Search found 2329 matches

by Carl Willis
Wed Jun 19, 2019 4:00 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Joe Gayo's lab tour
Replies: 69
Views: 21830

Re: Joe Gayo's lab tour

Joe, this is a top-flight effort, and I am thrilled to see what appears to be a novel paradigm in fusor efficiency developing in your work. The regime of high pressure, small electrodes, high potential, and high neutron yield is undoubtedly a new domain worthy of further attention. Have you provided...
by Carl Willis
Mon Jun 15, 2015 11:28 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Low Light Photography
Replies: 10
Views: 5920

Re: Low Light Photography

I take low-light photos of radiation-related subjects frequently. I picked out a Fujifilm X-E2 mirrorless camera with that application specifically in mind, and it meets expectations. Obviously, you can spend a lot more money on a better camera and ass-kicking lenses. In particular, this is the doma...
by Carl Willis
Fri Jun 12, 2015 11:45 pm
Forum: Images du Jour
Topic: Finally, some more runs of my fusor!
Replies: 4
Views: 2624

Re: Finally, some more runs of my fusor!

Hi Jamie, This is a very good experiment, incorporating both a moderator removal check and a D2-vs-air check, as well as multiple detectors (you had the EPD area monitor as a back-up, and it got some dose). Neutrons are detectable on the He-3 with the moderator off, but the count is much higher with...
by Carl Willis
Fri Jun 12, 2015 10:52 pm
Forum: Fusion --- Past, Present, and Future
Topic: Book about Taylor Wilson is out
Replies: 19
Views: 17034

Re: Book about Taylor Wilson is out

Tom kindly sent me an advance copy of his book, which I read last weekend. He has chronicled an inspirational phenomenon in nuclear physics: the ability of an enthusiastic child (a bright one, necessarily with the support of committed parents and mentors) to participate meaningfully in this domain p...
by Carl Willis
Fri Nov 07, 2014 12:48 am
Forum: Vacuum Technology (& FAQs)
Topic: Help Identifying this Vacuum Fitting
Replies: 7
Views: 2716

Re: Help Identifying this Vacuum Fitting

The TC gauge thread is 1/8" NPT.
by Carl Willis
Thu Nov 06, 2014 11:44 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Nuclear measurements on Chicago Pile artifact
Replies: 11
Views: 5141

Re: Nuclear measurements on Chicago Pile artifact

I got the green light from the DOE radiological assessment team that takes care of the National Nuclear Museum here in Albuquerque. How the museum wants to display it as a loaned item is still being resolved, but hopefully it will be there soon. On another front, I collected about 250 mg of uranium ...
by Carl Willis
Wed Nov 05, 2014 8:36 pm
Forum: Vacuum Technology (& FAQs)
Topic: Please let us know your experience with glass to metal seal
Replies: 33
Views: 11033

Re: Please let us know your experience with glass to metal s

Hello Steve, You have described a very challenging seal for a hobbyist to make by himself, and a costly one to obtain from a professional. I think there are preferred alternatives to the glass-metal seal in this situation as you have described it. A master scientific glassblower would make this seal...
by Carl Willis
Tue Nov 04, 2014 7:42 pm
Forum: Vacuum Technology (& FAQs)
Topic: Please let us know your experience with glass to metal seal
Replies: 33
Views: 11033

Re: Please let us know your experience with glass to metal s

As a very amateur glassblower with a self-sustaining hobby making decorative plasma tubes, I have made tungsten-borosilicate seals via uranium glass and Houskeeper ribbon seals from copper straight to borosilicate. Both types are challenging to perform reliably in my experience. The Dumet or platinu...
by Carl Willis
Mon Nov 03, 2014 5:53 am
Forum: High Voltage - Fusor Input Power (& FAQs)
Topic: Glow in the dark paint
Replies: 5
Views: 2922

Re: Glow in the dark paint

I think a better place for this topic is in the Radiation Detection forum. Some luminous paints are made with scintillating materials like ZnS. Cheap glow-in-the-dark paint from a hobby store is almost always ZnS in my experience, and so is a decent scintillator for electrons. Unfortunately, this pa...