Talk:Caesium-137

Biological Half-thing
"The biological half-life of caesium isotopes is short (about 100 days for Cs-137)"

I don't think the biological half-life would depend on the isotope, as all isotopes share the same chemical properties. --131.159.36.61
 * Shouldn't the term be biological half *time*? --Kayvan.walker

Nope, biological half-life is the appropriate terminology utilized within radiation protection field by the US NRC and ICRP — Preceding unsigned comment added by 108.255.57.146 (talk) 01:13, 6 August 2022 (UTC)

How much cesium in the environment and in air?
Any estimates for a total amount of uncontained cesium-137 in atmosphere, and in water+soil? Would it be few grams in air and few kilograms in soil and water? More? Less? 85.195.241.133 (talk) 21:05, 27 January 2023 (UTC)


 * I understand your question but please explain the parameters you are working off x Sean 82.17.71.122 (talk) 23:18, 2 June 2023 (UTC)

Anything but metric units?
The image on this page captioned "A sealed caesium-137 radioactive source" offers no indication of what scale the rule adjacent to the source indicates. Feet, inches, olympic washing machines? A statement of scale would improve things. 125.168.39.55 (talk) 12:39, 20 July 2023 (UTC)


 * It's inches, as noted by the 1/2, 1/4, and 1/8 markings. Rickane58 (talk) 03:59, 2 June 2024 (UTC)

Decay mode
The properties box contradicts the prose text. The box lists two decay modes, one beta, one gamma. The text clearly states that the gamma radiation comes from Ba-137m. That would mean the listed gamma decay mode is none of Ce-137. A mistake in the text is also possible, though. What is correct? WikiPidi (talk) 16:03, 29 August 2023 (UTC)