| Gents, Correct, IQI(s) is (are) required to be placed on source side with given RT set up conditions to verify detectability and then sensitivity of near surface indications, as they are impaired due to increased OFD. Alternatively, indications within the test object have a better chance of detectability / sensitivity due to decreased OFD. Since it is not always possible to place IQI on source side, it will be appropriate if technique shots are prepared with IQI on film side & then on source side to compare results for accountability. Best regards, Shashank Vagal |
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