
Proceedings Paper
Fundamental studies for the high-intensity long-duration flash x-ray generator for biomedical radiographyFormat | Member Price | Non-Member Price |
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Paper Abstract
The fundamental studies for the repetitive high-intensity microsecond x-ray
generator utilizing a cold cathode tetrode are described. This generator consisted
of the following essential components: a constant high-voltage power supply, an
energy storage condenser of 500nF, an main discharge condenser of lOnF, a turbo
molecular pump, a repetitive trigger device, and an x-ray tube. The condenser was
charged from 40 to 80kV, and the electric charges in the condenser were discharged
repetitively to an x-ray tube by a trigger device. The x-ray tube was of the
tetrode type which was connected to a turbo molecular pump and consisted of the
following major parts: a rod-shaped long anode tip made of tungsten, a cathode rod
made of graphite, a ring-shaped grid electrode, and a trigger electrode. The
trigger electrode was mounted at the center of the cathode electrode and was
insulated by a ceramic tube. The tube current was about 0. 4kA with a charged
voltage of 60kV. The x-ray pulse height and the time-integrated intensity increased
when the condenser charged voltage was increased, and the intensity was less than
2. OpC/kg at lm per pulse. The exposure times were about 2Ops, and the repetition
frequency was less than 50Hz.
Paper Details
Date Published: 1 April 1991
PDF: 8 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.24045
Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)
PDF: 8 pages
Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); doi: 10.1117/12.24045
Show Author Affiliations
Eiichi Sato, Iwate Medical Univ. (Japan)
Hiroshi Isobe, Iwate Medical Univ. (Japan)
Kei Takahashi, Iwate Medical Univ. (Japan)
Hiroshi Isobe, Iwate Medical Univ. (Japan)
Kei Takahashi, Iwate Medical Univ. (Japan)
Yoshiharu Tamakawa, Iwate Medical Univ. (Japan)
Toru Yanagisawa, Iwate Medical Univ. (Japan)
Toru Yanagisawa, Iwate Medical Univ. (Japan)
Published in SPIE Proceedings Vol. 1358:
19th Intl Congress on High-Speed Photography and Photonics
Peter W. W. Fuller, Editor(s)
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