Review Article
Compilation of Existing Neutron Screen Technology
Table 6
HFIR irradiation parameters for proposed tripin concept [
23].
| Parameter | Value |
| Fast (>0.1 MeV) neutron flux in irradiation volume | 1.2 · 1015 n/cm2·sec | (a) Annual3 fast (>0.1 MeV) neutron fluence at peak irradiation position | 1.6 · 1022 n/cm2 | (b) Burnup/year | 5.9% | (c) dpa | 19.5 | Fuel burnup-to-clad dpa ratio at peak irradiation position | 0.3 atoms % per dpa | Fast (>0.1 MeV) to thermal (here <0.625 eV) flux ratio | 400 | He-to-dpa ratio in iron at peak irradiation position | 0.2 appm He per dpa | Linear heat rate (variable, depending upon design of Eu2O3 shield) | 300 W/cm |
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Annual estimates are conservatively based on seven cycles per year.
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