correction factors

["Whybark, Paul D" <PDWhybar@MAIL.BHI-ERC.COM>]

 DOE requires that we report survey results in units of dpm/100cm squared.

> Using a 100 cm squared probe this is easy.  How does one correctly report

in

> units of dpm/100cm squared using a pancake probe which is approximately 20

> cm-2 surface area?  We are currently being instructed to use a correction

> factor of 5 (over and above the efficency correction factyor to convert

cpm

> to dpm) to report our findings in units of dpm/100cm-squared.  This seems

to

> me to be mulitplying our results rather than reporting what was actually

> detected.  Is there any scientific basis justifying this type of correctin

> factor?  Is this a geomtetry correction factor?  I find this analagous to

> using a magnifying glass to see something and then reporting what I

actually

> saw times the magnification factor of the lens.



************************************************************************

You are currently subscribed to the Radsafe mailing list. To unsubscribe,

send an e-mail to Majordomo@list.vanderbilt.edu  Put the text "unsubscribe

radsafe" (no quote marks) in the body of the e-mail, with no subject line.

You can view the Radsafe archives at http://www.vanderbilt.edu/radsafe/