Search found 9791 matches

by Richard Hull
Thu Jun 04, 2020 3:19 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Pulse x-ray generators from ebay
Replies: 3
Views: 142

Re: Pulse x-ray generators from ebay

Let me know when you are done and I will kill the sale thread.

Richard Hull
by Richard Hull
Wed Jun 03, 2020 10:12 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusor theory variant on arxiv.. EV Tsiper
Replies: 16
Views: 493

Re: Fusor theory variant on arxiv.. EV Tsiper

Yes, for fusor work, a fore line trap or any form of trap is never needed if proper procedures are used in the construction and operation of the vacuum system.

Richard Hull
by Richard Hull
Wed Jun 03, 2020 3:38 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusor theory variant on arxiv.. EV Tsiper
Replies: 16
Views: 493

Re: Fusor theory variant on arxiv.. EV Tsiper

I hope if you do play with a turbo pump, it survives longer than mine did in my recent fusor effort. It amazes me how they can be both wonderful and evil at the same time. Of course we do play rough with them.

Richard Hull
by Richard Hull
Tue Jun 02, 2020 6:33 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusor theory variant on arxiv.. EV Tsiper
Replies: 16
Views: 493

Re: Fusor theory variant on arxiv.. EV Tsiper

Robert, you had two copies of your post here. This sometimes happens. When I see there are two copies of the same post, I delete one of the copies. To my amazement, both copies disappeared! Likewise, when I do delete a copy, I have never see a notice appear on the board that it is deleted as in this...
by Richard Hull
Mon Jun 01, 2020 7:19 pm
Forum: Items For Sale
Topic: 150kVp 50ns pulsed x-ray sources on ebay
Replies: 22
Views: 1767

Re: 150kVp 50ns pulsed x-ray sources on ebay

This last offering is now noted. Once this has another day or two, all three pages in this post will be wiped. All the information is gone forever. I will give this two more days and it is gone.
As always, these are not detailed discussion forums.

Richard Hull
by Richard Hull
Sun May 31, 2020 7:07 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusor theory variant on arxiv.. EV Tsiper
Replies: 16
Views: 493

Re: Fusor theory variant on arxiv.. EV Tsiper

I think that in spite of our not being anointed to the degree of some of the paper posters, We can comment and critically review any paper as long as our comments are taken for what value they contain, if any. I can see no need for deletions here. We are not contrarian for its sake, but merely quest...
by Richard Hull
Sun May 31, 2020 6:42 pm
Forum: Images du Jour
Topic: Restoration pfeiffer duo 004
Replies: 10
Views: 333

Re: Restoration pfeiffer duo 004

Fabulous piece of work and an uphill battle for sure. You are a person who makes things happen.

Richard Hull
by Richard Hull
Sun May 31, 2020 7:08 am
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ -Update- Neutron detection methods (2015)
Replies: 7
Views: 7553

Re: FAQ -Update- Neutron detection methods (2015)

Yet a further update on noise in neutron counting. Noise is a function of detector volume and the ability to remain insensitive to outside radiations, (usually gamma and X-radiation), while having a very good detection efficiency for neutrons per unit volume. 1. The larger the volume, regardless of ...
by Richard Hull
Sun May 31, 2020 6:03 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Fusor theory variant on arxiv.. EV Tsiper
Replies: 16
Views: 493

Re: Fusor theory variant on arxiv.. EV Tsiper

I was rather intrigued by the arxiv paper, just above.... It appears to be little more than a paper on "how low can you go". A study in just how fine and accurately can a group measure fusion above a background floor. Palladium loading for all forms of hydrogen is well known and the tunneling effect...
by Richard Hull
Fri May 29, 2020 7:12 pm
Forum: Items For Sale
Topic: [Request] Ludlum Meter Face with 0-2.5kV Scale, and Meter Handles
Replies: 4
Views: 3323

Re: [Request] Ludlum Meter Face with 0-2.5kV Scale, and Meter Handles

Before I go to some degree. Do you currently have the original un-dented brass or aluminum face plate? If so, a one-to one scan of another person's face plate would allow immediate repair via printing and attachment to your old faceplate. This general idea has been expressed, already. I would be stu...