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23 Nov 2019
You must ship a gamma radiation source (radium-226) that produces a dose rate of 118 mR/hr at one meter from the shipping package. In order to meet the particular packaging requirements, the Transport Index (T.I.) must not exceed 3. What thickness of lead is needed to reduce the initial dose rate to the acceptable level? The half-value layer for the beam is 1.66 cm. (no buildup factor).
You must ship a gamma radiation source (radium-226) that produces a dose rate of 118 mR/hr at one meter from the shipping package. In order to meet the particular packaging requirements, the Transport Index (T.I.) must not exceed 3. What thickness of lead is needed to reduce the initial dose rate to the acceptable level? The half-value layer for the beam is 1.66 cm. (no buildup factor).
Reid WolffLv2
4 Jan 2019
