A4-4-2 Reference impact

Calculations for all the noble gases give a dose at the fence after three days of 5-120 mSv (about 10 

Explorative evaluation of the radiological consequences of a mechanical impact on a surface storage facility for category 2 waste 

It is assumed that the disposal structure is similar to the French one at L Aube or to the Spanish one in El Cabril. The waste is assumed to comply with the ANPA Technical Guide No. 26 (ANPA, 1985) and is, therefore, conditioned in a concrete matrix with compression strength of at least 500 000 kg m .  

The integrated dose due to ground shine with absorption in the soil, corresponding to a ground initial concentration of 1 Bq cm of caesium-137 (a contribution by other nuclides exists but is not evaluated here)  

It is assumed that the reference impact produces, on clear ground, a conieal crater having an angle of 90° and a depth of 4 m. Moreover, it is assumed that the cause of the impact is undefined, possibly to be identified with a plane crash, a launched projectile or a blast from an internal or external explosive charge. 

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