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Tin-121m



Medium-lived
fission products
t½(y)Yield%KeVβ
155Eu4.76.0330252γ
85Kr10.76.2717687γ
113mCd14.1.0003316
90Sr28.95.75182826β
137Cs30.236.08991176γ
121mSn43.9.00003390γ
151Sm90.420377

Tin-121m is a radioisotope and nuclear isomer with a halflife of 43.9 years. In a normal thermal reactor, it has a very low fission product yield; thus, this isotope is not a significant contributor to nuclear waste.

Fast fission or fission of some heavier actinides will produce 121mSn at higher yields.

See also
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tin-121m". A list of authors is available in Wikipedia.
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