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Table 4.

Summary of alpha irradiation experiments by bitumen type, specific activity, absorbed dose and dose rate.

References Alpha source Bitumen Specific activity Dose rate Absorbed dose
(mCi/g) (Gy/h) (MGy)
[35] 238PuO2 and Distilled bitumen 64 and 0.4 Not specifiedb Not specified
[26] 241Am Mexphalt R85/40 0.80 90 0.56
[36] Cm2O3 and PuO2 Ebano 15 et 4 44,5 c 1.0–24
Mexphalt R85/40

b The value reported in the literature is known as dosage rate, although the unit is Ci/g, which is a measure of specific activity.

c Calculated from the literature value 3.9 107−1.

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