. Elementary and dental radiography / by Howard Riley Raper . n, which wires may be made of any desiredlength and so the operator may stand as far away from his tube andmachine as the size of his room will permit. Also the controls may bemounted on the X-ray machines and, by means of an overhead wiringsystem (Fig. 361), the tube removed any desired distance from themachine. The operator should not only make it a rule to stand as far awayfrom the tube as possible while it is in operation, but he should alwayssee to it that the active hemisphere of the tube presents azvay from him,and incidental
. Elementary and dental radiography / by Howard Riley Raper . n, which wires may be made of any desiredlength and so the operator may stand as far away from his tube andmachine as the size of his room will permit. Also the controls may bemounted on the X-ray machines and, by means of an overhead wiringsystem (Fig. 361), the tube removed any desired distance from themachine. The operator should not only make it a rule to stand as far awayfrom the tube as possible while it is in operation, but he should alwayssee to it that the active hemisphere of the tube presents azvay from him,and incidentally I may say also away from his supplies of films andplates. Figure 83 shows a protection cover for the top of lead glass wish to modify the remarks on page 278 referringAlopecia. to the possibility of baldness being produced in oper- ators due to the continuous small dose of X-rays theyunavoidably take. Recent experiences and observations lead me to believe that X-rayoperators not infrequently lose hair due to the action of the X-rays. 42l APPENDIX. Fig. 468. A movable pedestal with controls mounted on it. THE DANGER OF THE X-RAYS 429 Figure 469A shows alopecia in a patient following radiographic examination of the frontal sinuses and antra. Figure 469B is the samecase about three months later showing a new growth of hair. I know so little of the history of this case I shall not attempt to giveit further than to say that there was never any dermatitis. I shall instead give the history of a similar case encountered in ray1 >\vn practice ; of which unfortunately I do not have photographs. Patient:
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