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SPES -Thin target calculations : isotope production and power deposition (ENEA-INFN Legnaro)

SPES -Thin target calculations : isotope production and power deposition (ENEA-INFN Legnaro). Carlo Petrovich (ENEA, Bologna) INFN – Legnaro, 24 th January 2006. Content: Description of the target configuration Some evaluations for accuracy of the MCNPX code Simulations (by MCNPX) for:

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SPES -Thin target calculations : isotope production and power deposition (ENEA-INFN Legnaro)

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  1. SPES -Thin target calculations:isotope production andpower deposition(ENEA-INFN Legnaro) Carlo Petrovich (ENEA, Bologna) INFN – Legnaro, 24th January 2006

  2. Content: • Description of the target configuration • Some evaluations for accuracy of the MCNPX code • Simulations (by MCNPX) for: • power deposition • fission rates • fragmentation distribution • activation (FISPACT code)

  3. Stopping power & Fission cross-section for protons on UCx For lower power deposition in uranium keeping high fission rates: High energy p+ in the UCx and low energy p+ towards a dump.

  4. Comparison MCNPX vs. experim. for 238U proton fiss. Discrepancies for the fission cross-section lie in the range 10%-30%

  5. Comparison MCNPX vs. experim. for 40 MeV

  6. Comparison MCNPX vs. experim. for 40 MeV

  7. Carbon Window UCx disks Carbon Dump proton 1-step thin target configuration ~580 Watt / UCx disk 7.6·1012 fissions/s  1.5 ·1013 atoms/s

  8. Data to be confirmed: radius? densities?

  9. Mass distribution (in-target)MCNPX-ORNL (Oak-Ridge National Laboratory) model

  10. Mass distribution (in-target)MCNPX-ORNL (Oak-Ridge National Laboratory) model 132Sn produced:~109 s-1

  11. Induced target ACTIVITY during a full irradiation time of 1 month (warning: 30% of the atoms/sec not included in the code. No tritium) after 1 hour:~8·1012 Bq (= 2·1014 Bq/kg) after 1 month: ~1·1013 Bq. (= 4·1014Bq/kg), ~1016H3 atoms, ~2·10-4 gr.of Pu

  12. ACTIVITY of the UCx discs during cooling(after irradiation of 1 month)

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