Nuclide reference
K-42 — Potassium-42
K-42 की half-life 12.36 h है। मुख्य decay mode: β⁻ decay → Ca-42 (100%)।
Identification
- तत्व
- Potassium (K)
- Atomic number Z
- 19
- Mass number A
- 42
- State
- Radioactive
Key quantities
- Half-life
- 12.36 h
- विशिष्ट गतिविधि
- 2.234e+17 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 0.2 TBq / 0.2 TBq
- D-value (НП-067-24)
- 0.2 TBq
Decay modes
- β⁻ decay → Ca-42 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 1,524.6 | 18.08 |
| 312.6 | 0.3363 |
| 899.7 | 0.05153 |
| 1,920.8 | 0.04122 |
| 1,021.2 | 0.02007 |
| 2,424.3 | 0.01989 |
| 692 | 0.003254 |
| 1,228 | 0.00235 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 3,525.5 | 81.9 |
| 2,000.9 | 17.64 | |
| 1,688.3 | 0.34 | |
| 79.95 | 0.07 |
For β⁻ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
Related calculators
इसी element के अन्य isotopes
Reference data vs computed valuesHalf-life, gamma lines and D-value are reference data (ENDF/B-VIII.0, НП-067-24).Gamma constant Γ 1 m पर H*(10) है, ICRP-107 spectra (NIST µ_en/ρ, ICRP-74 Table A.21) से गणना की गई, equilibrium में short-lived progeny सहित (जैसे Cs-137/Ba-137m, Ra-226 series); specific activity molar mass M ≈ mass number A का उपयोग करती है।