Greetings!

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Samuel Berman
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Joined: Tue Nov 14, 2017 12:55 am
Real name: Samuel Berman
Location: San Jose, California
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Re: Greetings!

Post by Samuel Berman »

How about for just discussing my pump/gauge and sharing details about my setup?
Samuel Berman
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Dennis P Brown
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Joined: Sun May 20, 2012 10:46 am
Real name: Dennis Brown

Re: Greetings!

Post by Dennis P Brown »

If you want to post a picture of the gauge and/or pump that you now have (unless it is a fully assembled, operating vacuum system - that could go under the "Images du Jour") or want some operational information on your pump and gauge system, or have a question on how best to test the pump those questions could would be appropriate for the 'Chat' section.

If you turn out to have an electronic question about the gauge controller or issues with the calibration, that would go in the vacuum system - ditto on, say, changing the pump oil.

If in doubt, just try the closest you feel is correct - not really a big concern unless it is an extremely elementary question addressed in the FAQ under the section appropriate for that device/knowledge area.
Joep Stuyfzand
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Real name: Joep Stuyfzand

Re: Greetings!

Post by Joep Stuyfzand »

Dennis P Brown wrote: Tue Nov 14, 2017 5:15 am Hello, and welcome. Both a single stage pump and a 'glass jar' are only useful for a plasma demo; a fusor requires a steel chamber or steel vacuum connector like a four-way cross ( 2.75 inch or larger.)
Is there any specific reason that you can not achieve D-D fusion in a glass jar fusor?
Or is it because a glass jar does not protect against x-rays so a glass jar is practically not useful for real fusion?
MatthewL
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Joined: Sun Mar 05, 2017 7:13 pm
Real name: Matthew Lallinger
Location: Houston, Tx

Re: Greetings!

Post by MatthewL »

Joep,

One reason not to use a glass chamber is because an increased voltage above demo voltages will produce more powerful ion beams that can heat and weaken the glass causing an implosion. The glass will also allow most of the x-rays through as well. The FAQ's do answer this question in more depth so make sure to check there too.

Regards,
-Matthew
Joep Stuyfzand
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Joined: Thu Nov 16, 2017 5:40 pm
Real name: Joep Stuyfzand

Re: Greetings!

Post by Joep Stuyfzand »

MatthewL wrote: Sun Nov 19, 2017 8:06 pm Joep,

One reason not to use a glass chamber is because an increased voltage above demo voltages will produce more powerful ion beams that can heat and weaken the glass causing an implosion. The glass will also allow most of the x-rays through as well. The FAQ's do answer this question in more depth so make sure to check there too.

Regards,
-Matthew
That cleared it up.
Thank you, Matthew.
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Dennis P Brown
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Real name: Dennis Brown

Re: Greetings!

Post by Dennis P Brown »

This discussion really does need to be moved to the chat section since this section is meant to be used for Introductions only. Also, please read FAQ's a bit more on fusor design before posting specific questions. Saves time.
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