Non-fuel assembly components: 10 CFR 61.55 classification for waste disposal

Fuel Assembly Reference Information for SNF Radiation Source Term Calculations

“…CE NFH includes CEAs and NSAs. Similar information is provided for irradiated BWR control blades, which are considered Greater-Than-Class-C radioactive waste [65].…”

“…The irradiation history of a spent RCCA, discharged after 12 cycles and 102,767 h of service from the WE PWR Point Beach 1 power reactor, is provided in the PNL-10103 report [65]. Table 50 provides the cycle burnup values of the host assemblies.…”

“…The irradiation history of a GE control blade discharged from the Duane Arnold power reactor is provided in the PNL-10103 report [65]. This blade was used during 10 operation cycles at two reactor core locations.…”

“…The insertion data presented in Table 56 were extracted from the graphs available in the PNL-10103 report and might be imprecise. The neutron exposure during full insertion is extremely low because the reactor was either coasting down or at the zero-power level [65]. 60 Co measurements on samples taken at various axial locations along the blade were ~ 2,000 g/g for the handle and tip and an approximately uniform 1,200 g/g for the sheath.…”

“…BPRAs are typically removed after one irradiation cycle. The burnup reported in the PNL-10103 report [65] for a spent BPRA discharged from the WE PWR Point Beach 1 power reactor is ~16,500 MWd/MTU. However, the burnup of a fuel assembly in modern PWR cores is much higher (e.g., 28.8 GWd/MTU in a 24-month cycle [69]).…”