Search found 66 matches

by JakeJHecla
Mon Oct 28, 2013 11:24 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor construction efforts
Replies: 12
Views: 7414

Re: Fusor construction efforts

Danny, though I doubt you've put yourself much danger in the cleanup measures you've taken so far, please be careful running the pump in regards to ventilation. Here's my "greenie-weenie" reasoning: 1) Mercury is not particularly dangerous on contact, but is easily absorbed through the lungs. It's a...
by JakeJHecla
Sun Oct 27, 2013 5:13 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: Fusor construction efforts
Replies: 12
Views: 7414

Re: Fusor construction efforts

I'd guess the mercury came from the roughing pump being used to back a mercury diffusion pump. Other than that, I can't think of a plausible source. Do be careful on the decon work, mercury poisoning is nothing to laugh at.
by JakeJHecla
Thu Oct 17, 2013 9:24 pm
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Atom Smasher
Replies: 22
Views: 8480

Re: Atom Smasher

Kaku claims to have built a betatron. However, the device he has repeatedly described in interviews sounds only vaguely like a Betatron (Goal posts? What?). Might I add that it's not an "atom smasher," but a compact electron accelerator
by JakeJHecla
Thu Sep 26, 2013 2:57 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: Anisotropic Neutron Emission - Discussion
Replies: 17
Views: 7980

Re: Anisotropic Neutron Emission - Discussion

Just to clarify, as someone who had a hand in designing this set of experiments, the hypothesis behind the apparent anisotropy was that we were seeing beam-on-target fusion in the walls, and therefore the field doesn't look like what we would expect from a point source in the poissor. We never sugge...
by JakeJHecla
Wed May 08, 2013 4:12 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: NWNC CR39 Project- Summary and Request to Active Fusioneers
Replies: 16
Views: 6470

Re: NWNC CR39 Project- Summary and Request to Active Fusione

Jon- Thanks for pointing me to those threads. I had not seen those investigations before! I would like to note that the observations we took seemed to indicate the reverse of what one would expect (and what you saw with the flanges/BTIs). That is, we saw significantly higher neutron counts near the ...
by JakeJHecla
Sat May 04, 2013 4:54 pm
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: NWNC CR39 Project- Summary and Request to Active Fusioneers
Replies: 16
Views: 6470

Re: NWNC CR39 Project- Summary and Request to Active Fusione

Looks like I messed up units. The real number should be in the range of 5% interact with the plate. Still far smaller than the observed deviation
by JakeJHecla
Sat May 04, 2013 3:58 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: NWNC CR39 Project- Summary and Request to Active Fusioneers
Replies: 16
Views: 6470

Re: NWNC CR39 Project- Summary and Request to Active Fusione

Richard, Jon- I attempted to calculate the number of neutrons that would interact in any way (using Sigma total) with the SS conflats assuming the plates are 2cm thick, 16.5 cm from the poissor and that the SS has a total neutron cross section at 2.5MeV of ~3 barns. I came up with a number that indi...
by JakeJHecla
Fri May 03, 2013 4:35 am
Forum: Fusor and/or General Fusion Theory (& FAQs)
Topic: NWNC CR39 Project- Summary and Request to Active Fusioneers
Replies: 16
Views: 6470

NWNC CR39 Project- Summary and Request to Active Fusioneers

Hello All- As Carl Greninger has posted, a team of three students from Northwest Nuclear Consortium has been working on a project involving mapping the neutron output from our onsite fusor. This is in essence an attempt to verify/disprove the idea that the fusor radiates neutrons isotropically, as s...
by JakeJHecla
Thu Apr 18, 2013 3:37 am
Forum: Vacuum Technology (& FAQs)
Topic: dow corning in place of santovac5
Replies: 3
Views: 1134

Re: dow corning in place of santovac5

Pick up some LDS704 (DC knock-off). It's about $30 for 100ml
by JakeJHecla
Wed Apr 03, 2013 3:39 pm
Forum: Fusor Construction & Operation (& FAQs)
Topic: How long can you run a fusor?
Replies: 6
Views: 2399

Re: How long can you run a fusor?

Depends on the stability of the reactor. My kludged-up fusor will barely stay lit for 30s without messing around with the gas flow, while I've seen the NWNC reactor run for over an hour almost completely hands-off.