Xref: utzoo rec.radio.amateur.misc:2107 sci.electronics:19688
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From: esj@harvee.UUCP (Eric S Johansson)
Newsgroups: rec.radio.amateur.misc,sci.electronics
Subject: Re: How to measure/detect X-ray (cheap)?
Message-ID: <4212786@harvee.UUCP>
Date: 26 Apr 91 21:49:40 GMT
References: <1991Apr23.172122.13076@Informatik.TU-Muenchen.DE> <4902@kitty.UUCP>
Organization: gators 'r us
Lines: 30
X-Version: Rodney's UUCP modules 05/09/90 V1.15

In article <4902@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:
> 	My best suggestion, if you are really concerned, is to obtain a
> photographic film badge dosimeter, fasten it to the outside of the device
> in question, run the device for several hours, and then have the film
> badge developed and evaluated with a densitometer.  There are outside
> service organizations who will provide such a service, but you will probably
> not like the cost.  The best approach would be to find a friend who works
> for a hospital radiology or nuclear medicine department and has some "pull"
> to do a little favor... :-)
> 

I would not trust film badge dosimeters.  My wife works for a vet and
they use film badge dosimeters in their x-ray room.  One of her co-workers
decieded to "test" the dosimeter by giving it a full dose of x-rays
i.e the badge was the x-ray target.  The report on the badge gave no
indication that the badge had been exposed.  Now, I don't know what
the detection threshold is or if the badge readers can tell the
difference between types of exposure but I don't have much faith
in dosimeters anymore.  ( honey, the light is keeping me awake. 
please put your head under ther covers... :-)

--- eric
--
...
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