I'm just curious on how a near-perfect vacuum is created.
Do you know where I can buy a pump? And if not, how to make one?Pumps. Lots of pumps, of various kinds. Sorry to be so generic, but it's hard to be specific with a question that's so general. Maybe if you would tell us what kind of answer you are looking for we could craft an answer that suits you.
Wow... why are they so expensive? Is it because they are big devices?A turbo pump costs around... what... $10,000? An ion pump, without the controller, might be a bit cheaper. A cryopump costs around... $30,000 with the compressor. If you have that much money, can I be your friend?
And we haven't even gone into the type of vacuum chamber, valves, flanges, gauges, etc.
Well... I want a vacuum for a cathode ray experiment, and it's about a foot long and 3 inches in radius.For what kind of pumps you should use, you first have to identify how high vacuum you need (E-5, -6 or -9 etc..), and does it have the intake (how much). How big the manifold is also very important.
You should have mentioned this before.Well... I want a vacuum for a cathode ray experiment, and it's about a foot long and 3 inches in radius.