Nuclide reference
Mn-54 — Manganese-54
Mn-54 की half-life 312.05 d है। मुख्य decay mode: β⁺ decay / electron capture → Cr-54 (100%)।
Identification
- तत्व
- Manganese (Mn)
- Atomic number Z
- 25
- Mass number A
- 54
- State
- Radioactive
Key quantities
- Half-life
- 312.05 d
- विशिष्ट गतिविधि
- 2.867e+14 Bq/g
- Gamma constant Γ (H*(10))
- 0.1302 µSv·m²/(MBq·h)
- Dose rate, 1 GBq at 1 m
- ≈ 130 µSv/h
- परिवहन के लिए A1 / A2 (SSR-6)
- 1 TBq / 1 TBq
- D-value (НП-067-24)
- 0.08 TBq
Decay modes
- β⁺ decay / electron capture → Cr-54 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 834.848 | 99.98 |
| 5.414 · X-ray line | 14.62 |
| 5.404 · X-ray line | 7.447 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
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।Dose rate example: point source, no shielding or scatter, Ḣ = Γ·A/r².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.