Quasi-Monochromatic X-Ray Generator Utilizing Graphite Cathode Diode with Transmission-Type Molybdenum Target
スポンサーリンク
概要
- 論文の詳細を見る
An X-ray generator consists of a negative high-voltage power supply and a field-emission-type cold-cathode X-ray tube. The tube is a glass-enclosed diode utilizing a transmission-type molybdenum target with a thickness of 20 μm, a needle graphite (carbon) cathode, a glass tube body, and a 0.5-mm-thick beryllium window. The tube current decreases gradually with time. After aging for 30 minutes, the tube current was approximately 0.2 mA with a tube voltage of 25 kV, and the focal-spot dimensions were $2.2\times 1.6$ mm. Characteristic X-rays of molybdenum K-series were obtained after penetrating the molybdenum target and the beryllium window, and the K-absorption edge was observed clearly. The generator produced number of K photons was approximately $4\times 10^{6}$ photons/cm2$\cdot$s at 1.0 m from the source. The average photon energies of K$\alpha$ and K$\beta$ lines were 17.4 and 19.6 keV, respectively, and quasi-monochromatic radiography was performed using a computed radiography system.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-01-15
著者
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Hayasi Yasuomi
Department Applied Physics Faculty Of Engineering Tohoku University
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Tanaka Etsuro
Department Of Nutritional Science Faculty Of Applied Bio-science Tokyo University Of Agriculture
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Ido Hideaki
Department Of Applied Physics And Informatics Faculty Of Engineering Tohoku Gakuin University
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Sagae Michiaki
Department Of Physics Iwate Medical University
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Sato Shigehiro
Department Of Applied Chemistry And Biotechnology Faculty Of Engineering Niigata Institute Of Techno
-
Mori Hidezo
Department Of Bioscience Department Of Cardiovascular Surgery
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Takayama Kazuyoshi
Shock Wave Research Center Institute Of Fluid Science Tohoku University
-
Ichimaru Toshio
Department Of Dental Materials Science And Technology Iwate Medical University School Of Dentistry
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Kawai Toshiaki
Electron Tube Division #2 Hamamatsu Photonics Inc.
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Sato Eiichi
Department Of Information And Electronics Engineering Niigata Institute Of Technology
-
Sato Shigehiro
Department of Microbiology, School of Medicine, Iwate Medical University, 19-1 Uchimaru, Morioka 020-8505, Japan
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Hayasi Yasuomi
Department of Physics, Iwate Medical University, 3-16-1 Honchodori, Morioka 020-0015, Japan
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Sato Eiichi
Department of Physics, Iwate Medical University, 3-16-1 Honchodori, Morioka 020-0015, Japan
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Kawai Toshiaki
Electron Tube Division #2, Hamamatsu Photonics K.K., 314-5 Shimokanzo, Toyooka Village, Iwata-gun 438-0193, Japan
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Tanaka Etsuro
Department of Nutritional Science, Faculty of Applied Bio-science, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku 156-8502, Japan
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Sagae Michiaki
Department of Physics, Iwate Medical University, 3-16-1 Honchodori, Morioka 020-0015, Japan
-
Ichimaru Toshio
Department of Radiological Technology, School of Health Sciences, Hirosaki University, 66-1 Honcho, Hirosaki 036-8564, Japan
-
Ido Hideaki
Department of Applied Physics and Informatics, Faculty of Engineering, Tohoku Gakuin University, 1-13-1 Chuo, Tagajo 985-8537, Japan
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Sato Eiichi
Department of Anatomic Pathology, Tokyo Medical University
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