[ RadSafe ] Gamma measurements in planes

Tosh Ushino rad_chp at yahoo.com
Mon Dec 18 19:44:34 CST 2006

Ladies and Gents,

I haven't been following RADSAFE for quite a while, and please excuse me if someone else already responded with this.

There are couple of web pages that show solar weather. The second one below has a plot of 3-days of 5-minute solar x-ray flux values measured on the SEC primary and secondary GOES satellites.


Perhaps solar weather will help explain the anomaly observed in the airplane.

I wish you all Happy Holidays.

Tosh Ushino

----- Original Message ----
From: "Ellars, Charles" <Charles.Ellars at qsa-global.com>
To: Olsson Mattias :MSO <mso at forsmark.vattenfall.se>; radsafe at radlab.nl
Sent: Monday, December 18, 2006 7:24:09 AM
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

-----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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