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General Discussion / Re: The radioactive trace on the Dyatlov Pass
« Last post by Axelrod on May 05, 2024, 03:52:40 AM »XX: We do not know exactly what the radioactive material is, for example, Cs-137 (cesium)I am gradudte of Moscow Intitute of physics and technology, .
It so happened that on the first day of my first year, September 1, at 8 pm, I was writing a test in nuclear physics. but a was working as phogrammer in Multimedia Technologies. Therefore, I am familiar with this situation only from old memory.
When researching this situation, espacialy in https://en.wikipedia.org/wiki/Caesium-137 i see
Caesium-137 has a half-life of about 30.05 years.[1] About 94.6% decays by beta emission to a metastable nuclear isomer of barium: barium-137m (137mBa, Ba-137m). The remainder directly populates the ground state of 137Ba, which is stable. Barium-137m has a half-life of about 153 seconds, and is responsible for all of the gamma ray emissions in samples of 137Cs. Barium-137m decays to the ground state by emission of photons having energy 0.6617 MeV.[8] A total of 85.1% of 137Cs decay generates gamma ray emission in this manner.
Now lets' see https://dyatlovpass.com/case-files-371-377
Sheet 373
Alpha particles and gamma quants were not detected.
So, Cesium 137 is not suitable for this situation.