Search found 9936 matches

by Richard Hull
Thu Aug 06, 2020 3:41 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: A Thought Experiment on Ideal Conditions
Replies: 26
Views: 6471

Re: A Thought Experiment on Ideal Conditions

All CRTs are pumped to at least 10e-6 torr usually deeper, if possible. 10e-6 torr is .001 microns! We never use micron terms, however for deep vacuums that are in CRTs. 300 microns are terrible junk glow discharge ranges. 300 microns = .3 torr. CRTs are at .000001 torr.

Richard Hull
by Richard Hull
Thu Aug 06, 2020 3:27 am
Forum: Images du Jour
Topic: Multi Cylinder Cathode Fusor
Replies: 5
Views: 165

Re: Multi Cylinder Cathode Fusor

Interesting... I look forward to more results on your ideas here. Welcome back to the fusor activities and operational regimes.

Richard Hull
by Richard Hull
Wed Aug 05, 2020 7:24 am
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 159
Views: 24851

Re: Coronavirus pandemic

Interestingly, the entire state of Virginia had 9 new covid cases reported yesterday, Aug 4. I have been going out to sit down restaurants for about 2 months now. My wife and I went out to eat 4 times in the last 9 days and to a friends to join he and his wife in their in-ground pool. Having a blast...
by Richard Hull
Tue Aug 04, 2020 7:46 pm
Forum: Announcements and Site Administration Topics
Topic: Coronavirus pandemic
Replies: 159
Views: 24851

Re: Coronavirus pandemic

I worry more about the possibility that the higher ups in the government are finding lies regarding covid deaths. I have talked about those killed or die by other causes such as accidents, mis-adventures, murders, or other causes at the time of hospital admission. All admissions that end in death ar...
by Richard Hull
Tue Aug 04, 2020 9:43 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: A new neutron moderator for fusor V - a talk in moderation
Replies: 2
Views: 243

Re: A new neutron moderator for fusor V - a talk in moderation

Fabulous work Mark! You did a great job. I am glad you got the same boost I did. If you have a BTI you need to hop on that calibration. I am just using qualitative, raw, timed counts to let me know what I am doing. Wait until you see what I've got cookin' next! Relates to activation. I, too, noticed...
by Richard Hull
Sun Aug 02, 2020 11:42 pm
Forum: Images du Jour
Topic: Demo Fusor Progress
Replies: 23
Views: 1034

Re: Demo Fusor Progress

Great work in a father son project. We like to see this family involvement and support. I have logged you into the plasma club.

Richard Hull
by Richard Hull
Sun Aug 02, 2020 5:41 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor 2020 Activation Experiments
Replies: 9
Views: 462

Re: Fusor 2020 Activation Experiments

What will you do with all that paraffin!? I think Carl noted that paraffin also acted as a neutron absorber in large quantities. But I guess any large moderator assembly might do that I had two 50 lb sacks and sold one at HEAS 2018. The other still sits outside under my lab porch overhang area. In a...
by Richard Hull
Sun Aug 02, 2020 1:55 am
Forum: Interesting Links
Topic: News on ITER
Replies: 4
Views: 440

Re: News on ITER

One would hope that for the billions spent, they have covered this, but remember the sandwich or part thereof left in the collider?

Richard Hull
by Richard Hull
Sun Aug 02, 2020 1:50 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor 2020 Activation Experiments
Replies: 9
Views: 462

Re: Fusor 2020 Activation Experiments

Wow! That is a gang o' paraffin! I bought 100 lbs of paraffin in 1999 from "Missey's Candles" on line. I was going to use it, but it was too much of a fire hazard, (fuel you know), to have in my home- attached lab. So I went with water moderation and now, as seen, in my fusor V postings, HDPE. Carl ...
by Richard Hull
Sun Aug 02, 2020 1:36 am
Forum: Fusor Construction & Operation (& FAQs)
Topic: Cube fusor build
Replies: 57
Views: 8342

Re: Cube fusor build

I believe and assume from Jon's report that the movable device that made the measurements was the 2" diameter BC-720 work-alike on a PMT which detects only fast neutrons, not needing a moderator with only about .1% efficiency for the scintillator. You need a hot source to make it sing. (low CPM read...