Talk:Caesium-137

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Biological Half-thing[edit]

"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)[reply]

How much cesium in the environment and in air?[edit]

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)[reply]

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)[reply]

Anything but metric units?[edit]

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)[reply]

Decay mode[edit]

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)[reply]