Nuclide reference
Sc-44 — Scandium-44
Sc-44 की half-life 3.97 h है। मुख्य decay mode: β⁺ decay / electron capture → Ca-44 (100%)।
Identification
- तत्व
- Scandium (Sc)
- Atomic number Z
- 21
- Mass number A
- 44
- State
- Radioactive
Key quantities
- Half-life
- 3.97 h
- विशिष्ट गतिविधि
- 6.638e+17 Bq/g
- Gamma constant Γ
- —
- परिवहन के लिए A1 / A2 (SSR-6)
- 0.5 TBq / 0.5 TBq
- D-value (НП-067-24)
- 0.03 TBq
Decay modes
- β⁺ decay / electron capture → Ca-44 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 510.999 · annihilation 511 keV | 188.5 |
| 1,157.02 | 99.9 |
| 1,499.46 | 0.9081 |
| 3.691 · X-ray line | 0.4796 |
| 3.688 · X-ray line | 0.2431 |
| 2,656.48 | 0.1119 |
| 2,144.3 | 0.002997 |
| 3,301.35 | 0.001399 |
| 2,150.84 | 0.001099 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁺, E max | 1,474.3 | 94.27 |
For β⁺ the endpoint (maximum) energy of the spectrum is given. ENDF/B-VIII.0.
Related calculators
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।K-series X-ray energies are from NIST SRD 128 (Deslattes et al., 2003): in ENDF/B-VIII.0 they are given to 1 % and shifted by up to 0.7 keV for heavy elements. L-series lines and all yields are ENDF/B-VIII.0.