Fusor Forums

Richard
I am a bit confused about the image of your HV feedthrough.
The CF flange (a Varian one) seems to lack the sharp edge to seal against the copper washer.
Please comment.
Roberto

Hi Richard, a useful technique to removing tungsten deposits is melting a bit of sodium nitrite over the surface to be cleaned. It melts at low temperature and reacts with the tungsten. Then you wash thoroughly the window with distilled water.

Hi Patrick
Thanks for sharing.
Not useful for my project but a friend of mine, in struggle with an electrostatic accelerator will enjoy your info.

Paul
Donation appears gone to Tanglewook Ventures.
Is it OK?

Tim and Dan

But degassing until emptied of gasses, right?
Or do you think that there is a "push-pull" action, loading and outgassing, rytmically?

Hi Jim

Please, comment on your experiences with titanium and degassing.

Agustin Why do you start your long pursuit trying to use a wrong road? Mechanical pump oil has several properties, not only oriented to get a good vacuum but also to protect the steel parts inside the pump. Were are you based? Surely some provider of consumables for vacuum systems, as mass spectrome...

Understood!
Thanks

Hi Scott

Beside my earlier question, I have another one.
Einzel lens designs almost always have a gap of 0.1 D between lenses.
Why you gone further, enlarging the space between lenses? It is almost 0.5 D (being D the lens diameter)

Richard
That is refreshing news!
Great return.
As an old vacuumist, I plan to sum my modest knowledge.