. Practical radiography : a handbook for physicians, surgeons, and other users of X-rays . Fig. 60.—Connection of coil to mains using electrolytic interrupter. ing and controlling instruments, tubes and photographicaccessories, remains practically the same whatever be the size of the coil selected; moreover, a large coil per-mits of economy in manyways. We are enabledthereby to utilise a giventube for a much longerperiod, because if thevacuum has risen with ageand use, the large coil willbe able to force the second-ary discharge through itwhen on a smaller coil thetube will no longer respond;t
. Practical radiography : a handbook for physicians, surgeons, and other users of X-rays . Fig. 60.—Connection of coil to mains using electrolytic interrupter. ing and controlling instruments, tubes and photographicaccessories, remains practically the same whatever be the size of the coil selected; moreover, a large coil per-mits of economy in manyways. We are enabledthereby to utilise a giventube for a much longerperiod, because if thevacuum has risen with ageand use, the large coil willbe able to force the second-ary discharge through itwhen on a smaller coil thetube will no longer respond;the reduction in the timeof exposure which a largecoil permits, of coursesignifies a considerable sav-,ins both in the amount of. Fig. 61. energy taken from the source of the current, and also in Diagrams of Installations 119 the wear and tear of the apparatus, more especially the tube;lastly, this reduction in the time necessary for, say, thetaking of radiograms of the trunk cannot fail to appeal tothe busy practitioner, and also strongly impresses thepatient who is certain to consult that medical man whosetools are the most perfect and who gives his patient a
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectxrays, bookyear1901
