One kilogram of dry air at STP conditions is exposed to 1.0 R of X-rays. One roentgen is defi ned by
One kilogram of dry air at STP conditions is exposed to 1.0 R of X-rays. One roentgen is defi ned by Equation 32.1. An equivalent defi nition can be based on the fact that an exposure of one roentgen deposits 8.3 × 10−3 J of energy per kilogram of dry air. Using the two defi nitions and assuming that all ions produced are singly charged, determine the average energy (in eV) needed to produce one ion in air. Apr 25 2022 08:13 PM
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