90-Th-228
( Th-228 is also called radiothorium )
- Atomic Mass: 228.0287313 ± 0.0000029 amu
- Excess Mass: 26763.075 ± 2.658 keV
- Binding Energy: 1743086.719 ± 2.676 keV
- Beta Decay Energy: B- -2147.646 ± 4.435 keV
- Spin: 0+
- Half life: 1.9131 Y ( 0.0470 % )
- Mode of decay: Alpha to Ra-224
- Mode of decay: 20O
- Branch ratio: 1E-11
- Decay energy: 5.520 MeV
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Possible parent nuclides:
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Beta from Ac-228
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Electron capture from Pa-228
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Alpha from U-232
Total Cross Section
- at 0.0253 eV = 133.0 b
- Maxwell avg. at 0.0253 eV = 120.0 b
- at 14 MeV = 5.628 b
- Fission spectrum avg. = 7.563 b
- g-factor = 1.0184
Elastic Scattering Cross Section
- at 0.0253 eV = 12.80 b
- Maxwell avg. at 0.0253 eV = 12.77 b
- at 14 MeV = 3.169 b
- Fission spectrum avg. = 5.433 b
- g-factor = 1.1259
Total Inelastic Cross Section
- at 14 MeV = 4.136 mb
- Fission spectrum avg. = 1.936 b
(n,2n) Cross Section
- at 14 MeV = 1.637 b
- Fission spectrum avg. = 7.688 mb
(n,3n) Cross Section
- at 14 MeV = 269.0 mb
- Fission spectrum avg. = 43.14 micro barn
Total Fission Cross Section
- at 0.0253 eV = 300.0 mb
- Maxwell avg. at 0.0253 eV = 265.9 mb
- Resonance integral = 1.024 b
- at 14 MeV = 549.0 mb
- Fission spectrum avg. = 105.9 mb
- g-factor = 1.0000
Radiative Capture Cross Section
- at 0.0253 eV = 119.9 b
- Maxwell avg. at 0.0253 eV = 106.6 b
- Resonance integral = 1169 b
- at 14 MeV = 2.403470e-10 b
- Fission spectrum avg. = 79.49 mb
- g-factor = 1.0035
Element Th