X-ray or gamma ray systems or devices – Source – Target
Patent
1991-05-28
1993-06-22
Porta, David P.
X-ray or gamma ray systems or devices
Source
Target
378144, 378125, H01J 3510
Patent
active
052221148
ABSTRACT:
An X-ray analysis apparatus has a charged particle beam generator, an X-ray generating target bombarded by the beam and a detector for X-rays from said target transmitted by a test piece. To improve the spatial resolution of the apparatus, the beam size is reduced at the target by locating the target outside a vacuum chamber of the beam generator by providing the target as a non-circular narrow track of X-ray generating material exposed at both surfaces of the target, and by providing the beam generator with a beam accelerator and means for reducing the beam diameter between the beam accelerator and the target.
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"Recent Medical Diagnostic System", 1988, pp. 86-89.
Kanamori, Takahiro and Shouji Kanata, "Cross-Sectional Imaging of Large and Dense Materials by High Energy X-ray CT Using Linear Accelerator" Journal of Nuclear Science and Technology (Japan) 26[9], Sep. 1989, pp. 826-832.
Izumi Shigeru
Kamata Shoji
Hitachi , Ltd.
Porta David P.
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