Search found 10420 matches
- Sat Apr 17, 2021 5:25 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: PMT/Scint. divider topology differences
- Replies: 6
- Views: 169
Re: PMT/Scint. divider topology differences
I have always made up my PMT devices as separate. I have several Ludlum scint. probes that are single and they attach to walk-around survey meters. The single connection is fine for that purpose. For Gamma spec work, my 3 shiny chromed Bicrons and others like Harshaw always separate the HV from the ...
- Thu Apr 15, 2021 4:34 am
- Forum: Images du Jour
- Topic: UPS Reactor - Plasma achieved!
- Replies: 6
- Views: 295
Re: UPS Reactor - Plasma achieved!
Dennis is correct. There are strict rules created last year for the plasma club. On that fatal day, which had over 100 claimants collected over 20 years were wiped from existence to have 0 names in the club until, over the last 5-6 months, we have only added three new members. Check out the rules an...
- Wed Apr 14, 2021 3:52 am
- Forum: Images du Jour
- Topic: UPS Reactor - Plasma achieved!
- Replies: 6
- Views: 295
Re: UPS Reactor - Plasma achieved!
Congratulations on getting that glow in you project fusor. All the best in your group's continuing efforts in achieving fusion.
Richard Hull
Richard Hull
- Mon Apr 12, 2021 4:10 am
- Forum: Vacuum Technology (& FAQs)
- Topic: Bell and whistles diffusion pump based vacuum system.
- Replies: 37
- Views: 5156
Re: Bell and whistles diffusion pump based vacuum system.
My Pfeiffer passes through a resonant point at every start up and shut down lasts about a second or two. I figure that is normal. At least it pumps well so I'm not concerned. Everything has a resonance point.
Richard Hull
Richard Hull
- Sun Apr 11, 2021 6:26 pm
- Forum: Vacuum Technology (& FAQs)
- Topic: Bell and whistles diffusion pump based vacuum system.
- Replies: 37
- Views: 5156
Re: Bell and whistles diffusion pump based vacuum system.
I have tried slowing down the turbo by venting and even with gentle slowing was also horrified and worried for the pump. I will never attempt it again. At 75 years of age I figure I have the time to be off doing something else useful and constructive as the device slows naturally to a stop. Richard ...
- Sun Apr 11, 2021 5:32 pm
- Forum: FAQs: Neutron - Radiation Detection
- Topic: FAQ - About electronic noise in neutron detection
- Replies: 0
- Views: 58
FAQ - About electronic noise in neutron detection
Electronic based neutron detection can be done using many available detectors. The fusor can be an electronically powerful and noisy RFI and EMI device. Almost all neutron detectors are secondary or "stepped" detection devices that produce very weak signals. Likewise, many are subject to detection o...
- Sun Apr 11, 2021 4:40 pm
- Forum: Announcements and Site Administration Topics
- Topic: Neutron Club / Recycled Fusor
- Replies: 10
- Views: 608
Re: Neutron Club / Recycled Fusor
Codicil #4 has been added to the posted rules for becoming a neutron club member.
Richard Hull
Richard Hull
- Sun Apr 11, 2021 4:22 pm
- Forum: Announcements and Site Administration Topics
- Topic: Neutron Club / Recycled Fusor
- Replies: 10
- Views: 608
Re: Neutron Club / Recycled Fusor
This good info and ought to be in the detection forum. I will post my thoughts now there. I have created a FAQ on noise in neutron detection at https://fusor.net/board/viewtopic.php?f=31&t=13961&p=91005#p91005 No! a neutron generator tube doesn't cut it for the neutron club. Here, we are about the j...
- Sat Apr 10, 2021 11:35 pm
- Forum: Announcements and Site Administration Topics
- Topic: Neutron Club / Recycled Fusor
- Replies: 10
- Views: 608
Re: Neutron Club / Recycled Fusor
I was stunned that "Joe" won it. Thanks Joe for telling it wasn't you. I had visions of our Joe Gayo driving to Miami from CA picking the system up and driving back! The codicil related to must "pick up, will not ship, will not break up system" put a real strain on anyone who might be beyond a very ...
- Sat Apr 10, 2021 5:37 am
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Long Lasting Bubble Detector
- Replies: 6
- Views: 363
Re: Long Lasting Bubble Detector
Thanks for the update on CA education direction. I know a teacher in our local school system. The kids are back in class and being taught now, finally, but it is exactly as you say. No hands on and the death of any cursive writing, no history in many cases, STEM stuff is dumbed down and I was stunne...