. The principles and practice of roentgenological technique . aphic work. Under thesecircumstances, the fluoroscopic room shouldadjoin the machine-operating room and theexamination room. In some laboratories thevast majority of the examinations are fluoro-scopic, the plate being but supplementary, forpurposes of record, and this form of exam-ination is playing and is destined in the future 226 PROTECTION OF WORKERS to play an important part in the x-ray labora-tory examinations, and will undoubtedly di-minish the cost of maintenance. Finally, where a large number of examina-tions are to be mad
. The principles and practice of roentgenological technique . aphic work. Under thesecircumstances, the fluoroscopic room shouldadjoin the machine-operating room and theexamination room. In some laboratories thevast majority of the examinations are fluoro-scopic, the plate being but supplementary, forpurposes of record, and this form of exam-ination is playing and is destined in the future 226 PROTECTION OF WORKERS to play an important part in the x-ray labora-tory examinations, and will undoubtedly di-minish the cost of maintenance. Finally, where a large number of examina-tions are to be made, a waiting room for pa-tients becomes absolutely necessary, sinceotherwise considerable time is wasted waitingfor patients to arrive or be removed. This Protection There is one important consideration in theconstruction and planning of the varios-s roomsof an x-ray department and this is the protec-tion of the working staff, not only from con-stant exposure to the ray, but from the illeftects of insufficient ventilation and imperfectelectrical Fig. 309.—Fluoroscopy room showing vertical and horizontal apparatus and switchboard for their con-trol. The energizing apparatus is in another room. A dictagraph system permits the dictationof the results of the examination to a stenographer in a distant room. room should directly adjoin the examinationand fluoroscopic rooms. Thus an arrangement which covers therooms desired in a modern laboratory willhave a demonstration room, dark room, ma-chine-operating room, examination room,fluoroscopic room and a waiting room, all sodisposed as to be readily accessible and easilycontrolled and supervised. \entilation of the rooms, particularly thosein which the daylight is not permitted to enter,is important. The tired feeling of which x-rayworkers complain is due to the ozone liberatedfrom the air by the x-rays. Even with sufficient room and protection,the roentgenologist is still liable to consid-erable physical injury. He shoul
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