Tag Archives: energy

☢ Radioactive Tritium Gun Sight – Tested! ☢

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☢☢☢ Read Details ☢☢☢
A Glock radioactive gun sight is tested to determine how radioactive it might be!

X-Ray Spectrum of Tritium: http://anti-proton.com/tritium2.png
X-Ray Spectrum of Gun Sight: http://anti-proton.com/tritium_gunsight.png

Are Exempt Quantity Nuclear Check Sources Dangerous?

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I am not a doctor, nor a physicist, nor any other qualified person to discuss radiation safety for others. I am merely explaining my own risks using my own sources. Keep that in mind.

Cancer Risk

Cancer occurs when cells in the body are damaged in such a way that they their genetic code is altered allowing them to uncontrollably reproduce. This damage can come from the environment and from errors in how DNA is rewritten.

Current Scientific Consensus (what the majority of scientists agree upon based upon their research and data):

1. Cancer risk rises with respect to dose.
2. There is no dose rate where the risk of cancer (from the dose) is zero.
3. Determining risks from doses less than 100 mSv is statistically difficult.

December, 2008. Williams D. Radiation carcinogenesis: lessons from Chernobyl. Accessed online January, 23 2015 at http://www.ncbi.nlm.nih.gov/pubmed/19956182

The dose of a dental x-ray 5 μSv
The majority of small check sources are less than 10 μSv/hr
The dose of chest x-ray averages 100 μSv
The dose of a CT chest scan averages 7000 μSv
The dose of a CT chest scan averages 4,000,000 μSv

Accessed online January, 20 2015 at http://hps.org/documents/Medical_Exposures_Fact_Sheet.pdf

What are the risks of cancer from any source?

Males
Risk of developing 1 in 2
Risk of dying from 1 in 4

Females
Risk of developing 1 in 3
Risk of dying from 1 in 5

September 24, 2014. Lifetime Risk of Developing or Dying From Cancer. Accessed online January, 23 2015 at http://www.cancer.org/cancer/cancerbasics/lifetime-probability-of-developing-or-dying-from-cancer

Final conclusion:

A third to half of us will get cancer in our lives. My sources are only a VERY tiny contributor to my risk.

Statistically Valid Detections

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The basic idea comes from z-score * sqrt(2*background)

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On a recent business trip, I found an airplane at an airplane museum with what appears to be DU. This is not uncommon in airplanes.

Peaks found:
Thorium 234 63.29 keV
Thorium 234 92.38 keV
Thorium 234 92.8 keV
Protactinium 234m 766.36 keV
Protactinium 234m 1001.03 keV

Half Lives of Detected Isotopes (secular equillibrium with U238):
Thorium 234 t0.5 = 24.1 Days
Protactinium 234m t0.5 = 70.2 seconds

Unknown peaks (likely from natural uranium present in the concrete below the aircraft)
162.5 keV Unknown
176.3 keV (186.1 keV) – Possibly from Ra226
231.5 keV (241.98 keV) – Possibly from Pb214
307.3 keV (295.21 keV) – Possibly from Pb214
355.6 keV (351.92 keV) – Possibly from Pb214

Radiation at Six Miles Up!!! – Gamma Spectroscopy in an Airplane!

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I noticed that at ground level, the dose rate was 1 or 2 uSv/hr, but after take off it dropped!!! From 1000 feet (eyeballed) to about 5,000 feet it read 0 uSv/hr on the Poli (1 or 2 CPS, max!). This was due to being too far from the ground radiation (NORM), but too low to pick up lots of background cosmic rays.

My Polimaster misses most cosmic rays and mostly picks up mostly uranium, thorium, potassium, and bremsstrahlung radiation. Neat!

By the time I hit about 15,000 feet the dose rate was rising again. By 33,000 feet the dose rate was at its peak of about 0.5 uSv/hr. I know from the spectrum that most of my dose was from high energy particles. This means my Poli misses most of this dose. lol

Ironically, the plane was probably the source of most of my low level energy dose due to high energy particles striking the hull.

As for the x-ray machine, what could I do? I told the TSA guy what the detector was and he just stared at me… so oh well lol