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[MW:14268] RE: 14262] RT Source Side/Film Side

By Materials & Welding

Hello Vino-Doha,

Most specs require the IQI on the source side, as this will represent the worst case scenario (i.e. longer object to film distance). If it is not possible to place IQI on source side, the IQI must have an “F” placed on it, to show the interpreter he is looking at an apparent sensitivity, not the true sensitivity. Quite difficult to judge from film which side IQI is, unless interpreter knows geometry of test piece, and knows source side not possible. In elliptical shot could notice slight “blowing” of IQI image due to increased OFD.

Regards

Graham Adams

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Vino Varghese
Sent: 14 May 2012 07:16 PM
To: materials-welding@googlegroups.com
Subject: [MW:14262] RT Source Side/Film Side

 

Dear Experts,

 

I would like to know which gives the best result - whether to place the IQI on source or film side?

and what is the reason...

Whether it have affect the result in interpretation?

If we forget to place the IQI as required, i mean on the film side, how to judge from the film?

 

Thanks & Regards

Vino-Doha

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