Search found 1527 matches

by Dennis P Brown
Tue Oct 23, 2018 3:57 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Overview of D-D and D-T Fusion Detectors
Replies: 4
Views: 77

Re: Overview of D-D and D-T Fusion Detectors

First off, no one except government grade labs can use tritium - that is a radioactive gas. As such, it is tightly controlled and very dangerous to have around people (breathing it.) So, please stop discussing that reaction. As for He fusion - this occurs very, very rarely even for the big machines....
by Dennis P Brown
Tue Oct 23, 2018 10:38 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Overview of D-D and D-T Fusion Detectors
Replies: 4
Views: 77

Re: Overview of D-D and D-T Fusion Detectors

This forum has FAQ's that have this exact information; however, search using neutron detectors. You should focus on He-3 based detectors. Please check the FAQ's before asking such elementary questions.
by Dennis P Brown
Tue Oct 23, 2018 10:29 am
Forum: Vacuum Technology (& FAQs)
Topic: Vacuum kit suggestions
Replies: 8
Views: 311

Re: Vacuum kit suggestions

A "Tee" is generally a three-way and a "Cross" is generally a four way; the difference for fusors is the number of available "ports". One can use either but having extra access ports can be very useful (but does add cost for flanges.) Since fusor's tend to be moderate in vacuum requirements (10^-5 t...
by Dennis P Brown
Tue Oct 23, 2018 10:21 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: LENR / Solid State Fusor
Replies: 12
Views: 338

Re: LENR / Solid State Fusor

Detailed answers require you study the field a bit - for instance: the definition of a "Barn" (that will answer your question of what the "4" is in the chart.) Doing this is necessary if you want to be taken seriously here. That said, you need to realize that these are 'solid' targets - do the math ...
by Dennis P Brown
Tue Oct 23, 2018 10:14 am
Forum: Please Introduce Yourself
Topic: Hello from Arlington, TX, USA
Replies: 5
Views: 173

Re: Hello from Arlington, TX, USA

Studying real plasma physics, I am sure, can be fun for the right person (I am currently studying General Relativity for that very reason - to each there own.) There are a vast array of books on the subject of intro plasma physics. It is a complex field because it often deals with real world, non-id...
by Dennis P Brown
Tue Oct 23, 2018 9:30 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: LENR / Solid State Fusor
Replies: 12
Views: 338

Re: LENR / Solid State Fusor

Welcome and I hope your idea progresses to actual experimentation. I will say a few points on the physics you mention. First off, ALL metals have that type of bonding - electrons are not bound but are shared within the material - that is the very definition of the metallic state (the Fermi surface) ...
by Dennis P Brown
Wed Oct 17, 2018 12:46 pm
Forum: The Trading Post
Topic: [Requist] Looking for vacuum equipment (NL)
Replies: 5
Views: 318

Re: [Requist] Looking for vacuum equipment (NL)

A few words: first, shipping deuterium gas is a nightmare - period. It requires very special hazard/explosive controls and that cost makes shipping a pump overseas look small in comparison. Rather, you will want heavy water (D2O) and use a electrolysis to convert into gas. A number of people here ha...
by Dennis P Brown
Mon Oct 15, 2018 2:23 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Jan Ruge Fusion Attempt @ Chaos Darmstadt
Replies: 13
Views: 1784

Re: Jan Ruge Fusion Attempt @ Chaos Darmstadt

It is rather important that you do "suppress" electrons from off the target using reverse biasing (this can be a challenge with your high voltage target - that is why I "grounded" my target relative to the gun so biasing was easy*.) The potential x-ray flux can be quit dangerous (electron's tend to ...
by Dennis P Brown
Thu Oct 11, 2018 11:21 am
Forum: Images du Jour
Topic: Archived - Tom McCarthy's Fusor Efforts
Replies: 21
Views: 7197

Re: Archived - Tom McCarthy's Fusor Efforts

The plasma color looks correct. If your pressure is dropping too low and your plasma going out, then certainly you need to "throttle" your turbo more via the gate valve since your pump rate is far too fast. For my system, I'd pump it down, adjust the gate valve almost closed, add deuterium to create...