Making use of the Geiger-Muller counting-tube, were measured the ratio of intensity and the quality of the dispersed X-rays radiated chiefly from lead, aluminum, beeswax and veneer. The article reports the result of this measurement.
The author explains of comparison on X-ray absorption among various kinds of produce shadows (that is, Baruim, Moljodol, Sugiuron, Umbrathor, and etc.) which are necessary for radiographing, and also, of the relation between tube voltage, and degree of absorption and density.
I studied on difference of blackening degree of X-ray film by change of stimulating timer on intensifying screens. And I found that time specifity was variated by thickness and sensitivity of fluorescent substance and combination between back and front.