2.5 Limitation of public exposure 2.5.1 Limitation Principle medical exposure to medical radiation dose-limiting system must comply with justification and optimization principles. Application of all therapeutic and diagnostic radiation, must have a certificate from the doctor thinks before implementation if necessary. Radiopharmaceuticals and radiation device used must comply with the relevant standards. Doctors engaged in medical exposure should receive professional training in radiation protection, and has made the competent authorities issued the certificate. DSA chamber used in electric sliding protective doors and electric flat open protective door, hospital radiation protective lead doors, electric sliding doors for the induction of protection 304 brushed stainless steel and aluminum track microcomputer control electric door, with open electric and manual mode with the extension of the application When the shutdown function, time, speed adjustable number. Requirements for the airtight door size of 1500 × 2100mm, radiation protection, 304 brushed stainless steel and aluminum track microcomputer control key parts of electric door motors, controllers must be professional manufacturers of complete sets of products, plug-door, using hands or feet induction means there is open, half-open function, with 10S delay off function; equipped with safety light, pinch, crash; radiation protection _ _ Hebei Ericsson manufacturer of radiation protection offered by Ericsson Hebei Medical Engineering Co. Radiation Protection Radiation Protection _ _ Hebei Ericsson manufacturer Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest Information, Contact: Li Hongli.