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RE: [MW:4614] exposure time calculation for CS & SS

By Materials & Welding
you may refer the attached file for some guidance

Exposure time (minutes) = FF*SFD2*2t/hvt*60
                                              SS (Ci)*RHM
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of agmendoza@cantv.net
Sent: Friday, March 26, 2010 4:30 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:4611] exposure time calculation for CS & SS

Hi Mahendran,
What is the tipe of the chart/table? how to use the table depends on the model or manufacturer
the data normally used are:
Film speed factor in mR/h.
Density required
Distance source-film
Thickness
Source Strength

Kind regards.
Gustavo Mendoza
QA/QC Inspector

mar 25, 2010 11:03:33 AM, materials-welding@googlegroups.com wrote:

===========================================


Hi all,        Can any one help me to send the chart/table for the time calculations of RT using Ir192. I would like to know the time taken depends on the wall thickness & curies.  Regards,P.Mahendran 



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