FIELD: inspection of large-sized goods.
SUBSTANCE: radiographic inspection system has radiation source, detector system, multichannel signal processing system and transportation system for displacement of objects to be inspected. Radiation source has electron accelerator, conversion target and local radiation protecting aid made of metal units. Protection aid has two-position X-ray radiation collimator made in form of rotary metal cylinder provided with narrow slot to let X-ray radiation pass in the position of radiation and overlap the radiation at the calibration position. Signal processing system has means for calibrating each channel.
EFFECT: high penetration ability; improved efficiency of operation.
2 dwg
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|---|---|---|---|
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