Nuclear properties of selected transuranium element isotopes

Nuclear properties of selected transuranium element isotopes

Table
Nuclear properties of selected transuranium element isotopes
specific activity
name and mass principal decay mode half-life disintegrations per minute per microgram watts per gram*
neptunium-237 alpha 2.14(106) years 1565 2.07(10−5)
plutonium-238 alpha 87.74 years 3.8(107) 0.570
plutonium-239 alpha 2.411(104) years 1.38(105) 1.91
(10−3)**
plutonium-242 alpha 3.733(105) years 8.73(103) 1.13(10−4)
plutonium-244 alpha 8.08(107) years 39.1 4.93(10−7)
americium-241 alpha 432.2 years 7.6(106) 0.114
americium-243 alpha 7.37(103) years 4.4(105) 6.45(10−3)
curium-242 alpha 162.8 days 7.4(109) 122
curium-244 alpha 18.1 years 1.80(108) 2.83
curium-248 alpha 3.4(105) years 9.4(103) 5.32(10−4)
berkelium-249 beta (minus) 320 days 3.6(109) 0.358
californium-249 alpha 351 years 9.1(106) 0.152
californium-252 alpha 2.645 years 1.2(109) 39
einsteinium-253 alpha 20.47 days 5.6(1010) 1,000
fermium-257 alpha 100.5 days 1.1(1010) 200**
mendelevium-256 electron capture 78.1 minutes
mendelevium-258 alpha 51.5 days
nobelium-259 alpha 58 minutes
lawrencium-260 alpha 180 seconds
element 104-261 alpha 65 seconds
element 105-262 alpha 34 seconds
element 106-265 alpha 5–10 seconds
*Thermal power output.
**Indicates an approximate value.
See as table:

* * *


Universalium. 2010.

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