19-K-40
basic
n-XS summary
XS graphs
element
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19-potassium-40
- Atomic Mass: 39.9639987 +- 0.0000003 amu
- Excess Mass: -33535.016 +- 0.271 keV
- Binding Energy: 341523.214 +- 0.276 keV
- Beta Decay Energy: B- 1311.093 +- 0.118 keV
"The 1995 update to the atomic mass evaluation" by G.Audi and A.H.Wapstra,
Nuclear Physics A595 vol. 4 p.409-480, December 25, 1995.
- Atomic Percent Abundance: 0.0117%
- Spin: 4-
- Half life: 1.277E+9 years
- Mode of decay: Beta to Ca-40
- Branch ratio: 89.28 %
- Decay energy: 1.311 MeV
- Mode of decay: Electron capture to Ar-40
- Branch ratio: 10.72 %
- Decay energy: 1.505 MeV
R.R.Kinsey, et al.,The NUDAT/PCNUDAT Program for Nuclear Data,paper submitted to the 9 th International Symposium of Capture-Gamma_raySpectroscopy and Related Topics, Budapest, Hungary, Octover 1996.Data extracted from NUDAT database (Jan. 14/1999)
Magnetic Dipole Moments and Electric Quadrupole Moments
Ex(kev) | T1/2 | Spin | | m(nm) | | Q(b) | | Ref. Std. | Method | Reference |
0 | 1.28 x 109 y | 4- | | -1.298100(3) | | | | [2H] | N | ZNat 29a 1754 (74) |
| | | | -1.2982(4) | | | | | AB/D | PR 86 73 (52) |
| | | | | | -0.061(5) st | | [39K] | "Q, OL" | PR B6 757 (72)/PR A3 837 (71) |
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30 | 4.30 ns | 3- | | -1.29(9) | | | | [19F 197] | TDPAD | PL 49B 261 (74) |
2543 | 1 ns | 7+ | | +4.1(7) | | | | | IPAD/IMPAD | NP A264 151 (76) |
| | | | +4.4(11) | | | | [41K 1294] | RIGV | ZP A301 243 (81) |
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N. J. Stone, Table of Nuclear Magnetic Dipole and Electric Quadrupole Moments, to be published. 2000 Courtesy of T. Burrows at BNL/NNDC.
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