[ RadSafe ] Radiation Doses to Luggage

[John Jacobus]

There are generally two types of scanners.  The one
for carry-on baggage is similar to a diagnostic fluoro
x-ray unit, which scans or takes a image.  Usually the
exposure rates are low, and the color correlates with
the density of the object. 

For checked baggage, i.e., going into the cargo hold,
the units are like CT units and generate large doses. 
 These units will fog photographic film.

--- "Flanigan, Floyd" <Floyd.Flanigan at nmcco.com>
wrote:
> Sounds like their x-ray equipment is very different
> from ours. Ours takes a 'snap-shot' of the contents
> as they pass through the array and is only in the
> 'on' position for a split second. The picture it
> puts out is very detailed, in color and shows
> stratification of object throughout it's layers. I
> guess the dose is varried depending on the
> equipment/model etc.
> 
> Floyd W.Flanigan B.S.Nuc.H.P.
> 
> -----Original Message-----
> From: radsafe-bounces at radlab.nl
> [mailto:radsafe-bounces at radlab.nl]On
> Behalf Of Sandy Perle
> Sent: Tuesday, March 08, 2005 7:20 PM
> To: elsa.nimmo at varian.com; radsafe at radlab.nl
> Subject: Re: [ RadSafe ] Radiation Doses to Luggage
> 
> 
> On 8 Mar 2005 at 9:23, Elsa Nimmo wrote:
> 
> > Does anyone know of recent studies reporting the
> range of radiation
> > doses that a piece of checked luggage might
> receive per one pass
> > through security screening at an airport?  It
> would be great to find a
> > study that included info worldwide, but leads on
> more limited studies
> > are welcome too.
> 
> Checked bags X-ray units for the most part put out
> high dose. 
> Dosimeters irradiated in these units approaches
> between 150 and 300 
> mrem in many instances. Kodak has an alert about
> outting your film in 
> checked bags.
> 
> These units are not typical check units and these
> are different than 
> he units used to check carry-on bags, which have a
> lower output.
> 
> -------------------------------------
> Sandy Perle
> Senior Vice President, Technical Operations
> Global Dosimetry Solutions, Inc.
> 2652 McGaw Avenue
> Irvine, CA 92614 
> 
> Tel: (949) 296-2306 / (888) 437-1714  Extension 2306
> Fax:(949) 296-1902 
> 
> E-Mail: sperle at dosimetry.com
> E-Mail: sandyfl at earthlink.net 
> 
> Global Dosimetry Website: http://www.dosimetry.com/ 
> Personal Website: http://sandy-travels.com/ 
> 
> _______________________________________________
> You are currently subscribed to the radsafe mailing
> list
> radsafe at radlab.nl
> 
> For information on how to subscribe/unsubscribe and
> other settings visit: 
> http://radlab.nl/cgi-bin/mailman/listinfo/radsafe
> _______________________________________________
> You are currently subscribed to the radsafe mailing
> list
> radsafe at radlab.nl
> 
> For information on how to subscribe/unsubscribe and
> other settings visit:
> http://radlab.nl/cgi-bin/mailman/listinfo/radsafe
> 

+++++++++++++++++++
"A positive attitude may not solve all your problems, but it will annoy
enough people to make it worth the effort." Herm Albright

-- John
John Jacobus, MS
Certified Health Physicist
e-mail:  crispy_bird at yahoo.com


	
		
__________________________________ 
Celebrate Yahoo!'s 10th Birthday! 
Yahoo! Netrospective: 100 Moments of the Web 
http://birthday.yahoo.com/netrospective/