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neptunium
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This one also needs a pre amplifier ...I hate seing good equipment go to waste though..
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IrC
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So do I, and I kept this in hopes of one day using it but never looked into it due to other things always taking up my time. Not until I started
looking at your posts did I dig it out of storage and look into it. Even a good used preamp is around a thousand and then I need an MCA and so on. Too
much for a hobby unless I win the lottery.
Got any good numbers I can try?
"Science is the belief in the ignorance of the experts" Richard Feynman
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neptunium
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Ha!! Yeah sure let me try if i hit it first!
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Texium
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Thread Topped
6-1-2016 at 19:53 |
IrC
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Don't know if you have looked into the following links before. If not then maybe it is something interesting to study while waiting for those numbers.
http://www.gammaspectacular.com/software-downloads/theremino...
http://www.theremino.com/downloads/radioactivity
http://www.theremino.com/en/downloads/multimedia
http://www.theremino.com/technical/schematics
http://www.theremino.com/blog/gamma-spectrometry
"Science is the belief in the ignorance of the experts" Richard Feynman
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Velzee
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So, fifteen bucks, huh?
Check out the ScienceMadness Wiki: http://www.sciencemadness.org/smwiki/index.php/Main_Page
"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."
—Arthur Schopenhauer
"¡Vivá Cristo Rey!"
—Saint José Sánchez del Río |
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neptunium
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Naw don't worry about the charge
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neptunium
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Velzee send me his sample for a look at the gamma spectrum,
I`ve received it today and after a quick look it seem to be a weak uranium ore named coffinite.
I placed it in the spectrometer and obtained this very classic spectrum for Uranium with some Thorium isotopes a little over 10 minutes of acquisition
(633sec) gives a rate of 120c/s so given its geometry maybe a bit less than 300bq which is consistent with a similar size sample of coffinite I
analyzed earlier.
Ac228 is a daughter of Thorium 232 but is a lot more active than other isotopes from natural U238 and shows up better with a gamma spectrometer like
the one I use.
It is easy to see the comparison with a known sample of Uranium ore (coffinite) their is no mistake.
Although Velzee's sample might contain a little more Thorium .
If you have such samples in your backyard I would start digging immediately! there is some money to be made the Uranium ore samples sale pretty good
on ebay!
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chemrox
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The US west coast is being hit with isotopes from Fukushima. This is a potential concern for milk producers; Sr 90 for example. I would like to help
those producers who are diligent enough and share the concerns of their customers. Not all of them are. Witness the past reactions to hormone issues.
The ones that give a shit should be rewarded. I live and play near the coastal town of Tillamook. Nice airport.. good mushrooms.. Tillamook is a major
producer of dairy products. Consider collaborating with me on environmental services to the producers and cow farmers. And/or we could focus on the
customers. I know a health food seller that might be convinced to test hi products for rads. I would like to get beyond gamma counting and be able to
say what and how much. Then we could develop health care reports. We should explore whether there are certifications we could qualify for and
advertise.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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j_sum1
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Good thinking chemrox.
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neptunium
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Chemrox if you reside in the west coast and have such sample with a noticeable activity .may I suggest sending me one for gamma spectrum?
If I may I don't believe the Fukushima disaster has much of an impact on anything a few hot spots here and there are hardly cause for alarm. Besides,
radiological survey are conducted dayli by many different government and independent lab. If anything hit the fan trust that someone somewhere will
ring the bell much like the Flint water pollution. It may take a while but after 5 years still nothing....
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neptunium
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Quote: Originally posted by chemrox  | | The US west coast is being hit with isotopes from Fukushima. This is a potential concern for milk producers; Sr 90 for example. I would like to help
those producers who are diligent enough and share the concerns of their customers. Not all of them are. Witness the past reactions to hormone issues.
The ones that give a shit should be rewarded. I live and play near the coastal town of Tillamook. Nice airport.. good mushrooms.. Tillamook is a major
producer of dairy products. Consider collaborating with me on environmental services to the producers and cow farmers. And/or we could focus on the
customers. I know a health food seller that might be convinced to test hi products for rads. I would like to get beyond gamma counting and be able to
say what and how much. Then we could develop health care reports. We should explore whether there are certifications we could qualify for and
advertise. |
sounds good to me ! i can only detect gamma and x rays but i have been looking into fixing an alpha spectrometer. The sample prep is a bit tricky
though.
Also for Sr90 a beta scintillation spectrometer is necessary. i do not have one ...yet... but i would gladly accept money to set one up . I`ve always
wanted to do carbon dating...
As for most of us here time and money are badly needed!
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neptunium
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https://www.youtube.com/watch?v=cm_S0w13ovQ&t=3s
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neptunium
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Oh boy its been a while ! not much happened here I see...
Well i got around to analyze some Trinitite and rather than start a lengthy post i rather share my findings on a video...
enjoy!
https://www.youtube.com/watch?v=xZZyZODI-_8
[Edited on 7-8-2019 by neptunium]
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Fluorite
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WOa I think detecting elements is amazing! this is so helpful like you can know if 0% Cd Hg battery has any Cd Hg or you can also detect mercury in
Tuna! Cody's lab did a vid
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neptunium
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been working on more videos i hope you`ll enjoy some of my new equipment,
I have to apologize for my absence for so long...
I dont see much activity on here since i last commented so it looks like i have not missed much ..
Fluorite here is an improvement on the low level mercury in tuna i made ... yes it`s almost 2 years old now sorry.
https://www.youtube.com/watch?v=-LRfPt3txjc
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pantone159
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Awesome, I just watched the trinitite video. I want to get a gamma spectrometer someday but I haven't managed yet. I liked the suggestion by one
commenter to use single pieces for analysis so the composition is more consistent. But actually dating the event experimentally would be cool. Maybe
individual pieces would give a better date. Is there any possibility of detecting 96-Cm or higher? That would be extra cool as those elements are not
very collectible.
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neptunium
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Unfortunately I no longer work in this lab. But I have my own mass spec now
https://www.youtube.com/watch?v=RC-Kj7fhpNg
and part 2
https://www.youtube.com/watch?v=jwvoU3SLtYY&t=10s
and the lab i work at has the newest of the newest .. the 5000...which i recently check to mass 250 and i dont see why i could not get it a bit
higher.
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chemrox
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I need equipment capable of assessing fallout from Fukishima hitting the west coast of the US. Cheap is good. I'm looking for low concentrations of ?
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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neptunium
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| Quote: Originally posted by chemrox | | I need equipment capable of assessing fallout from Fukishima hitting the west coast of the US. Cheap is good. I'm looking for low concentrations of ?
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Cesium 137. peak at 662Kev but you won`t find much. maybe a fraction of becquerel and THAT requires expensive equipment .
Sr90 perhaps but about half is already gone and a different type of equipment (also not cheap) is needed. Either one, to be honest, after 11 years of
weather and radiological decay, If you find anything, that would be a fluke, incredible luck, vastly expensive project, an error, or a lie.
Just my opinion but of course i could be totally wrong
[Edited on 25-1-2022 by neptunium]
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