Re: [APML]: Hypering thread ...

["Joseph O'Neil" <joneil@multiboard.com>]

Philip Perkins wrote:
-snip-
> Hence the interest in seeing if the moisture can be removed in a 'pre-hyper'
> stage, so that hypering itself may be conducted in a more pure environment.
> There were strong indications from Experiment 2 that a substantial
> proportion of moisture can be removed in a in a pre-hyper stage, leading to
> a much smaller pressure rise during actual hypering.  Experiment 3 will go a
> stage further and I would expect to see minimal pressure increase during
> hypering.

        Before this thread started I always wondered if the water removed from the film 
emulsion was not floating around int eh forming gas during the hypering process.  As a 
result of this thread, I am trying a 2-stage hypering process with standard forming gas. 
 Stage one is hypering for 12 hours at 50C, then removal of th egas via vacumn pump, new 
gas introduced and continuation witht he hypering.

        I have no idea how well it will work, but I think it is worth a try.
        Thanks for pulling this thread together Phillip (and others)
        Joe

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