Search found 466 matches
- Fri Mar 26, 2021 11:53 am
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Scintillators by Nuclear Enterprises
- Replies: 6
- Views: 338
Re: Scintillators by Nuclear Enterprises
Look for muons with big block plastic scintillators.
- Fri Mar 26, 2021 12:02 am
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Scintillators by Nuclear Enterprises
- Replies: 6
- Views: 338
Re: Scintillators by Nuclear Enterprises
Not all phoswiches are proton recoil detectors I think your NE 421 may be a Li6 detector. That would make it a thermal neutron detector. See this paper https://ntrs.nasa.gov/api/citations/19650000443/downloads/19650000443.pdf?attachment=true The 401 with the B10 inscription is also likely a thermal ...
- Thu Mar 25, 2021 8:30 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Scintillators by Nuclear Enterprises
- Replies: 6
- Views: 338
Re: Scintillators by Nuclear Enterprises
Those are phoswich detectors. I think fast neutron.
- Wed Mar 24, 2021 6:22 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: One more cube fusor
- Replies: 21
- Views: 2817
Re: One more cube fusor
Finn, My turbo experience is with a Leybold not Pfeiffer, but mine is a similar size. I started using a horizontal alignment recently after always using vertical in the past. I use a bellows right angle valve before the turbo. So, there is a right angle. I also have a KF 40 sized instrument pipe bef...
- Mon Mar 08, 2021 6:43 pm
- Forum: Interesting Links
- Topic: Pro's of new Molten Salt reactor being constructed - discussed by one of Richard's favorite You tuber
- Replies: 4
- Views: 1354
Re: Pro's of new Molten Salt reactor being constructed - discussed by one of Richard's favorite You tuber
I was good until she said that the reactor makes steam as an offering to the turbine fairy.
- Tue Mar 02, 2021 4:14 pm
- Forum: Fusor Construction & Operation (& FAQs)
- Topic: One more cube fusor
- Replies: 21
- Views: 2817
Re: One more cube fusor
Just premier work!
- Sat Feb 27, 2021 11:27 pm
- Forum: Images du Jour
- Topic: He3 Neutron Detector HDPE moderator
- Replies: 5
- Views: 798
Re: He3 Neutron Detector HDPE moderator
A lot will depend on whether it is a proportional tube or corona tube. I personally prefer proportional because it is more straight forward. Many of the Russian tubes are corona but not all. Some folks have had good luck with both, and there is good info on the forum. 1300 to 1500 sounds like a typi...
- Sat Feb 27, 2021 6:39 pm
- Forum: Images du Jour
- Topic: He3 Neutron Detector HDPE moderator
- Replies: 5
- Views: 798
Re: He3 Neutron Detector HDPE moderator
That will surely count neutrons for you. The construction looks good. You probably don't need as much hdpe to moderate d d fusion neutrons as you would for a Californium source because d d neutrons are only 2.45 MeV. I'm not suggesting you change your design, Carl Willis did some work someone back t...
- Sat Feb 27, 2021 6:05 pm
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Neutron Silver Activation Demo Cell
- Replies: 14
- Views: 964
Re: Neutron Silver Activation Demo Cell
I reviewed my data from last night's run. I have the ability to recreate bin sizes on the existing data from the PRA software. In the first second after I shut off the fusor 26 counts were recorded on the silver faced GM. That's an initial count rate of 1560 cpm. The next handful of seconds were clo...
- Sat Feb 27, 2021 1:05 am
- Forum: Neutrons, Radiation, and Detection (& FAQs)
- Topic: Neutron Silver Activation Demo Cell
- Replies: 14
- Views: 964
Re: Neutron Silver Activation Demo Cell
Tonight I ran the fusor twice. I terminated the first run after a total time of about 12 minutes when counts started to drop presumably from heat. I fan cooled the chamber and started a second run that ended with a run at near peak flux that varied no more than +/- 10% for seven minutes. I collected...