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

[Franz Schönhofer]

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outdated units.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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