--------
In message <cadhrwpers3kf4-fg9x2kwakvqrnuf7c9r0vnacvm5aemhzm...@mail.gmail.com>
, Dana Whitlow writes:

>I can only answer one of your questions with any confidence, but I'd
>suspect that the chamber walls are cooled a fair bit in addition to
>being highly reflective.

Why would you need to cool them any more than you need to cool them
in a cesium standard ?

I wonder if you can replenish the Rb supply ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
p...@freebsd.org         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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