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fission products
135Cs2.3 6.3333269
107Pd6.5 .162933
129I15.7 .6576194γ

Tin-126 is a radioisotope and one of only 7 long-lived fission products. While tin-126's halflife of 230,000 years translates to a low specific activity that limits its radioactive hazard, its shortlived decay product, antimony-126, emits high-energy gamma radiation, making external exposure to tin-126 a potential concern.

126Sn is in the middle of the mass range for fission products. Thermal reactors, which make up almost all current nuclear power plants, produce it at a very low yield (such as 0.0236% or 0.06%), since slow neutrons almost always fission 235U or 239Pu into unequal halves. Fast fission in a fast reactor or nuclear weapon, or fission of some heavy minor actinides like californium, will produce it at higher yields.

See also

  • ANL factsheet
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tin-126". A list of authors is available in Wikipedia.
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