Re: CNN article

[John Jacobus <crispy_bird@YAHOO.COM>]

I believe that the Concorde jetliners had pressurized

ion chambers in the crew's cabin to provide real-time

exposure results.  If a solar event occurred, the crew

were supposed to reduce their altitude, which I

believe only occurred once.  I have yet to find any

indication if the exposure data was every recorded.



 --- JGinniver@AOL.COM wrote:

> 

> In a message dated 7/7/04 1:04:47 am,

> rujohnso@nmsu.edu writes:

> 

> 

> > I'm curious now what the actual doses are to

> full-time international 

> > airline crews. Does anyone know, per flight or per

> annum? I've been asked this 

> > question before in the radiation safety class I

> teach, but I don't know. If 

> > european agencies monitor crew doses, then they

> must fly with TLD or similar 

> > badges.

> > 

> 

> There is quite a good summary by the UK National

> Radiological Protection 

> Board at the following URL

> 

>

http://www.nrpb.org/publications/bulletin/no4/editorial.htm

> 

> It as my understanding that doses to aircrew could

> not be accurately 

> estimated using simple passive detectors such as

> TLDs.   Instead special monitoring 

> equipment has been developed by the NRPB which is

> carried on the aircraft to 

> provide dosimetric information and that by using

> different routes/flight 

> paths/altitudes it is possible to estimate the doses

> to aircrew.

> 

> Regards,

>      Julian

> 





=====

+++++++++++++++++++

"To be persuasive, we must be believable,

To be believable, we must be credible,

To be credible, we must be truthful."

Edward R. Murrow



-- John

John Jacobus, MS

Certified Health Physicist

e-mail:  crispy_bird@yahoo.com





		

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