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

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4.67<br />

Drums that have surface dose rates in the range 200 mR/hr to 1 R/hr require remote han-<br />

dling and are assumed here to be transported in a shielded van that meets Type B package<br />

standards or in a Super Tiger-type overpack that incorporates some shielding even though<br />

such packages are not currently available or designed. Drums that have surface dose rates<br />

in the range 1 to 10 R/hr are assumed here to be transported in casks having an equivalent<br />

shield thickness <strong>of</strong> 5 cm lead + 2 cm steel; a capacity <strong>of</strong> 14 drums per cask is assumed.<br />

Drums with surface dose rates above 10 R/hr are assumed to be transported in casks with an<br />

equivalent shield thickness <strong>of</strong> 10 cm lead + 2.5 cm steel; a capacity <strong>of</strong> six drums per cask<br />

is assumed for planning purposes.

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