Monday 5 May 2014

Hazardous Radioactive Diamond

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A bit of a mystery with this article from the Winter 1958-59 edition of "Gems & Gemmology." What is radium-X ?
So, looking for an isotope with a half life of 12.5 years in the radium decay series -
by Tosaka

There isn't anything with that half life. It's a mistake and they mean lead 210, with a half life shown above as 22.3 years. Its historic name is radium D, not radium X. Wikipedia says the half life of Pb210 is 22.2 years. This Stanford RSDS states 20.4 years. Then there's 21.4+/-0.5 years found by Eckelmann et al, this 1960 work published in the Physical Review - "Half-Life of Pb210"

Whatever the half life, the actual damage to the ring finger wouldn't be caused by lead 210 decay, but rather the 1.16 MeV betas produced by its daughter, bismuth 210.

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Unrelated to this post, below is an example of
eclectic science esoterica 

Lavoisier Lab 1775
photo Jorge Royan

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WARNING - Many subjects outlined within this site are extremely dangerous and are provided here for information only. Please don`t experiment with high voltages or chemicals unless you are fully conversant with safe laboratory practices. No liability will be accepted for death, injury or damage arising from experimentation using any information or materials supplied.