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Re: today's best value for W in air
The Canadian National Research Council's Institute for National Measurement
Standards uses 33.97 J/C.
Brian R. Gaulke, CHP
brian_gaulke@hc-sc.gc.ca
Chris Alston <alstonc@odrge.odr.georgetown.edu> on 99/10/07 12:58:36
Please respond to radsafe@romulus.ehs.uiuc.edu
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cc: (bcc: Brian Gaulke)
Subject: today's best value for W in air
>It's Ignorant Question Time! All you therapy physicists know this:
>
>What's today's best-accepted value for W (the mean energy expended in air
>per ion pair formed)?
>
>It's changed several times during my career, and being a diagnostic type,
>I'm not as up-to-date as I should be.
>
>If you don't want to clog the MEDPHYS ether, you can email me directly.
>
>Thanks.
>
>Doug
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