribution of the Warsaw group • setup for ms - decay studies - dedicated preamplifiers - digital signal processing • setupfor TotalAbs.Spectroscopymeasurements •ion catcher (EU RTD Network) - gas flow simulations

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