高圧撮影装置に就いて

概要

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The method of X-Ray diagnosis utilizing over 100 kV has been revived in recentyears. The prinincipal characteristics of the high voltage are as follows : (1) To produce the same dosage-rate, a lower electrical and thermal load is required at higher voltage. (2) X-Rays produced with higher voltages have a greater penetrating power. (3) The radiation contrast between soft tissue and bones is in the case of high voltage radiography, less. (4) The scattered radiation of X-Rays passing through a body becomes greater with an increase in voltage. (5) The decrease in contrast due to scattered rodiation is kept down by means of high voltage grids or the Groedel technique. (6) Wide variations of thickness and density of the object to be radiographed are levelled off in high voltoge radiography. Therefore, The demand of the X-Ray apparatus for high voltoge radiography are increased. we describe our several X-Ray apparatus for high voltage radiography as follows : (1) X-Ray tubes and kenotrons. (2) KCD-J (Condenser Type). (3) KXO-12 (4) KXO-14 (5) KXO-20.
公益社団法人日本放射線技術学会の論文
1957-05-25