¿ªÔÆÌåÓýNah, the storms were well north of me, like 500miles or so north, got a little windy, but not storm windy. Had hoped to get some rain I mean we¡¯re only 70mm short of 1m* for the year to date! LOL ? Those first emitters are what I would call getters, I went the look up the mean free path for Al in your vac range but I can¡¯t find my copy of Strong¡¯s procedures in Exp physics, to see at which point your forward facing emitters become true emitters, did I give you a copy when I over last year? I bet if you sweep the chamber out after a run you find a lot of dust, some might even be al coated gas molecules, might be fun to try and find some? ? I¡¯m in the process of reconfiguring my chamber to work as a horizontal system so I can use it in my head room challenged basement, hasn¡¯t been as easy a project as I had envisaged¡. ? Cheers, Thomas Janstrom. Little Gems.
? *annual rainfall here is 1370mm ? From: VacuumX@...
[mailto:VacuumX@...] On Behalf Of Aurigema, Andrew N.
(KSC-ASRC-491)[ASRC AEROSPACE]
Sent: Thursday, 25 March 2010 10:29 PM To: VacuumX@... Subject: RE: [VacuumX] record time ? ? Thomas, ? Hope the storms I saw on the world news were not over your place.? Looked bad for northern area. ? You saw the emitters for my system.? I do get coating coverage on the mirror surface ?with each group.? I most likely loose a lot of aluminum to the gas in the chamber but as the center cluster of emitters are last, they have the best vacuum to pass thru.? The XMS-1 indicates 3 to 5 nanometers per second build up so something must be getting thru.? More towards the end burns.? I actually have a set of emitters facing backwards that get fired off first.? Kind of a cheap sublimation booster pump.? ? Drew in soggy Florida ? From:
VacuumX@... [mailto:VacuumX@...] On Behalf Of Thomas
Janstrom ? ? Molten aluminum is a ¡°getter¡± so as it melts and volatilises it will actually drive the strength of the vacuum up, so your only really coating with the last couple of emitters. Sometimes more is better, and too much well it would seem to just about right! ? Cheers, Thomas Janstrom. Little Gems.
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