Search found 17 matches

by Justin Fozzard
Mon Dec 03, 2018 10:15 am
Forum: Advanced Technical Discussion Area
Topic: Alternative Reactor Design
Replies: 25
Views: 6424

Re: Alternative Reactor Design

Hello Patrick, Have you looked at the mean free path of the colliding beams? Richard Hull has posted a very useful FAQ on the topic: http://www.fusor.net/board/viewtopic.php?t=3557 You will find that even if you have some method of "compressing" the beams and re-circulating them, the chances of coll...
by Justin Fozzard
Sun Dec 02, 2018 10:12 pm
Forum: Advanced Technical Discussion Area
Topic: Alternative Reactor Design
Replies: 25
Views: 6424

Re: Alternative Reactor Design

Glasstone and Lovberg (Controlled Thermonuclear Reactions, 1960, p.67) discuss colliding beams as a possible approach to fusion and give some interesting figures that will put the idea into perspective. They suggest colliding two 50keV deuteron beams with a (realistically achievable) current density...
by Justin Fozzard
Mon Nov 05, 2018 3:03 pm
Forum: New User Chat Area
Topic: Neon sign transformer, AC to DC
Replies: 10
Views: 1099

Re: Neon sign transformer, AC to DC

Thats a good idea Harald, converting the FAQs into wiki-articles. There are so many wise words in the FAQs and they would make an excellent introductory book. If you had the time, would it be possible to also convert them into a PDF booklet that we could download and print? I find a paper printout m...
by Justin Fozzard
Thu Nov 01, 2018 9:24 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Detector and Moderator Test
Replies: 9
Views: 1147

Re: Neutron Detector and Moderator Test

Kai You've done some good experiments and I would be interested to find out more about your detector. I hope that you apply for a patent for it. Could you tell us the publication number for the patent that you were granted? I note that the application that you have linked was rejected on page 32 for...
by Justin Fozzard
Wed Oct 31, 2018 12:09 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Interesting paper on Neutron Measurement Techniques
Replies: 2
Views: 313

Re: Interesting paper on Neutron Measurement Techniques

Another very interesting paper, this time a doctoral thesis by D.M.Bibby on 14MeV neutron production and detection: https://dspace.lboro.ac.uk/dspace-jspui/bitstream/2134/35252/1/Thesis-1970-Bibby.pdf He discusses the construction details of a beam on target neutron source and various activation met...
by Justin Fozzard
Wed Oct 31, 2018 11:20 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Interesting paper on Neutron Measurement Techniques
Replies: 2
Views: 313

Interesting paper on Neutron Measurement Techniques

Here is a link to a paper on measuring the neutron flux around high energy x-ray machines. It discusses the use of indium and gold foil activation methods and also a method of using phosphorous pentoxide either as a powder or in solution along with a scintillation probe: https://aapm.org/pubs/report...
by Justin Fozzard
Wed Oct 31, 2018 9:57 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Yet another small fusion start-up
Replies: 1
Views: 429

Yet another small fusion start-up

I found this website (linked via a nuclear news site) that shows yet another (and probably doomed) approach to fusion. They seem to be trying a re-hash of a dense plasma focus mixed with shock wave compression. http://www.world-nuclear-news.org/Articles/Initial-tests-at-UK-pulsed-power-device? https...
by Justin Fozzard
Sun Oct 28, 2018 8:19 am
Forum: Please Introduce Yourself
Topic: Greetings from Romford, Essex
Replies: 4
Views: 420

Re: Greetings from Romford, Essex

Hello Shane,
I buy Deuterium gas for my experiments in 38L lecture bottles from Argo International Ltd. in Basildon, Essex. They also have stainless steel regulators to fit the lecture bottles.

Cheers,
Justin Fozzard
by Justin Fozzard
Thu Oct 25, 2018 4:49 pm
Forum: Please Introduce Yourself
Topic: Hello from Arlington, TX, USA
Replies: 7
Views: 863

Re: Hello from Arlington, TX, USA

Another superb book from the Project Sherwood era (allegedly called that because "it Sher-wood be nice if it works") is Controlled Thermonuclear Reactions by Glasstone and Lovberg (1960), Krieger Publishing Co. The maths inside is not too onerous, although cgs units are used. A very interesting book...
by Justin Fozzard
Thu Sep 13, 2018 9:35 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Victoreen 450p question
Replies: 9
Views: 3198

Re: Victoreen 450p question

A few years ago I worked for a company that made magnetrons, TWTs, thyratrons and other high power RF tubes. Many of the tubes were evacuated and then roll sealed using a hydraulicly operated tool. The seal had a blob of solder added afterwards to protect the assemblers from being cut by the extreme...