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Calculate the radiation intensity at 0.35m from an unshielded 7.5GBq source of Au (=6.2x10-6Rm2/MBq), Calculate the shielding thickness required to reduce the radiation intensity of

Calculate the radiation intensity at 0.35m from an unshielded 7.5GBq source of Au (=6.2x10-6Rm2/MBq), Calculate the shielding thickness required to reduce the radiation intensity of the source to its safe level (10mR/week) and =2.3cm-1. Assume that the employee must work at 1m from the source for 10hrs each week??

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