Radiation protection door is widely used in some medical places, mainly used in the import and export, machine room and mining area which need to block the ray. It is mainly used in radiation protection. It is generally used in shielding room, high and low energy linear accelerator room, proton treatment room, radiosurgery treatment room, CT image-guided intensity-modulated radiation therapy room, IMRT / IGRT room, etc. It plays an important role in protecting the health of workers and preventing unnecessary injury caused by the external spread of radiation.
In order to adapt to the design characteristics of medical examination room, the requirements of selecting radiation protection equipment also need to be targeted. For example, different types of radiation protection doors have great differences in structural design. Therefore, let's first understand the design forms of radiation protection doors
1： The structure and material of the door body are determined according to the power (kV) of the radiation machine and the size of the door opening. The hardware parts are imported special parts.
2： Push and pull the radiation proof lead door, and the opening direction is parallel to the wall
2： The opening direction of push-pull radiation proof lead door is parallel to the wall. The structure and material of the door body are determined by the power of the radiation machine (kV) and the size of the door opening. The door frame structure is different from the side door structure.
3： The electric radiation proof lead door is generally suitable for larger door body. Due to its heavy weight and hard manual opening, the electric opening mode is adopted. Open form can be divided into flat open type and moving type.
Lead glass contains lead, can effectively prevent radiation, so it is widely used in hospitals and other places with more radiation. Although lead glass contains lead oxide, its appearance is transparent. It's just a little yellow, but it's not obvious. The protective glass generally refers to the glass which can prevent X-ray, gamma ray or neutron. As the absorption capacity of materials to radioactive radiation increases with the increase of atomic number of metal elements, protective glass contains more heavy metal oxides. For example, the anti X-ray glass contains more PBO and Bao, while the anti gamma ray glass contains more PbO, WO3, Bi2O3, etc. Because of the penetration of gamma rays由于γ射線的穿透能力較X射線強得多，所以γ射線防護玻璃的比重和鉛當量較X射線防護玻璃高得多。
Because the penetration ability of gamma ray is much stronger than that of X-ray, the specific gravity and lead equivalent of γ - ray protective glass are much higher than that of X-ray protective glass.
The main performance of lead glass is clear and transparent in optical protection. A low optical quality protective glass plate with specified attenuation performance is used. Its attenuation performance is 0.22mmpb per millimeter. Medical lead glass surface coating, absolutely speaking, separated the metal surface and conditions, this maintenance effect can be called barrier effect.
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