Tin-126

Long-lived fission products
t^½(my)		Yield%	KeV	β
⁹⁹Tc	.211	6.0507	294
¹²⁶Sn	.230	.0236	4050	γ
⁷⁹Se	.295	.0508	151
⁹³Zr	1.53	6.2956	91	γ
¹³⁵Cs	2.3	6.3333	269
¹⁰⁷Pd	6.5	.1629	33
¹²⁹I	15.7	.6576	194	γ

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 californium, will produce it at higher yields.

Tin-126

See also