[ RadSafe ] Activity versus dose/exposure

Thompson, Dewey L DThompson3 at ameren.com
Wed Jun 22 12:53:00 CDT 2011

John, you might also be able to get away with the old standby "6CEN" if you don't have a book or internet handy.

6 x the Curie Content x the photon energy in MEV x the abundance = R/hr @ 1 foot.  Divide by distance squared corrects the estimate for distance. 


: : : : : : : : : : : : : : : : : : : : : : : : : 
Staff HP
Radiation Protection Department
T 314.225.1061
F 573.676.4484
E DThompson3 at ameren.com

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of John Gerald Center, Jr
Sent: Wednesday, June 22, 2011 11:42 AM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] Activity versus dose/exposure

Thank you all,

This is one of the many reasons I signed up for RadSafe.  Quick help when my brain shuts down and interesting debate on topics of radiation safety.

Still glad to be a part of this list,


----- Original Message -----
> From: "Carol Marcus" <csmarcus at ucla.edu>
> To: "The International Radiation Protection (Health Physics) Mailing List" <radsafe at agni.phys.iit.edu>, "The
> International Radiation Protection (Health Physics) Mailing List" <radsafe at agni.phys.iit.edu>
> Sent: Wednesday, June 22, 2011 12:22:54 PM
> Subject: Re: [ RadSafe ] Activity versus dose/exposure
> Dear John:
> It's called the "Specific Gamma-ray Dose Constant" and you can find a
> table of them on pp 6-10 to 6-14 in the third edition (1998) of
> Schleien, Slaback, and Birky's "Handbook of Health Physics and
> Radiological Health".
> Carol S. Marcus, Ph.D., M.D.
> Depts. of Radiation Oncology and of Radiological Sciences
> David Geffen School of Medicine at UCLA
John G. Center, Jr.
Radiation Safety Officer
3922 Wood Hall
Western Michigan University
1903 W. Michigan Ave.
Kalamazoo, MI  49008-5410

Office (269) 387-5933
Cell  (269) 744-0996
E-mail: john.center at wmich.edu
Fax  (269) 387-5888
You are currently subscribed to the RadSafe mailing list

Before posting a message to RadSafe be sure to have read and understood the RadSafe rules. These can be found at: http://health.phys.iit.edu/radsaferules.html

For information on how to subscribe or unsubscribe and other settings visit: http://health.phys.iit.edu

The information contained in this message may be privileged and/or confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. Note that any views or opinions presented in this message are solely those of the author and do not necessarily represent those of Ameren. All e-mails are subject to monitoring and archival. Finally, the recipient should check this message and any attachments for the presence of viruses. Ameren accepts no liability for any damage caused by any virus transmitted by this e-mail. If you have received this in error, please notify the sender immediately by replying to the message and deleting the material from any computer. Ameren Corporation

More information about the RadSafe mailing list