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Shad-o-Box 1024 X-Ray Camera

DATASHEET

Overview

The Shad-o-Box 1024 x-ray camera is a complete detection system for high-resolution radiation imaging. The heart of the Shad-o-Box camera is a two- dimensional photodiode array containing 1024 by 1024 pixels on 48 µm centers. A Gd2O2S scintillator screen, placed in direct contact with the photodiode array, converts incident x-ray photons to light, which in turn is detected by the photodiodes. A carbon-fiber window shields against ambient light and protects the sensitive electronics from accidental damage.The analog signal from the photodiode sensor is digitized to 12-bit (or optionally 14-bit) resolution in two parallel A/D channels, and then interleaved for maximum transmission speed across a high-speed parallel digital interface. The interface consists of a 68- pin mini-D (SCSI-3) receptacle and uses the LVDS (EIA- 644) signaling standard for low power consumption and transmission lengths up to 30m. Pixel clock, line enable and frame enable signals are available at the connector to facilitate acquiring the image data with a standard digital frame grabber. An RS-422 option is also available.The standard version of the Shad-o-Box 1024 camera delivers 4000:1 dynamic range (defined as the maximum signal divided by the read noise) at a maximum frame rate of 2.7 frames per second. A special high-gain version doubles the sensitivity of the analog front end, at the expense of a slight increase in noise and image non-uniformity. All models operate from a standard +6.5V desktop power supply and consume less than six Watts of power.

Key Features

• 50 mm (2”) square active area• Over one million pixels • 10 lp/mm (48 µm) resolution • 12 or 14-bit digital video output • Energy range from 10 to 160 kV • Small, convenient form factor • Standard frame grabber interface • Ready-to-run software and drivers

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Imaging Corporation ImagingCorporation
a division of DALSA Page 1