Getting fusor V cranked for HEAS

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Richard Hull
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Getting fusor V cranked for HEAS

Post by Richard Hull »

Fired up the fusor today. It hasn't been on and up to max spec since HEAS last October. Although I did a decent run for 2 visitors in January.
As most know, I have to load the walls over time to reach the mega mark. Peculiar to this fusor. I will later attach a daily performance run towards the middle of September in this thread.

Typical time from totally long dead to max run is on the order of 7-10 daily runs.

Yesterday was typical of a long downed fusor V.
best run after 30 minutes pumping and bombardment cleaning....

Background neutron count was 9 cpm (averaged over 10 minute count.)

20kv....10ma ....4.5 microns D2
max count 377 neutron countss in 1 minute. Well above back ground. However when this puppy is really working to the max it is usually more like
44kv....12ma ...14 microns D2
max count 121,000 neutron counts in 1 minute.

Got a long way to go. Chart is below after 15 September.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Richard Hull
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Re: Getting fusor V cranked for HEAS

Post by Richard Hull »

I will begin the chart today, Sept 13. I actually ran the fusor yesterday over 3 different start stop runs. It was pitiable. Still, today was good enough to be a kickoff for the chart promised so others can observe the daily loading process. My background neutron count runs from 5-10 cpm but 8cpm is average. Rutherford would be happy with zero statistics needed with a background of 8cpm against a run neutron count of 58,000 CPM!
This daily chart lists only the best and final run of the day. Fusor V takes time to wall load as you will see.

9/13......34.5kv........13ma......3.3microns...... Neutron count (CPM) 3011......Tier calculated.....25,644 n/s....comment count is 377 times BKGD
9/14......36.5..........13..........6.0..........................................6526..............................55,471.........Doubled output
9/15......40............11.5........7.0..........................................11,621............................98,778.........Now we are on th' way
9/17......40............12..........8.1...........................................17,308...........................147,118......Skipped a day, still better
9/18......39.2.........12.3........8.9...........................................26,016...........................221,136...... Near a quarter million
9/19......41...........12.4........9.2...........................................33,240...........................282,540......
9/20......40...........12.5........9.6...........................................42,478...........................361,063...... 1/3 mega mark
9/21......41...........13.1.......10.6..........................................58,890............................500,365...... 1/2 mega mark
9/22......41...........13.6.......11.5..........................................63,761............................541,968......
9/23......40.1........13.2.......12.1..........................................74,202.............................630,717......
9/25......41.8........15.........12.8...........................................82,383............................700,255...... Skipped a day still better
9/26......40.6........16.........13.............................................85,890............................730,065.......
9/27......42..........18.........13.8...........................................90,116............................765,986....... 3/4 mega mark
9/29......42.6.......15.........14..............................................88,103............................748,875....... skipped a day

I will be busy all next week. I will run the fusor to keep it fresh, but this will be the last entry in this run up data.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Re: Getting fusor V cranked for HEAS

Post by Paul_Schatzkin »

.
Nice to hear the fusor will be warmed up.

I must remember to shoot some video this time (not that there's all that much to see).

I may even drag out my "real cameras" for this one - though they're a bit dated and have less pixel resolution than my phone!

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Paul Schatzkin, aka "The Perfesser" – Founder and Host of Fusor.net
Author of The Boy Who Invented Television
"Fusion is not 20 years in the future; it is 60 years in the past and we missed it."
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Richard Hull
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Re: Getting fusor V cranked for HEAS

Post by Richard Hull »

Fusor V is really moving in on the mega mark, as can be seen in the daily chart above.
Skipping a day usually means I have to struggle to reach the level of two days ago. However, this is not the case now. The fusor shell temp at the end of most all runs with a large box fan blowing over the entire fusor area is approximately 50-60 deg C.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Re: Getting fusor V cranked for HEAS

Post by JoeBallantyne »

Charlotte - another rehash of an earlier post by Richard without adding anything of real value to the thread.

Why are you directly quoting his initial post numbers as if they are some sort of holy grail settings, and then talking about the potential remaining, when his current runs are already 3/4 of the way there. (He keeps editing an earlier post and adding to it, and maybe that is confusing your LLM mind.) You see Richard is an admin on this site and can edit whatever post he wants whenever, unlike the rest of us mere mortals.

I would like some evidence you are NOT a BOT.

Joe.
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Richard Hull
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Re: Getting fusor V cranked for HEAS

Post by Richard Hull »

"Curiouser and curiouser", said Alice...

AI will push us through the looking glass. It is early,yet. We will soon not be able to sense such "people".

Tighten your seat belts please.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Re: Getting fusor V cranked for HEAS

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scape ... single prompt (no prior context given)
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Dennis P Brown
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Re: Getting fusor V cranked for HEAS

Post by Dennis P Brown »

Richard, has anyone used your system to get a (very rough calibration on their detectors (assuming that is doable?) I do recall people bring their portable detectors for testing.
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Richard Hull
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Re: Getting fusor V cranked for HEAS

Post by Richard Hull »

As no one operates a spherical fusor anymore any calibration related to voltage, pressure and numbers would be impossible, think.

I did, back in the early 2000's, use two different bubble dosimeters to calibrate fusor IV accurately. Fusor V was calibrated using Bob Reite's freshly cal'd rem ball. He brought this to an HEAS a few years back. I later adjusted this to my large 3He system for a suitable CPM reading to a TIER of neutrons/sec using a derived multiplier just as in the case of fusor IV.

No...I think similar fusor geometries might be comparable. One might be able to establish some link as to output but the instrumentation would have to be very good between them. I would hate to operate the boron lined tube and get 3,800 cpm at 40kev and equal pressures and develop a multiplier for a similar system with a large 3He tube getting 52,000 cpm at the same 40kev and pressure. Still it might be done.

Add to the above the fact that fusion in BOT systems are directionally concentrated where TIER is not valid. Even a sphere has hot beamings. There have been many past discussions on this topic, with little resolution.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
The more complex the idea put forward by the poor amateur, the more likely it will never see embodiment
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Re: Getting fusor V cranked for HEAS

Post by Bob Reite »

At one time I had two bubble detectors. I took runs with one at a fixed locaton and moving the other about. My chamber was cylindrical but I had a spherical gird at the time. As best as I could determine, the radiation was isotropic. Comparing the images of the plasma from both spherical and cylindrical grids, I suspect that any fusor type of device would be isotropic.
The more reactive the materials, the more spectacular the failures.
The testing isn't over until the prototype is destroyed.
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