Search found 328 matches: +vacuum +safety

Searched query: +vacuum +safety

by ian_krase
Wed Oct 11, 2017 10:55 pm
Forum: Vacuum Technology (& FAQs)
Topic: Silicone tubing with hose barbs OK to pull low vacuum?
Replies: 16
Views: 338

Re: Silicone tubing with hose barbs OK to pull low vacuum?

... and high voltage (25-100 kV) at the same time. Please keep in mind that safety precautions for these very high voltages are much more stringent than ... of your setup and your parts? While NPT connections can be used in vacuum, they are generally considered undesirable because they are sometimes ...
by Dennis P Brown
Tue Oct 10, 2017 11:48 am
Forum: Ion Gun Design and Construction (& FAQs)
Topic: tabletop neutron generator
Replies: 15
Views: 2727

Re: tabletop neutron generator

... and see what this monster will give me. With a massive resistor (for safety) I will use this new VM for my accelerator; that is, if it can really ... concede it is time to disassemble the accelerator and retask the high vacuum system (not sure for what. Maybe even sell it. I have to say, I like ...
by Dennis P Brown
Thu Sep 28, 2017 10:19 am
Forum: Images du Jour
Topic: First Plasma - Daniel Fajardo
Replies: 3
Views: 309

Re: First Plasma - Daniel Fajardo

... "Very impressive." Making your own chamber and using such good vacuum systems is a very good start. Guess your next focus after increasing ... its own ground - not necessary, of course but I feel that is a good safety practice.) Of course, the standard star system with the fusor is always ...
by Finn Hammer
Mon Sep 18, 2017 3:27 pm
Forum: Images du Jour
Topic: Fusor progress, Finn Hammer
Replies: 9
Views: 440

Fusor progress, Finn Hammer

... surfaces, needless to say, I am anxious to see if they will hold a vacuum. The viewport diametre is 2 1/2" and the feedtrough is a 30kV rated ... is guarded inside the machine chassis, which is grounded, for maximum safety. This is the state of my fusor at this time, 18-09-2017 Cheers, Finn ...
by ian_krase
Sat Sep 16, 2017 10:42 pm
Forum: New User Chat Area
Topic: Other Fuel Cycles
Replies: 4
Views: 240

Re: Other Fuel Cycles

... cannot do fusion. You need a much higher voltage power supply. Better vacuum is nearly essential and for the sake of your safety you should use a metal shell. (You can do fusion in a glass fusor and some people have, ...
by Dennis P Brown
Thu Aug 24, 2017 10:52 am
Forum: Images du Jour
Topic: 2nd demo fusor run
Replies: 2
Views: 272

Re: 2nd demo fusor run

... needs to use a gasket if one expects to prevent massive leakage - vacuum grease alone isn't going to work very well. This may be causing the high pressure in the bell jar. Also, this is a safety issue since glass on metal can create dangerous stress points. Also, you ...
by Geoffrey Thomas
Mon Aug 21, 2017 5:23 pm
Forum: Images du Jour
Topic: Geoffrey Thomas First Plasma
Replies: 1
Views: 233

Geoffrey Thomas First Plasma

The chamber I used is an old bioreactor that I converted to hold vacuum. Unfortunately, the bioreactor had all kinds of ports which I plugged ... CO2 laser, but I don't want to use them on this small glass chamber for safety reasons. The pump is a Welch duoseal 1400 that I built from three separate ...
by ian_krase
Sun Aug 20, 2017 10:38 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Addressing HV safety excursions: Oh Yikes what do I do?
Replies: 11
Views: 654

Re: Addressing HV safety excursions: Oh Yikes what do I do?

I have a star ground with my high vacuum pump as the star point.

Sparks were coming off of the outside of my ion gauge controller, which was sitting on top of my HV power supply.
by ian_krase
Sun Aug 20, 2017 10:40 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Addressing HV safety excursions: Oh Yikes what do I do?
Replies: 11
Views: 654

Addressing HV safety excursions: Oh Yikes what do I do?

... Transformer, but am trying to get set up with a real HV power supply (one of the Spellman 50kV ones that went for cheap recently). I have my vacuum system, my ion gauge controller chassis, other controller chassis, and my power supply chassis all grounded together with substantial wire. I ...
by ian_krase
Wed Aug 02, 2017 8:30 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Dead Spellman PTV50N200 - where to start?
Replies: 7
Views: 342

Dead Spellman PTV50N200 - where to start?

... of op-amps so I could drive a meter. I had not yet attached it to my vacuum system due to lack of an adequate feedthrough and because to ensure safety (and to fit it on my bench) I needed some careful grounding, etc arrangement -- and ...