Nuclide reference

Nb-95 — Niobium-95

Nb-95 की half-life 34.991 d है। मुख्य decay mode: β⁻ decay → Mo-95 (100%)।

Identification

तत्व
Niobium (Nb)
Atomic number Z
41
Mass number A
95
State
Radioactive

Key quantities

Half-life
34.991 d
विशिष्ट गतिविधि
1.453e+15 Bq/g
Gamma constant Γ (H*(10))
0.1211 µSv·m²/(MBq·h)
Dose rate, 1 GBq at 1 m
≈ 121 µSv/h
परिवहन के लिए A1 / A2 (SSR-6)
1 TBq / 1 TBq
D-value (НП-067-24)
0.09 TBq

Decay modes

  • β⁻ decay → Mo-95 — 100 %

Main gamma lines

Energy, keVYield, %
765.80399.81
17.479 · X-ray line0.05409
17.374 · X-ray line0.02838
204.1160.028
561.880.015

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

Alpha and beta particles

RadiationEnergy, keVYield, %
β⁻, E max159.899.97
925.60.03

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।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.

Niobium-95 (Nb-95) — reference data

What is in the card

This card gathers the key data of radionuclide Nb-95 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-95 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.