Search found 1394 matches: safety

Searched query: +safety

by Dennis P Brown
Tue Dec 12, 2017 10:54 pm
Forum: New User Chat Area
Topic: X radiation exposition
Replies: 11
Views: 158

Re: X radiation exposition

... regardless of the x-rays. Use only HV proper cables rated to at least 50 kV and be certain any fusor is properly grounded - read the FAQ's on the safety of high voltage for fusors (NEVER allow your transformer to float!) I use shielded/grounded high voltage cables to be certain my system is safe. ...
by Dennis P Brown
Tue Dec 12, 2017 5:20 pm
Forum: New User Chat Area
Topic: X radiation exposition
Replies: 11
Views: 158

Re: X radiation exposition

... and not reading the FAQ's on the hazards of radiation nor assuming that one can just use high voltage systems without any research relative to safety. Remember this: YOU AND ONLY YOU ALONE ARE RESPONSIBLE FOR YOUR SAFETY AND DETERMINING ALL DANGERS! That said, it is not likely that for one ...
by Arnau Vivet
Tue Dec 12, 2017 4:49 pm
Forum: New User Chat Area
Topic: X radiation exposition
Replies: 11
Views: 158

X radiation exposition

Hello, I’ve been doing some tests with my fusor earlier and I’m now worried about my own safety, I run this fusor on about 50 KV 10 miliamps in a vacuum about 1000 microns for about one minute at aproximatelly one meter of it, is there any formula I can use to determine ...
by Richard Hull
Sat Dec 09, 2017 7:16 am
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ - X-rays, X-rays, X-rays....A tutorial
Replies: 0
Views: 89

FAQ - X-rays, X-rays, X-rays....A tutorial

... it is true, no shielding is needed in most all situations regarding fusor operation. Use the inverse-square law as your first line of defense and safety regarding any source of radiation. It is worth 3,000 lbs of lead shielding any day. Now to the nitty-gritty of the x-ray tutorial Demo fusor ...
by Dennis P Brown
Wed Dec 06, 2017 10:31 pm
Forum: Images du Jour
Topic: A nice Surplus item to make a Neutron Detector Power Supply
Replies: 6
Views: 292

A nice Surplus item to make a Neutron Detector Power Supply

... but again, will save it. I will, this weekend, test the HV x-former system (after I add a bleed resistor to that cap! Always try and think about safety - another important point for people new to HV systems; one careless lapse in judgement can be fatal so try and think ahead and do the extra ...
by Silviu Tamasdan
Fri Nov 17, 2017 12:41 pm
Forum: Please Introduce Yourself
Topic: Hello from Holland!
Replies: 2
Views: 122

Re: Hello from Holland!

... and more importantly acquire a lot of practical experience in several key domains, notably high vacuum techniques, high voltage generation and safety, radiation detection and safety. And the parts/devices you will need don't come cheap, and sometimes are hard to find. If your school will help ...
by Silviu Tamasdan
Thu Nov 16, 2017 12:08 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Scintillation Tube/Counter
Replies: 33
Views: 975

Re: Neutron Scintillation Tube/Counter

... It's all good. This BC412 detector of mine was never intended for neutrons or for fine discrimination of gamma spectra. I bought it for background/safety checks. I hope that it may also be useful in future prospecting trips (it's just at the edge of what I would call too bulky for a portable detector).
by Rich Feldman
Wed Nov 15, 2017 3:40 pm
Forum: Please Introduce Yourself
Topic: Greetings!
Replies: 15
Views: 476

Re: Greetings!

... drives an analog meter movement. Nothing super-sensitive about the meter -- it just has a coil wound for low voltage instead of low current. (Gas safety valves for pilot lights are held open by a solenoid using voltage from a single TC junction -- tens of mV.)
by Dennis P Brown
Sun Nov 12, 2017 4:51 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor chamber and electrode cooling
Replies: 0
Views: 142

Fusor chamber and electrode cooling

... cool to the touch (of course, all HV is turned off, before I ever touch the electrode - it is fully insulated but I never trust depending on that safety measure alone!) After turning off the HV I investigated various regions of the fusor. I noticed parts well away from my cooling coil system that ...
by Silviu Tamasdan
Fri Nov 10, 2017 3:03 pm
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Criticize my HV supply design
Replies: 12
Views: 413

Criticize my HV supply design

... and calculate for max temperature of 100C. From previous failures I have acquired the habit of over-engineering things. This not only gives me a safety factor, but also allows me to upgrade stuff in place if I need higher specs later. Some speculations later in this post regarding upgrades. So ...