[ RadSafe ] Ag-108m Release Criteria

[Philip Simpson]

Ed and others,

Ag-108m has three associated gammas at , 434, 614, and 723 keV.  Their yield is almost identical at about 90%.  The half-life given by LUND/LBNL is 418 yrs.  Unfortunately, I am all to familiar with this isotope,  It, along with Co-60 is our primary remaining contaminant. We have had  "default" DCGL's calculated for Ag-108m by a consultant but must consider the information proprietary at this point.

By the way,  The LUND/LBNL site is a great source for radio-isotope data. I certainly hope it is maintained after Dr. Firestone's retirement.

Phil Simpson
University of Michigan 
Ford Nuclear Reactor


On Jun 6, 2011, at 10:15 PM, Edmond Baratta wrote:

> Ag-108m is in the"old" Radiological Health Handbook Department of Health Education and Welfare, Public Health Service (DHEW/PHS) , 1970.  Its production is by Ag-107 (n, gamma).  Half-life is ~ 5 years.  It's EC is 90% and IT is 10%.  It has no gammas and that may be why it is not in that Library.
> 
> Ed Baratta
> 
> edmond0033 at comcast.net
> 
> -----Original Message----- From: Dustin G. Miller
> Sent: Monday, June 06, 2011 10:31 AM
> To: 'The International Radiation Protection (Health Physics) Mailing List'
> Subject: [ RadSafe ] Ag-108m Release Criteria
> 
> Anyone out there familiar enough with the DandD code to know why Ag-108m is
> not included in the radionuclide library?  Am I missing something?
> 
> 
> 
> Dustin G. Miller
> 
> Project Manager
> 
> RSO/Health Physicist
> 
> 
> 
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