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Re: Tl-201

To: "Kurt R. Geber" <Kurt.R.Geber@grc.nasa.gov>, radsafe-digest@list.vanderbilt.edu
Subject: Re: Tl-201
From: Mike Lantz <mlantz33@CYBERTRAILS.COM>
Date: Wed, 31 Jul 2002 20:07:32 -0700
References: <5.1.0.14.2.20020801154413.0234b3b0@popserve.grc.nasa.gov>
Reply-To: Mike Lantz <mlantz33@CYBERTRAILS.COM>
Sender: owner-radsafe@list.vanderbilt.edu

The culprit past 30 days will be the initially small contaminant of Tl-202. After the Tl-201 has decayed significantly, the percentage of Tl-202 will be high.

Mike Lantz, CHP

"Kurt R. Geber" wrote:

Does anybody have info on the biological half-live of Tl-201 used in stress tests. Does the inability to pass a portal monitor for 30 days seem excessive?

Kurt R. Geber
NASA Project Radiation Safety Officer

References:
- Tl-201
  - From: "Kurt R. Geber" <Kurt.R.Geber@grc.nasa.gov>

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