What about "Liquid Scintillation vs. Pancake GM"?

This area is for discussions involving any fusion related radiation metrology issues. Neutrons are the key signature of fusion, but other radiations are of interest to the amateur fusioneer as well.
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Roberto Ferrari
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What about "Liquid Scintillation vs. Pancake GM"?

Post by Roberto Ferrari » Wed Jun 13, 2018 3:01 pm

Hi
What happened with this promising thread?
Nobody continued that approach?
Roberto

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Richard Hull
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Re: What about "Liquid Scintillation vs. Pancake GM"?

Post by Richard Hull » Thu Jun 14, 2018 12:15 am

Liquid scintillation is very rare in the amateur community. Most scintillation work tends to be gamma related, although liquid scintillators tend to have a full sphere counting ability. For really weak sources, this is just perfect, provided you have little issue with dipping the radioactive source in the liquid. The near equivalent for beta detection is flowing gas proportional systems; equally rare among amateurs.

If someone actually does work in these areas, we are glad to hear about there efforts. Liquid scintillation fluids are hard to obtain and relatively expensive from the major sellers. A lucky surplus buy on 16 oz. of the "good stuff" would be nice.

I don't think there is a competition between liquid scintillators and pancake GM use. It really depends on what you need to measure and in what situation you find yourself.

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
Retired now...Doing only what I want and not what I should...every day is a saturday.

Roberto Ferrari
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Re: What about "Liquid Scintillation vs. Pancake GM"?

Post by Roberto Ferrari » Thu Jun 14, 2018 12:30 am

Hi Richard
I was recalling George Schmermund' experiments posted some years ago.
Nobody followed that line?
I understand it's not the easiest way but was curious.
Roberto

Rex Allers
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Re: What about "Liquid Scintillation vs. Pancake GM"?

Post by Rex Allers » Thu Jun 14, 2018 2:20 am

Perhaps the actual links make it more clear:

Liquid Scintillation vs. Pancake GM
George Schmermund Nov 11, 2011
viewtopic.php?f=13&t=6245

Liquid Scintillation Cell
George Schmermund Dec 06, 2011
viewtopic.php?f=13&t=6253&p=34697
Rex Allers

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Richard Hull
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Re: What about "Liquid Scintillation vs. Pancake GM"?

Post by Richard Hull » Thu Jun 14, 2018 9:35 am

I actually bought the little corrigator tool listed and shown in the Dec 6 posting back then. I have used it several times in other work. However, I just never got around to working with the scintillation system George noted. Sometimes stuff that seems cool just gets dropped in the push through life.
For me liquid scintillation efforts seemed to be one of them. Apparently, no one else picked up the effort to any report worthy degree, either.

Great re-reference URLs, Rex. There was a lot of posting on this with a lot of great ideas.

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
Retired now...Doing only what I want and not what I should...every day is a saturday.

Roberto Ferrari
Posts: 302
Joined: Tue Mar 02, 2004 5:21 pm
Real name: Roberto Ferrari
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Re: What about "Liquid Scintillation vs. Pancake GM"?

Post by Roberto Ferrari » Fri Jun 15, 2018 1:16 pm

Thanks Rex and Richard,

Yes, may be a cumbersome approach.
Roberto

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