Tag Archives: Effect

My New CDV-700 Victoreen Model 6A Geiger Counter!

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Hello,

I have been sick for the past week and very busy too! This has stopped my video production. I will restart very soon!

I recently purchased this beautiful Civil Defense version 700, Victoreen Instrument Company, Model six A, Geiger counter from eBay for about $200 dollars.

Many units like it sell for less, but the seller reconditioned the unit and replaced many of the parts. The unit was in great condition and ready for anouther 50 years of use!!!

The seller was hughescoinsandcollectables

=)

Radioactive Elements Tested – Gamma Spectroscopy

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This is my tribute to Mr Wizard!

Please tell me what you think. I tested five radioactive elements and how you the gamma spectrums of each!
Category:

Radioactive Rain Water

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Below are my findings…

I came home today to find the very first drizzle of rain! I tested the rain and found that it appeared to be radioactive. My 32 new bars of lead were still drying from their ploy-coat, so I was down to my reserve 13 bars, barely enough for a clean scan, and I was totally unready.

My etiquette, scientifically speaking, was quite blown. Better luck next time I suppose.

Regardless, I got some good data and good readings as well. My instrument, a UCS30 gamma spectrometer uses a 38mm NaI(Tl) Scintillator, type 6S6P1.5VDC2, and is quite effective at detecting radiation. I fired it up and took a look into the paper towel swipe I had made.

My SE International Inspector EXP+ detected about 150-180 CPM from the water on the paper. My background for that unit, in that room, is about 38 CPM. These checks were “spot checks” and not accumulations averaged by time, which accounts for the variance.

NOTES and CAUTIONS:

(1)I am not an expert nor am I a professional scientist. I am a computer scientist.
(2)I make no claims as to the suppositions I make concerning the isotopes “found”.
(3)The levels found are quite small. None of these levels are very high.

The following energy photopeaks were found, given a full 1 hour test of the paper:

Peak Centroid
81.39 KeV [Normal Backscatter]

248.72 KeV – 243.941 KeV

306.17 KeV – 304.380 KeV

364.64 KeV – 362.302 KeV

618.65 KeV – 614.529 KeV

The peak is the highest point and the Centroid is the more accurate center of the photopeak, thanks to calculus.

Here is the link to the Data Report: http://anti-proton.com/dat/rain112111.pdf