X-ray tube for analytic use
AssigneeTokyo Shibaura Electric Co., Ltd.
InventorsKenji Iwasaki, Tsuna Sawa, Sotaro Hijikata
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Abstract
An X-ray tube for analytic use comprises a bottomed cylindrical nozzle which is formed at the bottom with a slit having substantially the same shape and size as that of a focus formed on an electron-impact surface of an anode target. A pair of recesses are formed out in the backside surface of the anode. The nozzle is provided on its outer periphery with a pair of engaging members fitted into the recess, respectively, to prevent the rotation of the nozzle relative to the anode target. Consequently, the nozzle is detachably fitted to the anode and rotated substantially together with the anode thus resulting in a sure alignment of the slit of nozzle with the focus of target.
Claims9
An X-ray tube for analytic use which comprises an anode hermetically secured to one end of an air-sealed envelope and having a bottomed cylindrical target whose bottom is provided at its outer surface with an electron-impact surface on which electrons emitted from a cathode impinge, a cooler detachably fitted to an outer surface of the anode and having an upright pipe projected into the target and a fluid passage for cooling medium which flows from the tip end of the pipe thereinto and is released to a backside surface of the target corresponding to the electron-impact surface a bottomed cylindrical nozzle disposed between the pipe and target and having at its bottom part a slit having substantially the same shape and size as that of a focus formed on the electron-impact surface, and fitting means for detachably fitting the nozzle to the anode in a relation permitting the slit to be aligned with the focus.
Dependencies are inferred from the claim text.