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Technical Discussions
siva
siva
19:01 Mar-14-2010
RT maximum thickness

What is the maximum thickness limit suggest to do radiography with Ir-192?.

 
 Reply 
 
Dent
Consultant, NDE Manager NDELevel III/3
NDT Consultant, Canada, Joined Nov 1998, 252

Dent

Consultant, NDE Manager NDELevel III/3
NDT Consultant,
Canada,
Joined Nov 1998
252
21:02 Mar-14-2010
Re: RT maximum thickness
In Reply to siva at 19:01 Mar-14-2010 (Opening).

I personally have seen Ir 192 used in China on 4 1/4" of steel. 2-2T was achieved. It was a very long exposure (Co 60 was not available) and serious attention must be paid to back scatter. 4 mev Linear Accelerator is now being used at that facility.

 
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tj
tj
03:09 Apr-22-2010
Re: RT maximum thickness
In Reply to siva at 19:01 Mar-14-2010 (Opening).

I think practical should replace maximum here as nobody has ever hung around long enough to find out.

 
 Reply 
 

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