Calcium Ca Kernladungszahl Z=20 (p=20) |
| Ca(n+p) | n | Schwere Isotop | Schwere Kern | Häufig- keit | Spin/ Parität | Stabilität | Halbwerts- zeit [s] | Zerfalls- arten | Zerfalls- energie [eV] | Defekt- energie [eV] | Bindungs- energie [eV] | Wirkungsquer- schnitt [barn] |
|
1. | Ca40 | 20 | 39.96259096 | 39.95161936 | 96.941% | 0+ | radioakt. | 3E21a | 2p=100 | 0.194E6 | -34.8463E6 | 342.052E6 | 0.41#σ(n.γ); 2.5E3#σ(n.α) |
2. | Ca44 | 24 | 43.95548227 | 43.94451067 | 2.086% | 0+ | | stabil | | | -41.468E6 | 380.959E6 | 0.88#σ(n.γ) |
3. | Ca42 | 22 | 41.95861798 | 41.94764639 | 0.647% | 0+ | | stabil | | | -38.5471E6 | 361.896E6 | 0.68#σ(n.γ) |
4. | Ca48 | 28 | 47.95253432 | 47.94156272 | 0.187% | 0+ | radioakt. | 19E18a | β−=25; ββ=75 | 0.282E6(β−); 4.274E6(β−) | -44.214E6 | 415.991E6 | 1.1#σ(n.γ) |
5. | Ca43 | 23 | 42.95876731 | 42.94779572 | 0.135% | 7/2- | | stabil | | | -38.408E6 | 369.828E6 | 6.2#σ(n.γ) |
6. | Ca46 | 26 | 45.95369256 | 45.94272097 | 0.004% | 0+ | radioakt. | 2.8E15a | 2ß-=100 | 0.988E6 | -43.1351E6 | 398.769E6 | 0.74#σ(n.γ) |
7. | Ca45 | 25 | 44.95618759 | 44.94521599 | | 7/2- | radioakt. | 162.61d | ß-=100 | 0.256E6 | -40.811E6 | 388.374E6 | 15#σ(n.γ) |
8. | Ca41 | 21 | 40.96227802 | 40.95130642 | | 7/2- | radioakt. | 1.02E5a | K=100 | 0.421E6 | -35.1378E6 | 350.415E6 | 4#σ(n.γ) |
9. | Ca39 | 19 | 38.97072016 | 38.95974856 | | 3/2+ | radioakt. | 859.6E-3 | K/β+=100 | 6.533E6 | -27.274E6 | 326.409E6 | |
10. | Ca38 | 18 | 37.97631869 | 37.96534709 | | 0+ | radioakt. | 440E-3 | K/β+=100 | 6.741E6 | -22.059E6 | 313.122E6 | |
11. | Ca37 | 17 | 36.98587023 | 36.97489863 | | 3/2+ | radioakt. | 181.1E-3 | K/β+=18.9; Kp=82.1 | 11.638E6(K/β+); 9.78E6(Kp) | -13.1618E6 | 296.154E6 | |
12. | Ca36 | 16 | 35.99308745 | 35.98211585 | | 0+ | radioakt. | 102E-3 | K/β+=45.6704; Kp=54.329600 | 10.987E6(K/β+); 9.319E6(Kp) | -6.439E6 | 281.36E6 | |
13. | Ca35 | 15 | 35.00494045 | 34.99396885 | | 3/2+ | radioakt. | 25.7E-3 | K/β+=95.7; Kp=4.2 | 15.69E6(K/β+); 11.027E6(Kp) | 4.602E6 | 262.247E6 | |
14. | Ca34 | 14 | 34.01412033 | 34.00314873 | | 0+ | radioakt. | 35E-9 | p=100 | -0.899E6 | 13.153E6 | 245.625E6 | |
15. | Ca47 | 27 | 46.95454614 | 46.94357454 | | 7/2- | radioakt. | 4.536d | ß-=100 | 1.992E6 | -42.34E6 | 406.045E6 | 1.09#σ(n.γ) |
16. | Ca49 | 29 | 48.95567443 | 48.94470284 | | 3/2− | radioakt. | 523 | ß-=100 | 5.263E6 | -41.289E6 | 421.137E6 | |
17. | Ca50 | 30 | 49.957519 | 49.9465474 | | 0+ | radioakt. | 13.9 | ß-=100 | 4.966E6 | -39.5708E6 | 427.49E6 | |
18. | Ca51 | 31 | 50.96149916 | 50.95052756 | | 3/2− | radioakt. | 10.0 | ß-=100 | 7.355E6 | -35.8633E6 | 431.854E6 | |
19. | Ca52 | 32 | 51.96510015 | 51.95412855 | | 0+ | radioakt. | 4.6 | ß-=98; β−n=2 | 7.847E6(ß-); 2.638E6(β−n) | -32.509E6 | 436.571E6 | |
20. | Ca53 | 33 | 52.97005026 | 52.95907867 | | 3/2− | radioakt. | 90E-3 | β−=70; β−n=30 | 9.725E6(β−); 4.387E6(β−n) | -27.898E6 | 440.031E6 | |
21. | Ca54 | 34 | 53.97434981 | 53.96337821 | | 0+ | radioakt. | 300E-9 | ß-<100; β−n>0 | 10.326E6(ß-); 5.659E6(β−n) | -23.893E6 | 444.097E6 | |
22. | Ca55 | 35 | 54.98054953 | 54.96957793 | | 5/2− | radioakt. | 30E-3 | ß-=>0; β−n=>0 | 11.462E6(ß-); 8.029E6(β−n) | -18.118E6 | 446.394E6 | |
23. | Ca56 | 36 | 55.98557049 | 55.97459889 | | 0+ | radioakt. | 10E-3 | ß-=>0; β−n=>0 | 11.83E6(ß-); 8.068E6(β−n) | -13.441E6 | 449.788E6 | |