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Re: First Colorado Design Sequence

... just Alpha's - and as I mentioned, a Be/Am system will produce too few neutrons to be much of a safety hazard.
by Dennis P Brown
Mon Feb 06, 2017 12:39 pm
 
Forum: New User Chat Area
Topic: First Colorado Design Sequence
Replies: 5
Views: 176

Re: Neutron Transmutation Doping

... broad, and generally depends on qualifiers (often implicit). Tables in safety standards give, for neutrons at 2.5e-8 Mev, a Q factor of 2 and a neutron to rem factor of 980 million. So the ...
by Rich Feldman
Tue Oct 18, 2016 2:16 pm
 
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Neutron Transmutation Doping
Replies: 15
Views: 876

Re: Water as Neutron Shield

... number one hazard I see with a fusor or a sim-fusor. Also, exactly what safety regulations are there for the average home fusor? Are you serious ... because it can burn (talk about safety risk; lol.) Relative to stopping neutrons paraffin is excellent and readily available to the average home ...
by Dennis P Brown
Fri Jul 29, 2016 9:51 am
 
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Water as Neutron Shield
Replies: 17
Views: 2078

Re: safety and sercurity

... measure microns accurately.) This ignores detection equipment for the neutrons. This should answer the question about safety ... read the various FAQ's on the given topics here at the forum. Please don't ask questions ...
by Dennis P Brown
Fri Jul 15, 2016 2:58 pm
 
Forum: New User Chat Area
Topic: safety and sercurity
Replies: 2
Views: 690

Re: Mark3 operation 3e-4 torr / quad ion source @ -40kV, 1mA

Runs are kept short for safety(and thermal issues) x-ray rate at the viewport surface is 10-15mR/h through the ... enough to get good counting statistics from the BTI dosimeter, so about 2-3mR of neutrons at the surface of the fusor(~3.5" from focal point) per run. I'm usually ...
by Andrew Seltzman
Mon Jul 11, 2016 3:37 am
 
Forum: Fusor Construction & Operation (& FAQs)
Topic: Mark3 operation 3e-4 torr / quad ion source @ -40kV, 1mA-9mA
Replies: 127
Views: 16042

FAQ - A neutron moderator for activation/detection

... but worked OK. This works much better. All D-D fusion produces fast neutrons which can't do much of anything for the experimenter. Valuable neutrons ... metallic object close to 45,000 volts. These insulating rods are a safety factor. You could design this to go under the fusor, leaving room ...
by Richard Hull
Mon May 09, 2016 6:28 am
 
Forum: FAQs: Neutron - Radiation Detection
Topic: FAQ - A neutron moderator for activation/detection
Replies: 3
Views: 1075

Re: Can fusion make fission power plants more efficient?

... researchers routinely built mini-reactors in their labs to supply neutrons. Thank goodness that was outlawed in the late 60's.) The issue of ... too far afield. Please just PM further questions on fission/breeders/safety rather then add to this thread; that is, unless it is a directly related ...
by Dennis P Brown
Fri Apr 22, 2016 12:24 pm
 
Forum: New User Chat Area
Topic: Can fusion make fission power plants more efficient?
Replies: 13
Views: 2166

Hello from Canada, I'm 15

... first haha Once I learned about nuclear reactions, and fusion, protons, neutrons, and all that fun stuff I was really into it. My interest in building ... doing that for almost 6 years now haha) I have researched about the safety of such apparatus's, so dont worry. Cheers guys.
by Austin_Bennett
Mon Apr 11, 2016 10:04 pm
 
Forum: Please Introduce Yourself
Topic: Hello from Canada, I'm 15
Replies: 0
Views: 447

Re: Greg Courville Neutron Club entry Feb 2016

... out of power or melt things), we see a super steep curve of increased neutrons with main HV potential. We get detectability in a nearby He3 around ... I suggest a nice pancake geiger somewhere in your setup for your own safety. When it starts counting fast even inside a box of 4" thick lead ...
by Doug Coulter
Mon Feb 22, 2016 12:10 am
 
Forum: Images du Jour
Topic: Greg Courville Neutron Club entry Feb 2016
Replies: 9
Views: 1842

FICS II Planning and construction

... ion source (seen on top). STAR-2 was quite successful it produced neutrons in the 2.5 x 10^5 range but it was temperamental and used to spit ... stuff others haven't done before, which is why one should impose double safety measures when treading an unknown path. FICS-1.jpg FICS-2 , is my ...
by Steven Sesselmann
Sat Nov 28, 2015 3:37 am
 
Forum: Fusor Construction & Operation (& FAQs)
Topic: FICS II Planning and construction
Replies: 45
Views: 7923
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