07:21 Nov-11-2008 S.V.Swamy Engineering, - Material Testing Inspection & Quality Control Retired from Nuclear Fuel Complex , India, Joined Feb 2001 785
Re: X-RAY Theoretically, you can calculate the equivalent thickness of each (in terms of steel) and then set the parameters for that thickness of steel. With a method called bracketing (a little higher and a little under exposure around the theoretical value), you should hit the correct exposure parameter in just a couple of trials.
Swamy NDT Guru
----------- Start Original Message ----------- : sir, : How X-Ray exposure parameters can be freezed if two dissimilar materials (say Copper and Inconel )joined together with ebw other than trial and error basis ? ------------ End Original Message ------------