jhun guarico
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Our source is iradium 192 what is the calculation or formula for the safe distance for unshielded source ?
The safe distance for an unshielded Iridium-192 (Ir-192) source in radiography can be calculated using the formula: Exposure rate = Gamma * Activity / distance². The specific gamma constant for Ir-192 is 4.8 R-cm²/hr mCi. This formula is applicable primarily for point sources or at distances far from distributed sources. It is advisable to consult health physicists who may have spreadsheets or tools for precise calculations.
PREREQUISITESRadiation safety officers, health physicists, radiographers, and anyone involved in the handling or application of Iridium-192 in radiography.