[ RadSafe ] Re: I131 patient during intercontinental flight

edmond0033 at comcast.net edmond0033 at comcast.net
Thu Feb 12 09:43:29 CST 2009

A few years ago when I was the RSO for the USFDA, I had to send an employee home two days as his readings 

were to high for him to be seated near a pregnant employee.  (The employee didn't wish to have her pregnancy revealed.)  He only had Tc-99m for a stress test.  It was the afternoon and next day. 

Ed Baratta 

edmond0033 at comcast.net 

----- Original Message ----- 
From: "Mauro Campoleoni" <trentino at iol.it> 
To: radsafe at radlab.nl 
Sent: Thursday, February 12, 2009 4:21:49 AM GMT -05:00 US/Canada Eastern 
Subject: [ RadSafe ] Re: I131 patient during intercontinental flight 

Clayton, Moshe, and others, 

my very very rough calculation indicates 
that 7 mCi of  I131 (26 MBq) 
would expose a neighbour passenger (at 50 cm) 
to a dose rate around 8 microSv per hour of flight. 
This, assuming the worst conditions and considering 
a dose rate from a I131 "point source" of  7.6*10-5 mSv/h per MBq 
and not considering the excretion. 

Mauro Campoleoni 
Unità Operativa di Fisica Sanitaria 
Fondazione "Ospedale Maggiore Policlinico Mangiagalli e Regina Elena" 
Via Pace, 9 20122 - Milano - ITALY 
tel. 02-5503.3007 
fax 02-5503.5100 

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