Nuclide reference

Pu-236 — Plutonium-236

Pu-236 की half-life 2.858 years है। मुख्य decay mode: α decay → U-232 (100%)।

Identification

तत्व
Plutonium (Pu)
Atomic number Z
94
Mass number A
236
State
Radioactive

Key quantities

Half-life
2.858 years
विशिष्ट गतिविधि
1.961e+13 Bq/g
Gamma constant Γ
—
परिवहन के लिए A1 / A2 (SSR-6)
30 TBq / 0.003 TBq
D-value (НП-067-24)
0.1 TBq

Decay modes

  • α decay → U-232 — 100 %
  • spontaneous fission — 8.2e-8 %

Main gamma lines

Energy, keVYield, %
17.1131 · X-ray line5.426
13.6085 · X-ray line4.987
47.570.065
108.950.0225
166.090.000735
643.870.000225
515.580.000163
563.190.000114

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

Alpha and beta particles

RadiationEnergy, keVYield, %
α5,767.569.1
5,720.930.8
5,613.70.23

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.

Plutonium-236 (Pu-236) — reference data

What is in the card

This card gathers the key data of radionuclide Pu-236 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 Pu-236 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.