There are many cases of X-ray graphy as ordinary work, in which the X-ray beam is inclined for the both direction of longitude and latitude. When we interpret the explanation or the illustration of such a double angle X-ray graphy, we can not get only one construction but a few it is an undesirable. We studied about such a problem, and considered with the mechanism of X-ray tube rotation and the right X-ray beam centering.
We have studied about the double angle X-ray graphy. We know that we can not always operate an original double angle method, as it is, because of the different factors, which are with the patient, the apparatus, the distortion of X-ray image etc. For that time we must prepare the suitably modified equivalent technique to original. In this report we considered some modifier of Mayer method and Rhese position.
Automatic developing machine may be divided into broad two classes : one is the machine of roller type and another hanger type from the machinery point of view. The machinery difference of these machine leads to the difference in efficiency of the machine and effect on finishing X-ray photograph. In Osaka Prefectural medical Center of Adult Diseases, two machines of these two kinds have been used for these two years. The machinery of these machines was examined comparatively and the following conclusion was obtained from this examination. 1) In developing and washing, the machine of Roller type (X-OMAT-M4) is superior to one of hanger type (PROCOMAT RAPID-II). 2) The machine of Hanger type has two strong point : the care and repair is very simple and it excels in efficiency. 3) However, this machine of Hanger type is pretty expensive because the hanger which is pretty expensive has to be renewed very often, and it is apt to make a crack on film. 4) In conclusion, the machine of Roller type is better than one of Hanger type.
For thirty-five years (from 1931 to 1965) I have engaged in X-ray photographing, X-ray therapy and quantative measurement of X-ray in the following three manners : without any protector, with a shield as a protector, with perfect protection in a separate operator booth. During the period mentioned above, I measured the quantitity of hemoglobin, the number of erythrocyte and leucocyte in my blood, and observed my health condition. My conclusion is that X-ray injury can be to a considerable extent prevented by having an eager concern in protective apparatus.