3 rd annual inpp meeting 17/6/2013 m. axiotis institute of nuclear & particle physics ncsr...
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![Page 1: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/1.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
New Detector at the Tandem Laboratory of INPP for astrophysics studies
Axiotis Michail
![Page 2: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/2.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
Outline
• Heavy elements nucleosynthesis• p-nuclei abundances• Measurement techniques• 4π γ summing method• Experimental results• Our new detector
![Page 3: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/3.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
s-process100 yr
108 n/cm3
(n,γ)β-
p p
p
p
N
Z
s-nuclei
r-nuclei
s/r-nuclei
unstable
r-process
1 se
c
102
0 n/cm3
Heavy elements nucleosynthesis
![Page 4: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/4.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
C. Iliadis, Nuclear Physics of Stars (2008)
p-nuclei abundances
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
![Page 5: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/5.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
γ angular distribution measurements
4π γ-summing method
Measurement techniques
![Page 6: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/6.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
Spyrou et al. Phys. Rev. C 76,015802 (2007)
pos. apos. b pos. c
MR 48.2
4π γ summing method
![Page 7: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/7.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
DTL-Bochum: 12 inch x12 inch NaI crystal
Demokritos-Bochum
Demokritos-Bochum
Demokritos-Bochum
Experimental results
![Page 8: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/8.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
14 inch x 14 inch NaI crystal segmented in two – Up/Down
Our new detector
![Page 9: 3 rd Annual INPP Meeting 17/6/2013 M. Axiotis Institute of Nuclear & Particle Physics NCSR “Demokritos” New Detector at the Tandem Laboratory of INPP for](https://reader038.vdocuments.us/reader038/viewer/2022103122/56649d095503460f949db5fc/html5/thumbnails/9.jpg)
3rd Annual INPP Meeting17/6/2013
M. AxiotisInstitute of Nuclear & Particle PhysicsNCSR “Demokritos”
Thank you for your attention