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| Program name | Package id | Status | Status date |
|---|---|---|---|
| IFPE/NFIR-1 | NEA-1758/01 | Arrived | 21-MAR-2006 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-1758/01 | Many Computers |
The NFIR-1programme was designed to investigate factors likely to affect the fission gas release behaviour of fuel rods operating under normal commercial conditions.
The factors which were investigated were:
the effect of fuel/rod design parameters, e.g., wet versus dry route pellet manufacture, fuel-clad gap size and rod pressurization,
the effect of power history i.e., IN/OUT fuel management strategy,
the effect of burn-up extension.
This was accomplished by an extensive PIE campain on 6 fuel rods irradiated to 40-64 MWd/kg under different prescribed conditions in the BR3 PWR . The examination involved non destructive mensuration and destructive examination using optical, SEM, TEM and EPMA techniques. The dataset is unique in demonstrating the effect of these variables on fuel performance.
Keywords: clad creepdown, fission gas release, fission product distribution, pressurized water reactor.
