Nuclide reference
Ir-188 — Iridium-188
Ir-188 की half-life 1.7292 d है। मुख्य decay mode: β⁺ decay / electron capture → Os-188 (100%)।
Identification
- तत्व
- Iridium (Ir)
- Atomic number Z
- 77
- Mass number A
- 188
- State
- Radioactive
Key quantities
- Half-life
- 1.7292 d
- विशिष्ट गतिविधि
- 1.486e+16 Bq/g
- Gamma constant Γ
- —
- D-value (НП-067-24)
- —
Decay modes
- β⁺ decay / electron capture → Os-188 — 100 %
Main gamma lines
| Energy, keV | Yield, % |
|---|---|
| 63 · X-ray line | 44.9 |
| 155.05 | 29.69 |
| 61.487 · X-ray line | 25.91 |
| 2,214.59 | 18.67 |
| 633.02 | 17.93 |
| 477.99 | 14.7 |
| 2,059.65 | 7.056 |
| 1,209.77 | 6.909 |
| 1,715.67 | 6.174 |
| 2,096.9 | 5.733 |
Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.
Alpha and beta particles
| Radiation | Energy, keV | Yield, % |
|---|---|---|
| β⁺, E max | 1,611 | 0.19 |
| 1,133 | 0.12 | |
| 1,288.1 | 0.011 |
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।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.