In order to estimate the public suffered personal dose equivalent, should be selected according to the population may be affected by the appropriate critical group, and selection of appropriate parameters and mathematical models to estimate the average effective dose equivalent radiation protection door how much this group a, this dose evaluated. Human activities sometimes cause natural ionizing radiation exposure to the public level change, thereby limiting the additional irradiation caused increase is necessary, it should be based on different types of sources and dose distribution to determine the level of specific investigations, management limit values ??and intervention levels. Lead protective glass construction technology will first lead glass protection window opening frame firmly fixed in the center, radiation protection, and then lead glass vertically parallel fixed in a protective frame, should not tilt, and finally shut with a protective coating thickness of less than 2cm. Protective frames, cover the surface with a thickness of 304 stainless steel plate 1mm technology, Hebei radiation protection door price, color coordinated with the overall decor, hospital radiation protection engineering professional manufacturers, with lead glass overlap more than 20mm. Housing should be smooth vertical and horizontal, level of consistency. Fixed-spaced coupling member (node) is less than 600 mm. To set up the joint member in both directions at the four corners of 150 mm from the window frame. Each coupling member may not be less than two screws. Install glass notch should be clean, soft liner material should lower notch. Inter lead glass and buckle according to the design should be firmly tight. Radiation protection lead glass, Hebei and Ericsson (online consultation), radiation protection provided by the Hebei Medical Engineering Co., Ericsson. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) Hebei Hengshui, a leader in medical device manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hebei Ericsson leadership with the staff warmly welcome all inquiries negotiations to create a better future Hebei Ericsson.