Re: UV heater
Hi Atilla, Usually we use linear quartz lamps T3 series which are produced for power from 500 to 2000 W. A lot of companies produce them; you can find them at www.infraredheaters.com/quartz3.html, for
By
Vladimir Chutko
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#3476
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Re: UV heater
Hi, Heating will do perfectly well, but the whole point of using UV lamps is to /avoid/ heating the system. UV of a suitable wavelength actually breaks down the water molecules and releases them from
By
lrwweb
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#3475
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DP temperature critical?
I have an old Veeco vacuum system with a ≈3" diff. pump (air cooled) using 100cc of DC-704 (per factory spec). I've torn down the entire system, cleaned it (I had to clean and rebuild the DP, as
By
Gomez <gomez@...>
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#3474
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Re: UV heater
Attila, Are you quite certain you don't mean "IR" instead of "UV"? It sounds like what you want is heat. Your pumping system removes teh water vapor from the chamber volume, the usual water problem
By
Gomez <gomez@...>
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#3473
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Re: UV heater
Atilla, Hi. Don't know what brand they are, but our surplus tank came with long, thin, quartz heaters. They really heat the tank up fast and are really bright. You can see the electrical connections
By
Bill Fain
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#3472
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UV heater
Hi All, Does know anybody, what kind of UV lamp should use in a vacuum chamber, for heating. Eliminating the water vapour? ThX! Attila The Hun
By
Attila <schneyolo@...>
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#3471
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Re: 6" mirror coating
Hello Zafar, I am not supplying these mirrors to anyone. Actually I am making these for my own use. The current largest telescope in the Pakistan has the mirror's diameter 18".And my ambition is to
By
asad
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#3470
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Re: 6" mirror coating
Dear Asad Where u r supplying these mirrors Dr.Zafar Iqbal To: VacuumX@... From: asadscientist@... Date: Fri, 3 Sep 2010 19:59:41 -0700 Subject: Re: [VacuumX] 6" mirror coating Hello
By
Zafar Iqbal
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#3469
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Re: 6" mirror coating
Hello Zafar, I am a student of FSc pre engineering and my residence is in Okara. I've benn making the telescope mirrors for 2 years. I am very glad to hear that you can solve my problem. Thank u very
By
asad
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#3468
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Re: 6" mirror coating
Dear Asad I am rebuilding the e-beam evaporation coating facility at National center of Physics Islamabad. will be ready in next six months. keep in touch for your work. Will do the necessary help.
By
Zafar Iqbal
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#3467
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Re: Coating System For Sale
What is the price of the coating chamber that is for sale? Asad
By
asad
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#3466
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6" mirror coating
Hi guys, I've just joined this group and i'm from Pakistan. Recently I finished a 6" f/11 mirror for telescope. Now it is ready for an aluminium coat. In my country, a coating chamber is about
By
asad
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#3465
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Re: Rotary actuators
Ken, You da man. The XMS 1 does indeed have switched 120 ( two of them actually ) so I will get creative and figure out something. I polished out the mirror that I buggered up and now it is ready to
By
Aurigema, Andrew N. (KSC-ASRC-474)[ASRC AEROSPACE] <andrew.n.aurigema@...>
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#3464
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Rotary actuators
Drew... You are one lucky guy! During one of my rare lucid moments I found 4 of the rotary actuators I mentioned yesterday. These would be very easily modified by the addition of a vane (or flag) to
By
Ken <atm_ken_hunter@...>
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#3463
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Re: Wanted - Deposition Crystal holder
NOPE... Don't have any more of those SCR Controller thingies. Got that one off eBay for a song just to try it out and was impressed with what it could do. If you search eBay , tyou should find several
By
Ken <atm_ken_hunter@...>
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#3462
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Re: Film Thickness measurement by optcal transmission
It is easy and tricky at the same time... 1. It works only for transparent in the given light wavelength range film materials. 2. The intensity of reflected or transmitted light varies with film
By
Vladimir Chutko
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#3461
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Film Thickness measurement by optcal transmission
Dear ALL Hoe measure the thin film thickness by refelction and transmitted light using monochoromator. I need basic information for this methode
By
Zafar Iqbal
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#3460
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Re: Wanted - Deposition Crystal holder
I don't think so. It "sublimates" directly into a gas from a solid. So any part of the little black crystal that is touching the 2000 degree box is suppsed to be vaporized directly into gas. The data
By
Aurigema, Andrew N. (KSC-ASRC-474)[ASRC AEROSPACE] <andrew.n.aurigema@...>
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#3459
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Coating System For Sale
Hi, Everybody! I bought an old CVC coater a few years ago, intending to fix it up and start coating telescope mirrors. But I got too busy making the mirrors, so this coater project has languished. Now
By
gwaitemirrors
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#3458
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Re: E-Gun Evaporator
Hello Alfredo Mnay Thanks for the efforts I am having an old chinese (1990) made EB deposition system. I am rebuliding it from scratach. Every thing is alredady fitted in the vacuum chamber. The
By
Zafar Iqbal
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#3457
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