Nuclide reference
Pr-144 — Praseodymium-144
Pr-144 की half-life 17.28 min है। मुख्य decay mode: β⁻ decay → Nd-144 (100%)।
Identification
- तत्व
- Praseodymium (Pr)
- Atomic number Z
- 59
- Mass number A
- 144
- State
- Radioactive
Key quantities
- Half-life
- 17.28 min
- विशिष्ट गतिविधि
- 2.796e+18 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁻ decay → Nd-144 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 696.51 | 1.342 |
| 2,185.66 | 0.6938 |
| 1,489.16 | 0.2778 |
| 1,388.02 | 0.006723 |
| 814.1 | 0.003221 |
| 674.95 | 0.002952 |
| 864.45 | 0.002416 |
| 624.7 | 0.001127 |
| 1,978.82 | 0.0008723 |
| 1,376.27 | 0.0003892 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁻, E max | 2,997.5 | 97.9 |
| 811.83 | 1.05 | |
| 2,301 | 1.04 |
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।