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FAQ - A neutron moderator for activation/detection

... rods with a 1/4 x 20 die.) I did this due to the proximity of the high voltage terminal to the top of the neutorn oven. (see images). One doesn't ... metallic object close to 45,000 volts. These insulating rods are a safety factor. You could design this to go under the fusor, leaving room ...
by Richard Hull
Mon May 09, 2016 6:28 am
 
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ - A neutron moderator for activation/detection
Replies: 3
Views: 1075

Hello

... things as a hobby. I was led here in hope to introduce myself to high voltage designs and safety. The idea to try and make myself a fuser also sounds tempting. ) Thanks for all your ...
by Sergey Filipkov
Tue Apr 12, 2016 10:21 pm
 
Forum: Please Introduce Yourself
Topic: Hello
Replies: 1
Views: 500

FAQ Issues

... Technology FAQs". The link takes you to the "High Voltage FAQs" and not FAQs about Vacuum Technology.(I was unable to ... 4 FAQ - View windows your fusor - safety first http://www.fusor.net/board/viewtopic.php?f=24&t=3162 http://www.xraycatalog.com/inventory/pc/viewCategories.asp ...
by Thomas Price
Mon Mar 21, 2016 7:12 pm
 
Forum: New User Chat Area
Topic: FAQ Issues
Replies: 24
Views: 2974

Re: Image of Voltage Multiplier for a NST

Well, added another stage to the voltage multiplier and the performance is falling - considering the transformer, not ... Hz.) The system still provides a good bit of power so I am very careful and use a safety grounding rod on all caps before working on it. Not sure if it is worth two ...
by Dennis P Brown
Sun Mar 20, 2016 5:15 pm
 
Forum: Images du Jour
Topic: Image of Voltage Multiplier for a NST
Replies: 6
Views: 1221

Re: Bell Jar Question

... PSI.) The issue for you, is that a demo fusor uses a very low current/voltage power supply so the glass walls are not subjected to the severe ion ... chance that a cataclysmic failure does occur. At least always wear good safety glasses to protect yourself if the vessel fails in any manner.
by Dennis P Brown
Tue Mar 08, 2016 2:34 pm
 
Forum: New User Chat Area
Topic: Bell Jar Question
Replies: 14
Views: 2263

Re: Greg Courville Neutron Club entry Feb 2016

... warn you that a little down the road (should you continue) with higher voltages and a need for lower pressure so as to limit current to something ... I suggest a nice pancake geiger somewhere in your setup for your own safety. When it starts counting fast even inside a box of 4" thick lead ...
by Doug Coulter
Mon Feb 22, 2016 12:10 am
 
Forum: Images du Jour
Topic: Greg Courville Neutron Club entry Feb 2016
Replies: 9
Views: 1842

Re: 40 KV Capacitor Charger as a power supply.

... is very high to be messing around with if you aren't familiar with high voltage. Serious engineering and safety issues (beyond those normally involved with high voltage ~10kV) come into play. Beyond ...
by prestonbarrows
Sat Feb 20, 2016 1:29 am
 
Forum: New User Chat Area
Topic: 40 KV Capacitor Charger as a power supply.
Replies: 8
Views: 1048

Re: Demo Fusor HV Input (rectifier)

Make sure your transformer is rated for the high voltage you plan to produce. For safety reasons, using a current limited Neon sign transformer is a better option for a demo fusor. ...
by Jim Stead
Sat Jan 30, 2016 5:37 pm
 
Forum: New User Chat Area
Topic: Demo Fusor HV Input (rectifier)
Replies: 14
Views: 1671

Re: Thoughts on this pump

... current, the NST will turn itself off. The circuit is there for fire safety, unlike a GFCI, which follows a different standard and behaves differently. ... demo fusor. Listen to Dennis, and fusor power FAQs, about the nameplate voltage and current not being available at the same time. I really ...
by Rich Feldman
Tue Jan 19, 2016 3:52 pm
 
Forum: New User Chat Area
Topic: Thoughts on this pump
Replies: 8
Views: 1132

Re: Operating a Spellman Power Supply

Hi Kuba, With the HV connector removed, and no voltage being generated under a no-load condition, this is a strong indication ... and not safe. I would guess you have no experience or training in the proper safety precautions of hazardous voltages. Without some reassurance that you have ...
by Cliff S
Tue Jan 05, 2016 2:40 pm
 
Forum: New User Chat Area
Topic: Operating a Spellman Power Supply
Replies: 15
Views: 2210
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