Characteristic X-ray Generator Utilizing Angle Dependence of Bremsstrahlung X-ray Distribution
- 1 April 2006
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 45 (4R), 2845
- https://doi.org/10.1143/jjap.45.2845
Abstract
This generator consists of the following components: a constant high-voltage power supply, a filament power supply, a turbomolecular pump, and an X-ray tube. The X-ray tube is a demountable diode which is connected to the turbomolecular pump and consists of the following major devices: a molybdenum rod target, a tungsten hairpin cathode (filament), a focusing (Wehnelt) electrode, a polyethylene terephthalate X-ray window 0.25 mm in thickness, and a stainless-steel tube body. In the X-ray tube, the positive high voltage is applied to the anode (target) electrode, and the cathode is connected to the tube body (ground potential). In this experiment, the tube voltage applied was from 22 to 36 kV, and the tube current was regulated to within 100 µA by the filament temperature. The exposure time is controlled in order to obtain optimum X-ray intensity. The electron beams from the cathode are converged to the target by the focusing electrode, and clean K-series characteristic X-rays are produced through the focusing electrode without using a filter. The X-ray intensity was 26.6 µGy/s at 1.0 m from the X-ray source with a tube voltage of 30 kV and a tube current of 100 µA, and quasi-monochromatic radiography was performed using a computed radiography system.Keywords
This publication has 20 references indexed in Scilit:
- Monochromatic flash x-ray generator utilizing a disk-cathode silver tubeOptical Engineering, 2005
- Compact monochromatic flash x‐ray generator utilizing a disk‐cathode molybdenum tubeMedical Physics, 2004
- Quasi-Monochromatic Flash X-Ray Generator Utilizing Disk-Cathode Molybdenum TubeJapanese Journal of Applied Physics, 2004
- Sharp characteristic X-ray irradiation from weakly ionized linear plasmaJournal of Electron Spectroscopy and Related Phenomena, 2004
- Development of a two-dimensional imaging system for clinical applications of intravenous coronary angiography using intense synchrotron radiation produced by a multipole wigglerJournal of Synchrotron Radiation, 1998
- Phase–contrast X–ray computed tomography for observing biological soft tissuesNature Medicine, 1996
- Demonstration of a Discharge Pumped Table-Top Soft-X-Ray LaserPhysical Review Letters, 1994
- Fundamental Study on a Long-Duration Flash X-Ray Generator with a Surface-Discharge TriodeJapanese Journal of Applied Physics, 1994
- 10 kHz microsecond pulsed X-ray generator utilising a hot-cathode triode with variable durations for biomedical radiographyMedical & Biological Engineering & Computing, 1994
- Repetitive flash x-ray generator utilizing a simple diode with a new type of energy-selective functionReview of Scientific Instruments, 1990