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by Richard Hull
Fri Aug 06, 2021 4:00 am
Forum: Please Introduce Yourself
Topic: Aerospace Engineer in Seek of Viable Airborne Power Source
Replies: 2
Views: 14

Re: Aerospace Engineer in Seek of Viable Airborne Power Source

You understand power, I assume, as an engineer. Currently the fusors are producing a net loss of energy of nearly a billion to one. The very best is a 500 million to one net loss over input energy to output fusion energy. No useful energy to be found here, only massive net losses. It's the truth. Th...
by Richard Hull
Thu Aug 05, 2021 7:56 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Rhodium counter system and moderator for fusor V
Replies: 24
Views: 1360

Re: New Rhodium counter system and moderator for fusor V

Re: Finn's posting....The silvers have far different decay times for the product isotopes of Ag108 of 2.4 minutes, (144 seconds) and Ag110 of 24.4 seconds. I think you are looking at the metastables which cannot be produced via neutron activation of silver. (look at the method of production column f...
by Richard Hull
Thu Aug 05, 2021 6:57 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Rhodium counter system and moderator for fusor V
Replies: 24
Views: 1360

Re: New Rhodium counter system and moderator for fusor V

Thanks for posting this update, Jim. This decay diagram is far more elucidating than the complex diagrams at the rear portion of the table of the isotopes. It was hard to get it in my head that as RH104 was being made, (my super hot 2.4 MeV beta emitter), the 104m was also being made, but as noted, ...
by Richard Hull
Thu Aug 05, 2021 6:20 pm
Forum: New User Chat Area
Topic: Making a metal wool foreline trap, looking for advice :)
Replies: 2
Views: 56

Re: Making a metal wool foreline trap, looking for advice :)

I did not know that the micro maze was still sold by Lesker. I have used the micro maze trap back in the 90's it was great as long as you kept it well baked out. (heater is included internally) It will, indeed, get one decade deeper than the pump. However, it should never be used in a system that is...
by Richard Hull
Thu Aug 05, 2021 5:52 pm
Forum: New User Chat Area
Topic: Installing Vacuum Pump Fittings
Replies: 9
Views: 307

Re: Installing Vacuum Pump Fittings

That gasket looks a wee bit shot to hell. Stuff another one in it. Viton, preferably.

Richard Hull
by Richard Hull
Thu Aug 05, 2021 5:18 am
Forum: Other Forms of Fusion - Theory, Construction, Discussion, URLs
Topic: Pancake Probe Sees All
Replies: 5
Views: 947

Re: Pancake Probe Sees All

Yes, I have long called this putt-putt boat fusion. More akin to trying to catch lightning bolt discharges to feed the grid. Not realistic, of course. The shining example of a fail in this is the NIF debacle. This effort is now mostly used for it original funding effort of stockpile stewardship test...
by Richard Hull
Wed Aug 04, 2021 7:54 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: New Rhodium counter system and moderator for fusor V
Replies: 24
Views: 1360

Re: New Rhodium counter system and moderator for fusor V

This is a discussion of the graphs and complex two level decays. Silver and Rhodium have this complex decay scheme due to completely different reasons. Silver has two distinct natural isotopes that each have high cross sections. These co-jointly activate and decay. Rhodium has only one natural isoto...
by Richard Hull
Wed Aug 04, 2021 1:33 am
Forum: Images du Jour
Topic: Finn Hammer, fusor update.
Replies: 73
Views: 15038

Re: Finn Hammer, fusor update.

PVC or any plastic just can't be allowed to enter a fusor and its ion/electron rich bombardment regions.

Richard Hull
by Richard Hull
Tue Aug 03, 2021 6:56 pm
Forum: New User Chat Area
Topic: deuterium enrichment
Replies: 8
Views: 287

Re: deuterium enrichment

For the amateur, proving you have H20 vs. D20 can be expensive. A simple, moderately inexpensive, but not conclusive test is the freezing point/melting points using a highly calibrated thermometer. Of course, we have our fusors to tell the tale after the PEM cell electrolyzes the liquid. Richard Hull
by Richard Hull
Tue Aug 03, 2021 2:23 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Restoring my Eberline PNC-1
Replies: 3
Views: 179

Re: Restoring my Eberline PNC-1

I have now tested the PNR-4 with mated remball and it matched closely the rate given by the PNC-1, while the fusor was run at an amazing level and recorded a peak rate of 15 mr/hr. I feel this instrument needs no calibration. This is bit over the 14.2 mrem measured with the calibrated PNC-1 meter la...

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