A 300mm diameter pipe, 5mm wall thickness is to be radiographed using the double wall single image technique. The source to be used is Iridium. Which of the following statements is true?
a) It should not be done because the thickness is below that recommended
b) It should be better to use a cobalt 60 source in this instance
c) There is no problem with the technique
d) Only the double wall, double image technique should be used with Iridium
a) It should not be done because the thickness is below that recommended
b) It should be better to use a cobalt 60 source in this instance
c) There is no problem with the technique
d) Only the double wall, double image technique should be used with Iridium