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Management of Commercially Generated Radioactive Waste - U.S. ...

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1.23<br />

TABLE 1.6.1. Summary <strong>of</strong> Radiation Effects from Potential Worst-Case<br />

Predisposal System Accidents<br />

Transportation<br />

(impact and fire)<br />

Spent Fuel 0.6(a)<br />

(4-year-old)<br />

HLW<br />

70-Year Dose to Maximum-Exposed Individual, rem<br />

Once-Through Cycle Reprocessing Cycle<br />

TRU <strong>Waste</strong> 3<br />

Storage 5 x 10- 2 8 x 10- 3<br />

Treatment and<br />

Packaging 3 x 10-5 2 x 10- 3<br />

10(b)<br />

(a) Shipment <strong>of</strong> 6-month-old spent fuel, which is unlikely, could result in<br />

a maximum individual dose <strong>of</strong> 130 rem.<br />

(b) The age <strong>of</strong> HLW at shipment in the scenario used in this Statement would be<br />

about 6-1/2 years old.<br />

most serious accidents in either fuel cycle. The estimated exposures in these accidents,<br />

however, are not large enough to cause observable clinical effects. Only in the case <strong>of</strong> an<br />

accident involving shipment <strong>of</strong> 6-month-old fuel was the dose (130 rem) determined to be<br />

sufficiently large that the individuals exposed would have a significant increase in prob-<br />

ability <strong>of</strong> developing cancer sometime during their life or <strong>of</strong> passing on a genetic defect.

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