Witherbee, William Daniel, 1875-, Remer, John, 1862- joint author · New York : Macmillan · leaf 52
5 X 9 X 7.7 min. = 2Y2 skin units = 10 H. 6 D In the photograph (Fig. 2) both areas of ery-thema are identical. No. 1 was produced by theunfiltered erythema dose; No. 2 by the filtered ery-thema dose. Biologically, to all appearances, the 40 THE CAUSE OF X-RAY BURNS 41 erythema produced in 33^… … Fig. 2. both instances; the only difference is the interpo-sition of 3 mm. of aluminum and about ten timeslonger exposure for the filtered dose than for theunfiltered. Here again the quantity of z-rayreaching the skin is materially lessened by the 42 X-RAY DOSAGE aluminum, thus making the enormous…
X-rays · Radiography · X-Ray Therapy
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