The radioactive waste decay box adopts a lead-steel composite shielding body, with a 316L nuclear-grade stainless steel liner (corrosion-resistant and radiation-resistant), a 150mm lead equivalent high-purity lead layer (density 11.34g/cm³) on the outside, and boron polyethylene neutron absorbing material filled between the layers. The box is formed by laser welding and combined with a fluororubber double-pass sealing ring, and has passed ISO 15848 certification (leakage rate <10⁻⁶ Pa·m³/s), ensuring absolute sealing.
Five major technical advantages
1. Extreme radiation shielding
γ-ray protection: 150mm lead equivalent shielding body has an attenuation rate of 1MeV γ-rays > 99.7% (IAEA verification)
Neutron absorption: Boron-containing interlayer makes the fast neutron slowing absorption efficiency reach 99.3% (Cf-252 source test)
Intelligent shielding door: hydraulic drive + lead-tungsten alloy insert, door gap leakage <0.1μSv/h
2. Intelligent decay management
Real-time monitoring system: integrated radiation dosimeter (accuracy ±2%), temperature and humidity sensor (±0.5℃)
AI decay algorithm: automatic calculation of nuclide half-life (such as Cs-137, Co-60), prediction error <3%
Data traceability: store 10 years of monitoring records, support NFC near-field communication data export
3. Efficient operation and maintenance design
Modular assembly: box units support fast assembly (300% faster than traditional concrete pools)
Accelerated decay: built-in air-cooled circulation system shortens the decay period of nuclides such as Sr-90 by 50%
Human-machine engineering: remote control robotic arm operation port reduces personnel exposure dose by 90%
4. Extreme environment tolerance
Corrosion resistance: 316L liner is resistant to nitric acid/hydrofluoric acid corrosion (concentration ≤8mol/L verification)
Temperature control range: -30℃~85℃ automatic constant temperature (nuclear power plant hot zone application verification)
Structural life: 60 years without replacement (anti-radiation aging coating protection)
5. Safety explosion-proof system
Explosion suppression design: box top explosion-proof membrane + argon inerting system (oxygen content <0.1%)
Seismic level: passed IEEE 344 certification, resistant to 9-magnitude earthquake
Leakage emergency: bottom zirconate adsorption pool, zero leakage of radioactive liquid
Core application scenarios
Nuclear power plant waste treatment
Spent fuel reprocessing plant: temporary storage of intermediate-level waste (ILW), capacity 2-10m³/unit
Reactor operation and maintenance area: collection of contaminated protective clothing/tools, decay cycle 30-180 days
Medical nuclear waste management
Nuclear medicine department of tertiary hospital: storage of iodine-131, technetium-99m pharmaceutical waste liquid (capacity 50-200L)
Radiotherapy center: temporary shielding storage of scrapped cobalt sources
Scientific research and industry
Nuclear technology laboratory: decay of plutonium-238 and americium-241 waste
Industrial flaw detection station: safety management of abandoned Ir-192 radioactive sources
Certification and quality assurance
International certification: IAEA SSR-5 standard, ISO 15848 sealing certification, ASME NQA-1 nuclear quality assurance system
National standard compliance: GB 18871-2002 "Basic Standards for Ionizing Radiation Protection and Radiation Source Safety"
Test report: shielding effectiveness test of China Institute of Atomic Energy, seismic verification of Shanghai Nuclear Engineering Institute
Warranty commitment: 10-year warranty for key components, lifelong technical support
The radioactive waste decay box uses military-grade sealing technology + AI control system to redefine the safety paradigm of nuclear waste temporary storage, and build a verifiable, traceable, zero-leakage decay solution for nuclear power, medical treatment, and scientific research.
