[ RadSafe ] Gamma measurements in planes

[John R Johnson]

Charles Ellars and other Radsafers

I don't think the radiation dose on aircraft is caused by DU. See "Radiation
Exposure of Civil Aircrew" (Rad. Prot. Dos. Vol. 48, No. 1 1993). The
increase in dose rate with altitude is typical of that reported in the
proceedings of that workshop.

John
 _________________
John R Johnson, Ph.D.
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President, IDIAS, Inc
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-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl]On
Behalf Of Ellars, Charles
Sent: December 18, 2006 7:24 AM
To: Olsson Mattias :MSO; radsafe at radlab.nl
Subject: RE: [ RadSafe ] Gamma measurements in planes


On a recent trip to FL from Boston, my RadEyeG measured 0.01 mr/hr on
the ground and 0.40 mr/hr at 35Kft during the day.  On the return flight
the next night it measured 0.01 on the ground and 0.30 mr/hr.  These are
completely unscientific since I probably changed locations relative to
DU ballast if any.  Also, I don't know what energies were involved and
therefore can't correlate the response of the RadEyeG.  Still it was
interesting.

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On
Behalf Of Olsson Mattias :MSO
Sent: Saturday, December 16, 2006 1:14 PM
To: radsafe at radlab.nl
Subject: [ RadSafe ] Gamma measurements in planes

There has been some writing about dose rate measurements in planes. I
seem to recall that DU can be used as ballast in planes. Even though not
exceptionally active, I suppose that could affect measurements somewhat
inside a plane!

Mattias Olsson
PhD, Nuclear chemistry
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