18-Ar-40
- Atomic Mass: 39.9623831 ± 0.0000000 amu
- Excess Mass: -35039.890 ± 0.004 keV
- Binding Energy: 343810.441 ± 0.052 keV
- Beta Decay Energy: B- -1504.873 ± 0.271 keV
- Atomic Percent Abundance: 99.6003% 30
- Spin: 0+
- Stable Isotope
-
-
Possible parent nuclides:
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Beta from Cl-40
-
Electron capture from K-40
Total Cross Section
- at 0.0253 eV = 1.307 b
- Maxwell avg. at 0.0253 eV = 1.232 b
- at 14 MeV = 2.291 b
- Fission spectrum avg. = 2.992 b
- g-factor = 1.0640
Elastic Scattering Cross Section
- at 0.0253 eV = 647.0 mb
- Maxwell avg. at 0.0253 eV = 647.0 mb
- at 14 MeV = 788.0 mb
- Fission spectrum avg. = 2.567 b
- g-factor = 1.1284
Total Inelastic Cross Section
- at 14 MeV = 636.2 mb
- Fission spectrum avg. = 422.7 mb
(n,2n) Cross Section
- at 14 MeV = 835.7 mb
- Fission spectrum avg. = 304.1 micro barn
(n,3n) Cross Section
- Fission spectrum avg. = 0.05387 micro barn
(n,na) Cross Section
- at 14 MeV = 2.123 mb
- Fission spectrum avg. = 1.711 micro barn
(n,np) Cross Section
- at 14 MeV = 6.636 micro barn
- Fission spectrum avg. = 0.05176 micro barn
Radiative Capture Cross Section
- at 0.0253 eV = 660.0 mb
- Maxwell avg. at 0.0253 eV = 585.1 mb
- Resonance integral = 294.0 mb
- at 14 MeV = 346.4 micro barn
- Fission spectrum avg. = 1.013 mb
- g-factor = 1.0003
(n,p) Cross Section
- at 14 MeV = 14.99 mb
- Fission spectrum avg. = 19.52 micro barn
(n,d) Cross Section
- at 14 MeV = 1.949 mb
- Fission spectrum avg. = 0.3265 micro barn
(n,t) Cross Section
- at 14 MeV = 0.3541 micro barn
- Fission spectrum avg. = 0.001736 micro barn
(n,He3) Cross Section
- Fission spectrum avg. = 2.956750e-13 b
(n,alpha) Cross Section
- at 14 MeV = 11.08 mb
- Fission spectrum avg. = 204.0 micro barn
Element Ar