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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

Image confusion

I insist that the decay scheme image is misleading. The 85,1% is the TOTAL probability of a 0.662 photon to be born out of 1 Bq of Cs-137. The probability of Ba-137m to produce a 0.662 photon is 89.9% NOT 85.1% (see http://www.nndc.bnl.gov/chart/decaysearchdirect.jsp?nuc=137BA&unc=nds) —Preceding unsigned comment added by 212.46.23.10 (talk) 06:30, 30 March 2011 (UTC) That was posted by me, sorry, didnt log on (Theolos)[reply]

Confusion?

What does the following mean: "The photon energy of Ba-137m is 662 keV"? Is that to say that when Cs decays a photon is emitted and it has aforementioned energy? --Master Bob 03:36, 24 September 2007 (UTC)[reply]

well the caesium is a very poopy looking substance! —Preceding unsigned comment added by 71.233.38.145 (talk) 18:30, 13 October 2008 (UTC)[reply]

Sourcing

This article seems to lack adequate sourcing. Where did the information that 500 g of Caesium fell on Germany come from? — Preceding unsigned comment added by Ottawakismet (talk • contribs) 06:49, 22 March 2011 (UTC)[reply]

Cs-137 spectrum

This spectrum is inaccurate. The centroid channel of the 662keV-photopeak is at about 700keV while it should be at .. 662keV.

"10-15% resolution in NaI scintillators" refers to a single photopeak count. Not the photopeak's centroid.

I have 32 spectra with up to 4 different energy photopeaks (500keV-1.2keV), and fitting the centroid VS energy data (constant1*channel+constant2=energy) results in about 0.997 expected-energy to energy ratio.

Idinakis Methodios (talk) 10:43, 10 June 2010 (UTC)[reply]

Half life inconsistency

There are two tables/diagrams associated with this article (and with the main cesium article as well), that give different values for the half-life of Cs 137, namely 30.07a (in the diagram) and 30.23y (in the table). According to NIST (and CDC), the correct value is 30.17y. I'm hoping someone will fix the tables/diagrams. MeanStandev (talk) 22:06, 13 March 2011 (UTC)[reply]

Spelling

Google search results
	caesium	cesium
all	809,000	21,140,000
.uk	20,700	14,400
.ca	2,260	16,100
.au	13,100	4,500
.in	1,140	2,450
.ie	3,180	544
.nz	769	661
.fr	7,130	32,800
.jp	11,400	28,700

--JWB (talk) 04:22, 24 February 2010 (UTC)[reply]

Requested move

It has been proposed in this section that Caesium-137 be renamed and moved to Cesium-137.

A bot will list this discussion on the requested moves current discussions subpage within an hour of this tag being placed. The discussion may be closed 7 days after being opened, if consensus has been reached (see the closing instructions). Please base arguments on article title policy, and keep discussion succinct and civil.

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Links: current log • target log • direct move

Caesium-137 → Cesium-137 — 19:17, 4 April 2011 (UTC)

Disagree - unless you want to start this process for all the other articles that mention the word "caesium" in the title. Tony (talk) 08:30, 5 April 2011 (UTC)[reply]

Revision as of 23:32, 4 April 2011 edit Vegaswikian (talk \| contribs) 270,510 edits →Spelling: format ← Previous edit		Revision as of 08:30, 5 April 2011 edit undo Tonyr68uk (talk \| contribs) 938 edits m →Requested move Next edit →
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	[[Caesium-137]] → {{no redirect\|1=Cesium-137}} — 19:17, 4 April 2011 (UTC)		[[Caesium-137]] → {{no redirect\|1=Cesium-137}} — 19:17, 4 April 2011 (UTC)
			*Disagree - unless you want to start this process for all the other articles that mention the word "caesium" in the title. [[User:Tonyr68uk\|Tony]] ([[User talk:Tonyr68uk\|talk]]) 08:30, 5 April 2011 (UTC)