BABY-1L-run-2

Reminder for 1L-run-1

• A-325 rate: 2.13E8 n/s / 2 (from 100 mL run 7)
• 12 hours irradiation
• github.com/LIBRA-project/BABY-1L-run-1/blob/v0.4/analysis/tritium/tritium_model.ipynb

New samples

• same mass transport rates as BABY-1L-run-1
   
• P-383 neutron rate from foil 100mL run 7: 4.95e8 n/s / 2
   
• 24h irradiation
  
   
• ⚠️ we use an OpenMC model for the A-325!
   
• github.com/LIBRA-project/BABY-1L-run-2/blob/new-sample/analysis/tritium/tritium_model.ipynb

1L-run-2

1. Higher neutron rate, slower release

• neutron rate +30%
• transport rate -40%

3. Freezing incident

• base rate is 50% lower than run-1
• after the freeze, improvement +50%

Preliminary conclusions

• We need to wait for:
  • the foil analysis
  • the final tritium release
• Uncertainties:
  • TBR (eg. lead bricks vs no lead bricks, DT source model...)
  • LSC counts error bars
  • Foil counts
• Live with these uncertainties and run the model parametrically