Re: Powernet: ILLINOIS RADIOGRAPHER RECEIVED 15 SIEVERT (1,500REM) TO HIS LO...

[Ted de Castro <tdc@XRAYTED.COM>]

Add to that list various "test stands" on research equipment that have

high voltage and vacuum and "just happen to emit x-rays" - like that

recent ORNL ECR incident.



I've been chatting with Handloser too - let's all gang up on him and

maybe he will produce something.



Los Alamos had a nice design - but its not made anymore - may be John

can resurrect that?



Actually I liked the old EN pen style.  That is a design that could

benefit from new electronics - but it seems the cost issue there is GM

tubes.  For simple and robust and not sensitive to other EM disturbance

- GM's have lots of advantages.  And NO they DO NOT paralyze in high

fields!  That was a problem with old circuitry that isn't done anymore -

especially in new battery thrifty designs.



Dave Derenzo wrote:

> 

> Last year at the HPS meeting I was asking many vendors the same

> question.  They said that their marketing was driven primarily by the

> nuclear power industry, who wanted more bells and whistles.  I used and

> liked the old Eberline Rad Tads, but they haven't been made in a long

> time.  I suggested to John Handloser of HPI that there was a market out

> there for a chirper, which would be very useful for Cardiology and

> Angiography physicians.  At the time I didn't think of

> radiographers.  Other users might include well-loggers, people using

> gauging devices, irradiators, teletherapy units, linacs, etc.  Maybe if

> John were to get a few more people suggesting that such a device would be

> useful, we would see an economical well designed chirper hit the market.

> 

> At 10:34 PM 5/28/02, Ted de Castro wrote:

> >I agree - have you tried to buy a just plain chirper lately???

> >Everything is an EPD and much more expensive (and complicated) than a

> >simple chirper needs to be.

> >

> >They have gotten carried away - they don't need to be exposure or energy

> >linear - they just need to be sensitive, robust, non-paralyzable and

> >cheap.  The cheaper they are - the more they will be bought - and used.

> >

> >Funny how the impression is that the general public is overly frightened

> >of radiation - but from the accident reports it would seem that

> >radiographers just don't care!  Hard to align those two notions.

> >

> >AndrewsJP@AOL.COM wrote:

> > >

> > > Why Oh Why don't radiographers use chirpers?  These little devices

> > > PREVENT this kind of accident.

> > >

> > > John Andrews

> > > Knoxville, Tennessee

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