Call for interesting and unusual spectra.

Share your spectra and discuss their features here
Peter (vital1)
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Joined: 10 May 2015, 16:05
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Re: Call for interesting and unusual spectra.

Post by Peter (vital1) » 09 Nov 2017, 12:09

Steven,

You are very welcome to use any of these you find useful.

Scintillator detector test chart of a Thorium gas mantle.

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Here is a test of 34 grams of organic material, caught in a local water tank inlet filter. The main isotopes detected were Beryllium Be-7 and Lead Pb-210. Beryllium Be-7 can be created naturally in trace amounts by spallation in the upper atmosphere, by cosmic rays. Lead Pb-210 is the decay daughter of naturally occurring Radon-222 decay.

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Radon washout chart from a local rain event, this was captured on a paper towel swab off a car surface, after a storm had passed by in September 2012.

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Here is a resin encapsulated sample of black fungus like material collected after Fukushima from somewhere in the Minamisoma area of Japan. This test indicates the fungus was bio-accumulating Cesium.

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Uraninite sample Chart Spectra recorded with a copper liner. Uraninite is a Uranium rich mineral, it is most commonly known as pitchblende. It is very radioactive. It was used here to calibrate the equipment.

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Euxenite Y Chart this spectra was recorded in a lead shield chamber without a copper liner, hence the large secondary X-ray peak at approx 80 Kev.

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Radium clock dial chart This spectra was recorded in a lead shield chamber without a copper liner, or proper calibration, hence the large secondary X-ray peak at approx 80 keV. The chart is of half a Radium clock dial.

http://sccc.org.au/wp-content/uploads/2 ... B-68-7.jpg

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