High resolution, near real-time x-ray video imaging without image intensification
- Paultek Imaging, Grass Valley, CA (United States)
This paper discusses a type of x-ray camera designed to generate standard RS-170 video output that does not use x-ray or optical image intensifiers. Instead, it employs a very sensitive, very high resolution, CCD sensor which views an x-ray-to-light conversion screen directly through a high speed imaging lens. This new solid state TV camera, which will be described later, has very low readout noise plus unusually high gain which enables it to generate real-time video with incident flux levels typical of many inspection applications. Perhaps more important is an ability to integrate for multiple frame intervals on the chip followed by the output of a standard, RS-170 format video frame containing two balanced interlaced fields. In this integrating mode excellent quality images of low contrast objects can be obtained with only a few tenths of a second integrating intervals. The basic elements of this type of camera will be described and applications discussed where this approach appears to have important advantages over other methods in common use. Also included is an analytical/numerical discussion which supports some of the important points.
- OSTI ID:
- 215632
- Report Number(s):
- CONF-930722-; ISBN 0-8194-1258-9; TRN: IM9618%%316
- Resource Relation:
- Conference: Annual meeting of the Society of Photo-Optical Instrumentation Engineers (SPIE), San Diego, CA (United States), 11-16 Jul 1993; Other Information: PBD: 1993; Related Information: Is Part Of X-ray detector physics and applications II; Orphan, V.J. [ed.]; PB: 283 p.; Proceedings/SPIE, Volume 2009
- Country of Publication:
- United States
- Language:
- English
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