As a representative of high-density materials, tungsten alloy shielding components, with their high density, excellent radiation attenuation effect, heat resistance, strong mechanical strength, and environmental friendliness, are widely used in radiation protection applications in medical, industrial, nuclear engineering, and scientific research fields. Depending on their design shapes, tungsten alloy shielding components can be classified into plate-like shielding components, tubular shielding components, container-like shielding components, and complex geometric shielding components.
Plate-like shielding components exist in the form of flat plates or thin sheets, used for large-area radiation protection. The high density of tungsten alloys allows them to achieve equivalent shielding effects to lead at thinner thicknesses, reducing material usage and equipment weight, making them suitable for reactor shielding layers to block high-energy gamma rays. Advantages: Simple structure, low production cost, suitable for large-area, uniform shielding needs. Limitations: Single shape, not suitable for scenarios requiring complex geometry or dynamic adjustment.
Tubular shielding components are typically cylindrical or tube-like structures, used to encapsulate radioactive materials or guide radiation beams. The high density and heat resistance of tungsten alloys make them capable of providing efficient shielding at small thicknesses and suitable for high-temperature environments. Tubular shielding components are used in syringe shielding covers to protect medical personnel from radiation from radioactive isotopes. In particle accelerators, tubular shielding components guide particle beams, reducing scattering.
Container-like shielding components are closed or semi-closed structures designed to contain radioactive materials. The non-toxicity and high melting point of tungsten alloys allow for repeated use, making them suitable for radioactive isotope transport boxes or storage containers; used in shielding containers for nuclear waste or radioactive samples to prevent radiation leakage.
Collimators are a special type of shielding component that not only provide radiation protection but also limit and guide the direction and range of radiation beams. The good processability of tungsten alloys supports the manufacturing of complex geometric shapes, such as multi-leaf structures or pinhole structures. In the medical field: In intensity-modulated radiation therapy (IMRT), multi-leaf collimators dynamically adjust the radiation beam shape to target tumors and protect healthy tissues; in SPECT and CT imaging, collimators filter stray photons, improving image resolution.
