Search found 11082 matches

by Richard Hull
Fri Jan 18, 2019 4:46 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction of Neutron Grade Fusor
Replies: 7
Views: 215

Re: Construction of Neutron Grade Fusor

All of the foregoing is good advice. Get a stable plasma for more than a minute above 25 kv and at a pressure of about 5-20mT and that is where you are going to see early fusion results. Burst of neutrons are more likely bursts of RF pulses into the detector. Again, what is your detection method. I ...
by Richard Hull
Thu Jan 17, 2019 2:48 pm
Forum: The Trading Post
Topic: Looking for: Controller Panel for Spellman-Bertan PMT power supply
Replies: 16
Views: 358

Re: Looking for: Controller Panel for Spellman-Bertan PMT power supply

We assume it is a negative output supply.

Richard Hull
by Richard Hull
Thu Jan 17, 2019 2:44 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Integrated Lab Measuring and Controlling (Labview, Labjack, ...)
Replies: 23
Views: 643

Re: Integrated Lab Measuring and Controlling (Labview, Labjack, ...)

Regarding HF sensing for synchronization for the Atmel IC. If you go native and don't use the IDE in the Arduino, I have no idea. I use the Int0 on the Arduino and am able to count and record up to about 24,000 pulse per minute with a simple three line interupt service routine one of thus lines dema...
by Richard Hull
Thu Jan 17, 2019 5:21 am
Forum: Images du Jour
Topic: Joe Gayo's Fusor - Neutron Detection Upgrade
Replies: 8
Views: 282

Re: Joe Gayo's Fusor - Neutron Detection Upgrade

A great example of having the "right stuff", in two cases.... In the first case both Joe's carefully working, taking a bit of direction, learning and adjusting. The second case was obtaining the right stuff in that matched pre-amp and 3He tube and windowing it to perfection. That last run report was...
by Richard Hull
Wed Jan 16, 2019 9:17 pm
Forum: Images du Jour
Topic: Joe Gayo's Fusor - Neutron Detection Upgrade
Replies: 8
Views: 282

Re: Joe Gayo's Fusor - Neutron Detection Upgrade

Joe, welcome to the neutron club. What a difference with the 3He tube. over the Russian tube. As you have a gauge and have used both tubes. You might go back to assist everyone with a future Russian tube and give a report on how to get it to function even marginally for neutron detection. Re-bias it...
by Richard Hull
Wed Jan 16, 2019 5:49 am
Forum: Images du Jour
Topic: Joe Gayo's Fusor
Replies: 20
Views: 527

Re: Joe Gayo's Fusor

I see you have an 3He tube no worry with x-rays, typically. Just bias it well and do a good job on electronic windowing.
Re-run tube in vs. tube out
Never wrap or solder anything to a valuable and expensive 3He tube!!

Richard Hull
by Richard Hull
Wed Jan 16, 2019 5:39 am
Forum: Images du Jour
Topic: Joe Gayo's Fusor - Neutron Detection Upgrade
Replies: 8
Views: 282

Re: Joe Gayo's Fusor - Neutron Detection Upgrade

Looks great with your new, far superior tube and windowing. Once again, tube in vs tube out data?
I think you are doing fusion. Let's see the comparison now.

Richard Hull
by Richard Hull
Wed Jan 16, 2019 5:34 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Integrated Lab Measuring and Controlling (Labview, Labjack, ...)
Replies: 23
Views: 643

Re: Integrated Lab Measuring and Controlling (Labview, Labjack, ...)

I view the Arduino as strictly a micro-controller. Odd how that is what such items are called and labeled in the real world. When I say controller I am talking more or less industrial level measurement and control. ie. sensing a voltage, pressure, temperature and rather immediately working a mechani...
by Richard Hull
Wed Jan 16, 2019 4:38 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Construction of Neutron Grade Fusor
Replies: 7
Views: 215

Re: Construction of Neutron Grade Fusor

Great effort. Keep up the good work. You will get there, I am sure.
Patience is not highly valued in the excitement of youthful bravado, but is part of what a good scientist and researcher needs to succeed.

Richard Hull
by Richard Hull
Tue Jan 15, 2019 5:44 am
Forum: New User Chat Area
Topic: Spherical Tokomak
Replies: 2
Views: 205

Re: Spherical Tokomak

You cannot build a "tokomak" or a Tokamak impossible, and as you requested, no reason given.

Richard Hull