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Author
ndtmetals



Joined: 26 May 2008
Posts: 2
PostPosted: Mon May 26, 2008 4:40 am    Post subject: film exposure time calculation Reply with quote

We are having a external partner to do some radiographies for us and I am searching for a way to check if he is using the correct exposure time. The thickness is 0.5, 2, 5 for Al, cu and ss and Dustance= 540cm A=10,Kv=100 and the film is D4.

I have found the formula for time exposure but I dont really understand how to calculate Q. Is there any relevant programme or website calculator I can use?

The only one I have found is this one http://www.ndt-ed.org/EducationResources/CommunityCollege/Radiography/TechCalibrations/exposurecalculations.htm but still seems not to be working.
Any ideas?
thanks in advance for your help.

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