An Oil-Cooled Flash X-Ray Tube For Biomedical Radiography

Eiichi Sato; Satoshi Kawasaki; Hiroshi Isobe; Toru Yanagisawa; Jutaro Takahashi; Yasuhisa Yasuda

doi:10.1117/12.948673

1 February 1989 An Oil-Cooled Flash X-Ray Tube For Biomedical Radiography

Eiichi Sato, Satoshi Kawasaki, Hiroshi Isobe, Toru Yanagisawa, Jutaro Takahashi, Yasuhisa Yasuda

Proceedings Volume 0981, High Speed Photography, Videography, and Photonics VI; (1989) https://doi.org/10.1117/12.948673
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

The construction and the applications of an oil-cooled flash x-ray tube to biomedical radiography are described. Generally, this tube was used for the repetitional flash x-ray generator for producing soft x-rays and consisted of the following major parts: a vacuum vessel made of stainless steel with a diameter of 80mm, a ring cathode made of molybdenum of 0.2mm thickness, a rod-shaped anode tip made of tungsten with a diameter of less than 3.0mm for obtaining the high intensity x-rays, an anode rod made of beryllium-copper alloy utilizing cooling fins, an internal x-ray output made of copper having a cooling mechanism, and an air-cooled heat exchanger. The anode tip was mounted on the anode rod and could easily be changed, and the cathode was attached to the internal output mouth of x-rays. The anode-cathode plane space was adjusted from the outside of the x-ray tube by rotating the x-ray diaphragm. The operating voltage was less than 150kV, and the maximum tube current was more than lOkA. The effective focal spot size primarily varied according to the diameter of anode tip and it ranged from 0.5 to 3.0mm in diameter. This tube was connected to two types of high-voltage pulsers: (a) a high voltage repetitional pulser achieved with a frequency control system of less than 20Hz, and (b) a Cockcroft circuit with a high-frequen-cy DC-AC inverter. Various radiographs were obtained by using this tube in conjunction with these pulsers.

Citation Download Citation

Eiichi Sato, Satoshi Kawasaki, Hiroshi Isobe, Toru Yanagisawa, Jutaro Takahashi, and Yasuhisa Yasuda "An Oil-Cooled Flash X-Ray Tube For Biomedical Radiography", Proc. SPIE 0981, High Speed Photography, Videography, and Photonics VI, (1 February 1989); https://doi.org/10.1117/12.948673

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