90-Th-227
( Th-227 is also called radioactinum )
- Atomic Mass: 227.0276989 ± 0.0000030 amu
- Excess Mass: 25801.317 ± 2.825 keV
- Binding Energy: 1735977.154 ± 2.841 keV
- Beta Decay Energy: B- -1019.327 ± 7.532 keV
- Spin: (1/2+)
- Half life: 18.72 D ( 0.1068 % )
- Mode of decay: Alpha to Ra-223
-
-
Possible parent nuclides:
-
Beta from Ac-227
-
Electron capture from Pa-227
-
Alpha from U-231
Total Cross Section
- at 0.0253 eV = 1749 b
- Maxwell avg. at 0.0253 eV = 1558 b
- at 14 MeV = 5.621 b
- Fission spectrum avg. = 7.573 b
- g-factor = 1.0047
Elastic Scattering Cross Section
- at 0.0253 eV = 12.40 b
- Maxwell avg. at 0.0253 eV = 12.40 b
- at 14 MeV = 3.170 b
- Fission spectrum avg. = 5.201 b
- g-factor = 1.1284
Total Inelastic Cross Section
- at 14 MeV = 5.018 mb
- Fission spectrum avg. = 1.653 b
(n,2n) Cross Section
- at 14 MeV = 330.0 mb
- Fission spectrum avg. = 38.45 mb
(n,3n) Cross Section
- at 14 MeV = 65.61 mb
- Fission spectrum avg. = 16.10 micro barn
Total Fission Cross Section
- at 0.0253 eV = 202.0 b
- Maxwell avg. at 0.0253 eV = 179.0 b
- Resonance integral = 209.5 b
- at 14 MeV = 2.050 b
- Fission spectrum avg. = 479.8 mb
- g-factor = 1.0000
(n,4n) Cross Section
- Fission spectrum avg. = 0.006945 micro barn
Radiative Capture Cross Section
- at 0.0253 eV = 1535 b
- Maxwell avg. at 0.0253 eV = 1360 b
- Resonance integral = 1417 b
- at 14 MeV = 0.04992 micro barn
- Fission spectrum avg. = 192.0 mb
- g-factor = 1.0000
Element Th