1 / 26

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

noreen
Download Presentation

last Results for 238 U

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related