Nuclide reference

Nb-97 — Niobium-97

Nb-97 की half-life 1.2017 h है। मुख्य decay mode: β⁻ decay → Mo-97 (100%)।

Identification

तत्व
Niobium (Nb)
Atomic number Z
41
Mass number A
97
State
Radioactive

Key quantities

Half-life
1.2017 h
विशिष्ट गतिविधि
9.948e+17 Bq/g
Gamma constant Γ
—
परिवहन के लिए A1 / A2 (SSR-6)
0.9 TBq / 0.6 TBq
D-value (НП-067-24)
0.1 TBq

Decay modes

  • β⁻ decay → Mo-97 — 100 %

Main gamma lines

Energy, keVYield, %
657.9498.23
1,024.41.09
1,268.620.1473
1,515.660.1218
719.530.09037
1,117.020.08546
17.479 · X-ray line0.07415
549.250.04912
857.460.04519
909.550.04027

Lines of the bare nuclide (ENDF/B-VIII.0), without daughter ingrowth.

Alpha and beta particles

RadiationEnergy, keVYield, %
β⁻, E max1,276.898.39
910.41.09
666.150.196
419.240.167

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.

Niobium-97 (Nb-97) — reference data

What is in the card

This card gathers the key data of radionuclide Nb-97 in one place: half-life, decay modes, main gamma lines, alpha and beta particle energies, gamma constant, specific activity and the D-value for source categorization. Decay and emission data are from ENDF/B-VIII.0; the D-value follows NP-067-24; the gamma constant is the ambient dose equivalent H*(10) at 1 m, computed from ICRP-107 spectra.

How to use the data

Half-life and specific activity let you recalculate the activity of a Nb-97 source to the delivery or disposal date — use the decay calculator. Gamma lines with yields identify the nuclide from a spectrum and pick the line for gamma spectrometry; the gamma constant Γ gives the dose rate at a distance, while the D-value and A1/A2 set the source category and the package type for transport.