RADIONUCLIDE DATA SHEET [PLUTONIUM] Pu‐239
94protons
145neutrons
Half Life: 2144000 hours Radiation: Decay Mode: Alpha Gamma Constant: 0.338E‐4 mR/hr per 1 mCi at 30 cm Major Gammas:
Major Alpha: E(MeV) 5.157 5.144 5.106 E(MeV) 0.375 0.413 0.099 # per 100 dis 73.3 15.1 11.5 Max. Beta Range in Air : N/A cm Max. Beta Range in Water : N/A cm # per 100 Dis 1.55E‐3 1.47E‐3 1.22E‐3 Average gamma E =0 .309 MeV Intake Data (annual): Minimum Ingestion: 1 µCi equals 5 rem TEDE (WHOLE BODY) 0.8 µCi equals 50 rem CEDE (Bone Surf) Minimum Inhalation: 0.01 µCi equals 5 rem TEDE (WHOLE BODY) 0.006 µCi equals 50 rem CEDE (Bone Surf) Doses: Skin Dose: Reported for 1 µCi over 10 cm² of skin 0.519 mrad/hr (gamma dose) Point Source: 0 mrad/hr (beta dose) Disk Source: 0 mrad/hr (beta dose) Shielding Information: Maximum Range For Beta Tenth Value Thickness For Average Gamma: Plastic Aluminum Concrete Lead N/A cm N/A cm 0 cm 0 cm Detection information: Usable Detectors listed with estimate efficiencies Ludlum 3 w/ pancake probe at 1 cm % Liq. Scint. Counter % Ludlum 3 w/ NaI probe near surface % Gamma Counter % Containers Require Labeling When Greater Than Rooms Require Posting When There Is Greater Than Contamination Lasting More than 24 hrs Require NRC Notification At 0.06 µCi 0.001 μCi 0.01 µCi 0.03 µCi Action Quantities: Bench Top Quantity Must Be Less Than