Nuclide reference

Y-88 — Yttrium-88

Y-88 की half-life 106.63 d है। मुख्य decay mode: β⁺ decay / electron capture → Sr-88 (100%)।

Identification

तत्व
Yttrium (Y)
Atomic number Z
39
Mass number A
88
State
Radioactive

Key quantities

Half-life
106.63 d
विशिष्ट गतिविधि
5.149e+14 Bq/g
Gamma constant Γ (H*(10))
0.3613 µSv·m²/(MBq·h)
Dose rate, 1 GBq at 1 m
≈ 361 µSv/h
परिवहन के लिए A1 / A2 (SSR-6)
0.4 TBq / 0.4 TBq
D-value (НП-067-24)
0.03 TBq

Decay modes

  • β⁺ decay / electron capture → Sr-88 — 100 %

Main gamma lines

Energy, keVYield, %
1,836.0699.24
898.04293.68
14.165 · X-ray line34.11
14.098 · X-ray line17.77
2,7340.7145
510.999 · annihilation 511 keV0.42
850.60.0655
1,382.20.02084
3,219.70.007046

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

Alpha and beta particles

RadiationEnergy, keVYield, %
β⁺, E max764.520.21

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.

Yttrium-88 (Y-88) — reference data

What is in the card

This card gathers the key data of radionuclide Y-88 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 Y-88 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.