胸部撮影法の検討第8報 : 3相12パルス用ホトタイマーについて

概要

論文の詳細を見る
The history of a photo-timer is not so old, in Japan, they began to produce it since 1951,already it has passed 20 years more. The utility photo-timer is limited-furnished on the condencer charged equipments mostly, then recent years, a prectical uses of the photo-timer-furnished transformer equipments are becoming widespread gradually. Although, a saving of the exposing time is the most important problem on a chest photography, capacity of existing timer is not suitable for the photography. Because the case of a long time exposing, theree has not been so many troubles, but moving to a short time exposing, the density irregular should be more increased. Consequently, exception of foreign made IONTMAT, it is the present condition that most of the 3 phase X-ray exposing equipments do not furnish the X-ray value control system on itself. Therefore the reports and references of this system have been very few. So, in our dopartment, we experienced and tried to assemble the photo-timer for chest photography using TRIAC to glade up its accuracy, which is furnished on the equipment made by Siemens GMBH, Germany. Then we were able to obtain sufficient result, and this is our report of the experimentation.
公益社団法人日本放射線技術学会の論文
1973-03-31