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by Richard Hull
Wed Jul 28, 2021 7:13 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fun with the scope or what happens at the breakdown?
Replies: 5
Views: 184

Re: Fun with the scope or what happens at the breakdown?

Have you looked at Doug's spectrum splatter yet? Any peaks?

Richard Hull
by Richard Hull
Wed Jul 28, 2021 3:00 am
Forum: Interesting Links
Topic: A revolutionary Cheap, high energy/high cycle battery for Energy Storage
Replies: 4
Views: 110

Re: A revolutionary Cheap, high energy/high cycle battery for Energy Storage

Read the non-expert exposition and Dennis is correct. Like fusion "real soon now"...or not. One thing for sure, green energy will never be more than a earth-raping environmental disaster delusion in any form, without huge energy storage systems that will 100% percent rival current energy costs. Even...
by Richard Hull
Wed Jul 28, 2021 2:41 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: So close... what gives?
Replies: 9
Views: 158

Re: So close... what gives?

Dennis is correct. What do you know of your detectors? Details? A photo would be nice. A plus ultra detection setup like mine with a huge 3He tube and equally huge moderator very near the fusor will give easy detection by speaker clicks alone at 15kv, and thousands of counts per minute at 30kv. Joe ...
by Richard Hull
Tue Jul 27, 2021 7:20 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fun with the scope or what happens at the breakdown?
Replies: 5
Views: 184

Re: Fun with the scope or what happens at the breakdown?

Great! that mimes what Frank and I found with the AM radio he suggested in a 2005 HEAS event in my lab. The noise is there with some sort of resonant output among the horrid splatter in the AM band again, due to any number of highly variable conditions a peak at 1.4mhz is for Joe's fusor only in thi...
by Richard Hull
Tue Jul 27, 2021 4:42 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fun with the scope or what happens at the breakdown?
Replies: 5
Views: 184

Re: Fun with the scope or what happens at the breakdown?

Interesting report. We know or have known that the fusor is a source of RF energy. "Noise tubes" of old were special gas filled tubes. Some had radium deposits in them as well. Placing an AM radio near the operating fusor will show a vast noise band. The capacitance of a fusor is on the order of a f...
by Richard Hull
Sun Jul 25, 2021 6:41 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Eberline E600 manual and calibration software available
Replies: 19
Views: 12195

Re: Eberline E600 manual and calibration software available

I was, indeed, one of the confused. Sorry about that.

Richard Hull
by Richard Hull
Sun Jul 25, 2021 6:21 pm
Forum: Vacuum Technology (& FAQs)
Topic: TMH-260 Turbo
Replies: 31
Views: 14597

Re: TMH-260 Turbo

Hitting the issue the hard way. Good luck with you efforts to spin up your turbo using a self-designed turbo controller. Keep us in the loop on how it turns out, once assembled.

Richard Hull
by Richard Hull
Sat Jul 24, 2021 9:33 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Silver Activation Demo Cell
Replies: 18
Views: 3435

Re: Neutron Silver Activation Demo Cell

We are told that GM tubes are poor detectors of gamma rays. Gamma rays have vast range of energies as does a shell based x-ray spectrum. Low energy photons can liberate electrons in their encounter with matter. The higher Z metals will exhibit more electrons per unit mass for any given photon energy...
by Richard Hull
Sat Jul 24, 2021 8:17 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Rhodium counter system and moderator for fusor V
Replies: 17
Views: 963

Re: New Rhodium counter system and moderator for fusor V

Thanks for clearing your original thrust up for me. The Russian tube is perfect for the Rh104m counting in intimate contact only due to the heavy output of its whimpy x-rays, I assume the claimed x-rays are nuclear in origin and not shell types. Wiki gives the following highly variable statement. "G...
by Richard Hull
Sat Jul 24, 2021 8:08 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Silver Activation Demo Cell
Replies: 18
Views: 3435

Re: Neutron Silver Activation Demo Cell

I ultimately decided against the 2" pancake as its gamma sensitivity is too high due to the steel backing doing compton scattering, making it far more sensitive to gammas of all energies. Most of my lab gammas are in the 500kev to 1.5mev range. This would increase my background. The intimate contact...

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