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last Results for 238 U

last Results for 238 U. Eric Pellereau. Yields Charges Isotonics Isotopics Masses Prompts neutrons. Charges yields. Charges yields. = MeV ( here ) = 10 % U MeV (Lohengrin) 24 %. !. decreases when E* increases. Yields Charges Isotonics Isotopics

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last Results for 238 U

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  1. last Results for 238U Eric Pellereau 02/10/2014

  2. Yields Charges Isotonics Isotopics Masses Promptsneutrons

  3. Charges yields

  4. Charges yields • = • MeV (here) = 10 % • U MeV (Lohengrin) 24 % ! decreaseswhen E* increases

  5. Yields Charges Isotonics Isotopics Masses Promptsneutrons

  6. Isotonicsyields : N = A - Z N = 82

  7. Neutron even-odd effect Scission Prompt neutrons emission

  8. Isotonicsyields : N = A - Z • = • MeV (here) 5 % • U MeV (Lohengrin) % seems constant with E*

  9. Neutron Local even-odd effect

  10. Neutron Local even-odd effect • Interpretation : arrises from the last step of neutron evaporation • Given by the fragments Sn • [ M. V Ricciardi et al. Nucl. Phys. A 733 (2004) 299-318 ]

  11. Yields Charges Isotonics Isotopics Masses Promptsneutrons

  12. Isotopicsyields Number of counts

  13. Isotopicsyields Number of counts Peaks integrals yields

  14. isotopicsyields (heavy) Y (A) % A

  15. Neutron excess (charge polarisation) Neutron excess UCD Neutron deficit

  16. Isotopicsyields ; zoom Z = 49-50 As a function of N here Y (N) % Y (N) %

  17. fission modes (BROSA) TKE (total kineticenergy) Severalpathtowards scission Edef Standard 1 Standard 2 SEP Super-Long Picture N. Dubray

  18. isotopicsyields ; Z = 49-50 As a function of N here Y (N) % SI SL Y (N) %

  19. Isotopicsyields; Z = 49-50 As a function of N here Y (N) % SL SL SL : high E* avalaible Edeformationdecreases time Eintrinsicincreases scission

  20. Yields Charges Isotonics Isotopics Masses Promptsneutrons

  21. masses yields U 238 : E * = 14 MeV U 239 : E * = 20 MeV

  22. Yields Charges Isotonics Isotopics Masses Promptsneutrons

  23. VS Z = 238 – (A1 + A2) SL mode : E* increases thanks to Edef SL

  24. VS Z = 238 – (A1 + A2) SL mode : E* increases thanks to Edef SL STI,STII modes E* reduced

  25. VS Z (ZOOM) Q value increases if charges are even More E* avalaible  increases

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