Journal ArticleDOI
A Repetitional Pulsed X-Ray Diffractometer System
Satoshi Iida,Kiyoshi Sakaue,Hikaru Terauchi,Kanji Kubota,Toshiro Kojima,Yasusada Yamada,Toshio Kato,Nobuyuki Nakamura,Toshihiro Kunimatsu,Hiroshi Yoshimoto,Norihiko Ninomiya,Minoru Den +11 more
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TLDR
In this article, a pulsed X-ray source and a diffractometer used with this source have been constructed, which can be driven at a peak voltage of 300 kV and a peak anode current of 5 kA to give X-rays with a duration of about 40 ns at a repetition rate of up to 10 Hz.Abstract:
A pulsed X-ray source and a diffractometer used with this source have been constructed. The pulsed X-ray tube can be driven at a peak voltage of 300 kV and a peak anode current of 5 kA to give X-ray pulses with a duration of about 40 ns at a repetition rate of up to 10 Hz. The high voltage is generated by a Marx generator coupled to a pulse forming line. One X-ray pulse contains about 3×106 Cu Kα photons. Some preliminary observations of the diffraction patterns from an LiF crystal have been made using a multichannel photodiode array as a detector. The use of this apparatus as a time-resolved X-ray diffractometer are discussed in this report.read more
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Journal ArticleDOI
High-intensity flash x-ray apparatus for biomedical radiography
TL;DR: In this paper, a soft flash x-ray (FX) apparatus with a new type of FX tube for biomedical use is described, which may be used for condenser charging voltages of 50-90 kV and peak currents of 20-40 kA. The electric pulse width of the FX waveforms was almost constant and its value was about 0.3 μs.
Proceedings ArticleDOI
Flash Energy Subtraction Technique Using a Thin Metal Filter
Eiichi Sato,Hiroshi Isobe,Toru Yanagisawa,Yoshinori Aizawa,Yasuaki Yunokawa,Hiroyasu Arima,Fumihiko Hoshino +6 more
TL;DR: The flash energy subtraction technique, its principle of operation, and the control methods concerning the FX spectrum distribution are described in this paper, which is performed by using a high intensity soft flash x-ray (FX) generator having spectrum control functions, achieved with a subtraction function, a thin metal filter of copper, and two or three imaging plates.
Flash X-ray Techniques for Biomedical Radiography
Eiichi Sato,Hiroshi Isobe,Toshiaki Fujiyama,Sanae Sato,Eiko Tanifuji,Shokou Oikawa,Toru Yanagisawa,Haruo Obara,Yutaka Ohta,Shogo Suzuki,Hiroshi Seino,Hiroyasu Arima,Hisakatsu Endo,Yoshinori Aizawa,Yasuaki Yunokawa,Keiichiro Suzuki,Tatsuro Kurose,Fumihiko Hoshino +17 more
TL;DR: This paper presents a meta-analyses of the x-ray and CT scans performed at the Tohoku University Hospital during the second week of May 2015 to study the effects of radiation on the structure and function of the immune system.
Proceedings ArticleDOI
A Serial-Exposure Type of High Intensity Flash X-ray Generator Having Variable Energies
TL;DR: In this paper, the construction of a serial (triple) exposure type of high intensity flash x-ray (FX) generator having variable energies for biomedical radiography was described, which consisted of the following components: two high voltage generators (positive and negative), a voltage divider unit, two types of high and low voltage pulsers with maximum output voltages ranging from 50 to 200kV, small-sized trigger devices, a trigger delay unit, a high power gas diode, one turbo molecular pump, and two evacuated remote FX tubes, each of a different type
Proceedings ArticleDOI
Fundamental Studies For The Repetitional Pulsed X-Ray Generator Having Variable Spectra
TL;DR: In this paper, the fundamental studies for a repetitional (triple exposure) pulsed x-ray generator having variable spectra for biomedical imaging are described. But the generator was not designed for biomedical applications.