1 / 9

New Detector at the Tandem Laboratory of INPP for astrophysics studies Axiotis Michail

New Detector at the Tandem Laboratory of INPP for astrophysics studies Axiotis Michail. Outline. Heavy elements nucleosynthesis p-nuclei abundances Measurement techniques 4 π γ summing method Experimental results Our new detector. Heavy elements nucleosynthesis. β -. s-nuclei.

tawny
Télécharger la présentation

New Detector at the Tandem Laboratory of INPP for astrophysics studies Axiotis Michail

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. New Detector at the Tandem Laboratory of INPP for astrophysics studies AxiotisMichail

  2. Outline • Heavy elements nucleosynthesis • p-nuclei abundances • Measurement techniques • 4πγ summing method • Experimental results • Our new detector

  3. Heavy elements nucleosynthesis β- s-nuclei (n,γ) r-nuclei s/r-nuclei p unstable p Z p p r-process 1 sec 1020 n/cm3 s-process 100 yr 108n/cm3 N

  4. p-nuclei abundances C. Iliadis, Nuclear Physics of Stars (2008) Differences between observed and calculated by Hauser-Fesbach abundances of p-nuclei in the solar system Need to measure cross-sections to improve the “ingredients” of HF calculations

  5. Measurement techniques 4πγ-summing method γ angular distribution measurements

  6. pos. a pos. c pos. b 4πγ summing method Spyrou et al. Phys. Rev. C 76,015802 (2007)

  7. Experimental results DTL-Bochum: 12 inch x12 inch NaI crystal Demokritos-Bochum Demokritos-Bochum Demokritos-Bochum

  8. Our new detector 14 inch x 14 inch NaI crystal segmented in two – Up/Down

  9. Thank you for your attention

More Related