[ RadSafe ] erficaonal System of Units for Radiation Measurements in the US

[Sander Perle]

Franz is absolutely correct, SI units are everywhere and the US is one of the holdouts. It might even be the only hold out, that I don't know for sure.

Regards,

Sandy
Sent from my iPhone

> On Sep 21, 2016, at 13:50, Franz Schönhofer <franz.schoenhofer at chello.at> wrote:
> 
> Bob,.
> 
> Usually I am very patient and give people the excuse that they are uninformed, but your mail is unexcusable, shows a lack of knowledge and shows worst of all the widespread attitude of US-citizens and polititians that there is the USA in this world and beyond there simply nothing exists and therefore can be ignored. Therefore only a very short comment - I intend to write a longer, scientifically based comment on the absurd Curie vs Bq issue.
> 
> Your claim, that SI units are not international is absurd - have you ever been abroad, at an international conference? Obviously not. s Not even in the USA there are any conferences where speakers use Ci and the like. Have you ever read any international radiation protection journal - obviously not. (It is quite a few years if not decades ago that the "bible" of health physics, the US published HPJ refused to accept papers with "old" i.e. outdated units. Even the intermediately use of units like c-Gray was just another unit refused by HPJ.
> 
> From my own experience during and after the Chernobyl accident we had terrible troubles in comparing data submitted in nCi from the Sovjetunion, some eastern countries and even Japan to us in Bq. Not to talk about the problems to the public, which did not understand anything at all, but being fed with numbers both in nCi and Bq. The Greens used of course the higher ones, not giving the units anyway.
> 
> I cannot understand why you cannot see any advantage in a worldwide identical standard of physical units - what the IS attempted and has successfully introduced in more than 90 % of the world. The only disadvantage I could imagine is that the US (not "America" which is something different!!!!) would have to change or enforce some laws. Nevertheless appreciated that the "mileage" between Phoenix and Tucson on the motorway was given in kilometers, funny that the content of whisky bottles was given in IS units corresponding to traditionally ones
> 
> Finally I would encourage everyone to react to changes with an open mind, accepting any international treaty, any changes, they are usually really for the better.
> 
> 
> 
> 
> ---Ursprüngliche Nachricht----- From: The Wilsons
> Sent: Wednesday, September 21, 2016 7:26 PM
> To: The International Radiation Protection (Health Physics) Mailing List
> Subject: Re: [ RadSafe ] Adopting the International System of Units for Radiation Measurements in the US
> 
> It is not international, first of all, and there is really no advantage
> to the change. Lets not fix what isn't broken!
> Bob Wilson
> 
>> On 9/20/2016 11:10 AM, clayton bradt wrote:
>> Let's change the definition of the curie to 10^9 Bq. That way a curie is
>> still a convenient unit for every day work and the conversion between
>> curies and bequerels is simple. 1Ci = 1 GBq.
>> 
>> Clayton
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