What is the difference between a commonly used grid and an all-metal grid

Some people may ask, what is the difference between a commonly used grid and an all-metal grid? The internal spacers of the commonly used grids are made of non-metallic materials, and the internal spacers of the all-metal grids are made of metal materials, which have high strength and good moisture resistance. The filling materials of the grid are paper-based, aluminum-based and carbon-based. Paper-based grids are susceptible to moisture and are less used. Aluminum-based grids absorb less radiation and are economical. At present, most grids are filled with aluminum. There are also carbon-based grids. The production process is troublesome and the cost is high, but the ray transmittance is good, and the image quality is good. Although such grids are rare, they are still available.

Author：Lillian