[ RadSafe ] SI Purists

Tue Mar 29 11:40:59 CDT 2011

Richard et al

I agree. I almost converted to SI in 1988 when I moved to the Hanford site 
in the US. If I remember correctly, the DOE said it would not move to SI 
because of the "dangers" involved. I lost what I knew and am still trying to 
"relearn" it since moving back to Canada in 1999.

John
***************
John R Johnson, PhD
CEO, IDIAS, Inc.
4535 West 9th Ave
Vancouver, B. C.
V6R 2E2, Canada
idias at interchange.ubc.ca

----- Original Message ----- 
From: "Richard Smart" <r.smart at unsw.edu.au>
To: "The International Radiation Protection (Health Physics) Mailing List" 
<radsafe at health.phys.iit.edu>
Sent: Tuesday, March 29, 2011 9:20 AM
Subject: Re: [ RadSafe ] SI Purists

> Australia was one of the first countries to adopt the SI units for 
> radiation. I think it was in 1977. Although I was originally trained in 
> curies, rads and rems, I have for many years automatically thought in 
> becquerels, grays and sieverts.
>
> Now it is quite an effort to convert back the other way.
>
> I agree with Mike - bite the bullet and start using SI units exclusively. 
> It will soon come naturally.
>
> Regards
>
> Richard Smart PhD
> Chief Physicist & Radiation Safety Officer
> Conjoint Assoc Prof, UNSW
> Dept of Nuclear Medicine
> St George Hospital
> Kogarah
> NSW 2217
> Tel:02-91133129
> Fax:02-91133991
> r.smart at unsw.edu.au
> ________________________________________
> From: radsafe-bounces at health.phys.iit.edu 
> [radsafe-bounces at health.phys.iit.edu] On Behalf Of Perle, Sandy 
> [SPerle at mirion.com]
> Sent: Wednesday, 30 March 2011 2:29 AM
> To: The International Radiation Protection (Health Physics) Mailing  List
> Subject: Re: [ RadSafe ] SI Purists
>
> When I was in the UAE all last week, the conversion from C to F never was 
> an issue. I knew that at 33 degrees C, wearing a suit, it was HOT! When 
> they said the temperature increases to 48 degrees C and humidity increases 
> during the summer, I knew that it was like being in "hell", VERY HOT! I 
> know that I won't be wearing a suit during meetings at that time! If I 
> needed to, I could have done the conversion, if this were a critical 
> requirement. Same thing when it comes to other SI units.
>
> Start educating students today. They are the future that will be using the 
> SI units.
>
> Regards,
>
> Sandy
>
> -----------------------------------
> Sander C. Perle
> President
> Mirion Technologies
> Dosimetry Services Division
> 2652 McGaw Avenue
> Irvine, CA 92614
>
> +1 (949) 296-2306 (Office)
> +1 (949) 296-1130 (Fax)
>
> Mirion Technologies: http://www.mirion.com/
>
>
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu 
> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Stabin, Michael
> Sent: Tuesday, March 29, 2011 7:59 AM
> To: radsafe at agni.phys.iit.edu
> Subject: Re: [ RadSafe ] SI Purists
>
>
> To those who say "we just can't do it", I reiterate my 2 liter argument - 
> of course you can learn to think in different units, it just takes a short 
> time. One of the harder ones is F to C; being married to a Brasilian lady 
> now, it took a few weeks, but I was thinking pretty easily in degrees C 
> with just a little practice and relating to actual outdoor temperatures. 
> Then we have to communicate with more than workers directly in our 
> facilities, we are part of a worldwide scientific community, who now has 
> to stop and think when we talk in antediluvian units and they are used to 
> thinking in Bq now. It's so much easier, everything starts with 1 (J/kg, 
> dis/sec, etc.), then add prefixes. Since I started cooking how I wish I 
> had recipes and measuring devices in SI, I have to remember so many 
> multipliers to cut or add to recipes. "cups in a pint...carry the 
> three....multiply by 16...oh, I burned the garlic bread again..."
>
>
> Mike
>
> Michael G. Stabin, PhD, CHP
> Associate Professor of Radiology and Radiological Sciences Department of 
> Radiology and Radiological Sciences Vanderbilt University
> 1161 21st Avenue South
> Nashville, TN 37232-2675
> Phone (615) 343-4628
> Fax   (615) 322-3764
> e-mail     michael.g.stabin at vanderbilt.edu internet 
> www.doseinfo-radar.com
>
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