[ RadSafe ] Cardiolite Fate

[Dan W McCarn]

Good Question!

Because of the energy response of the Ludlum Model 19, the actual exposure
rate is about 1/7 of the measured rate.

Dan ii
 
--
Dan W McCarn, Geologist
108 Sherwood Drive
Los Alamos, NM 87544-3425
+1-505-310-3922 (Mobile – New Mexico)
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com
 
-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Alston, Chris
Sent: Friday, May 21, 2010 11:12
To: radsafe at agni.phys.iit.edu
Subject: Re: [ RadSafe ] Cardiolite Fate

P.S.  That exposure rate sounds quite high to me (5 mR/h at 4 meters).  That
would imply 80 mR/h at one meter!!  One would have to give a normal-sized
patient ~500 mCi I-131 to get a number like that.  Are you sure of the
calibration?  You might also want to double-check the energy response curve.

Cheers
cja



Dear Group: 
Yesterday I received both Tl-201 & Tc-99m as a intravenous cocktail during a

cardiac stress test.  The dose was 3 mCi Tl-201 and 20 mCi "Cardiolite" 
Tc-99m for imaging.  By the time I got home, I was quite radioactive, with 
my Ludlum Model 19 measuring 5000 uR/Hr at a distance of 4 meters. 
According to the information that I received, the test amounts to a 3.45 REM

total effective dose. 
Should I be avoiding my girlfriend for the next week or two?  She works at 
Los Alamos and I don't want to "contaminate" her. 

  

The good news is that no problems were found! 

  

Comments? 

  

Dan ii 

  

-- 
Dan W McCarn, Geologist 
108 Sherwood Drive 
Los Alamos, NM 87544-3425 
+1-505-310-3922 (Mobile - New Mexico) 
 <mailto:HotGreenChile at gmail.com>  <mailto:HotGreenChile at gmail.com> 
HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com 

  

  

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