[ RadSafe ] Disposal via Decay in Storage

Baratta, Edmond J EBARATTA at ORA.FDA.GOV
Thu Nov 10 09:43:31 CST 2005

Technetium-99m has a six (6) hour half-life.  After sixty (60) hours it
should have decayed away.  This is radiopharmaceutical that is commonly
used.  That's why it is popular, otherwise we would have people walking
around who are 'hot'.

Edmond J. Baratta
Radiation Safety Officer
Tel. No. 781-729-5700, ext 728
FAX: 781-729-3593

This is my opinion and not those of my Agency. 

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Cary Renquist
Sent: Wednesday, November 09, 2005 6:02 PM
Subject: [ RadSafe ] Disposal via Decay in Storage

Quick question:

Is Tc-99m a candidate for disposal via

If so, what would be a acceptable method for
monitoring the decayed material prior to release?

Thanks for any info.

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