Tungsten alloy shielding containers have developed a relatively mature classification system according to structural form, application scenario, and containment method. The main common types include the following categories.
Fixed integral containers are standard configurations for hot cells and large waste repositories, typically employing near-net-shape thick-wall construction with replaceable sacrificial liners and multi-functional interfaces, emphasizing lifetime maintenance-free operation and maximum containment redundancy.
Portable quick-opening containers are widely used for nuclear medicine drug dispensing and therapeutic dose transport, with strict weight control, lids commonly featuring one-hand knob or clamp quick-opening mechanisms, and mirror-finished easy-decontamination surfaces balancing portability and frequent handling requirements.
Transport containers with double or multiple lids strictly comply with international regulations for radioactive material transport, possessing drop, fire, and immersion resistance, often equipped with shock-absorbing liners and status monitoring modules for inter-facility or intercontinental transfer.
Open-face directional collimation containers are dedicated to industrial radiography and scientific irradiation, featuring fully enclosed thick walls with only controllable collimation windows for applications requiring precise beam delivery.
Modular combination containers permit on-site assembly of different functional sections and inserts according to changing source terms, suitable for decommissioning decontamination and temporary storage with varying demands.
Micro medical containers and localized shielding inserts address syringe shielding, seed source storage, or equipment partial reinforcement, characterized by small volume and high precision, often used in combination with plastic or titanium alloys.
These types differ in material system (W-Ni-Fe or W-Ni-Cu), wall thickness gradient, and functional integration, collectively covering the full spectrum of practical needs from nuclear medicine to industrial irradiation and from routine operation to accident conditions.
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