Witherbee, William Daniel, 1875-, Remer, John, 1862- joint author · New York : Macmillan · leaf 56
The technic is comparatively simple. In theaverage case we use a seven-inch spark gap, fivemilliamperes, four minutes time, ten-inch distance,and three mm. of aluminum as filter. The patientlies face downward, head turned to the side, theposition and angle of the patient and tube corre-sponding… … Fig. 3.—Illustrates the use of the indicator in determin-the distance and direction of the ray, showing the area ex-posed and pos:tion of the patient. Routine factors withthis apparatus as follows: Seven inch spark gap, five milli-amperes, ten inch distance, four minutes time, with threemm. of…
X-rays · Radiography · X-Ray Therapy
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