水冷誘導電動による回転対陰極を有するX線管の試作

抄録

The object of this research is to obtain a high intensity X-ray tube adaptable for an electric apparatus of ordinary capacity (<30mA). In the newly designed X-ray tube, the anode is rotated by induction from a stator outside the tube, and the target is cooled with water through a medium of mercury. The tube has the following characteristics and uses:
1) The tube has no rotating vacuum seal.
2) The capacity of the tube is largest when the filament is set vertical. Therefore this setting is most favorable for obtaining the vertical, rectangular beam as used in Debye-Scherrer cameras. In that case the first slit is dispensable and consequently the time of exposure may be reduced to about 1/50 of that with ordinary fixed-target X-ray tubes.
3) The position of the focal spot is variable on the surface of the target cylinder, hence tithe lifetime of the target cylinder is much longer than that of the non-variable type.
4) The change of target may be made easily and in a short time.