Fluoroscopic introscope for non-destructive testing - has additional converter with output spectrum differing from main converter

The instrument is used for nondestructive testing of materials as well as for the medical treatment when checking the alignment of a gamma ray beams. The additional units of the intrascope ensures the alignment of the radiation beam to form the shadow image, and at the same time the information is fed to a TV system for enhanced safety. The radiation from the source passes the object with its coordinate markers to impinge the fluoroscopic image converter to provide a visible image. The shadow image is reflected by a mirror towards the photocathode of the optoelectronic converter for transmission to the closed-circuit TV system. The latter presents the shadow image, while the additional fluoroscopic converter (11) is parallel to the main fluoroscopic converter (9) provides an additional information display with its separate mirror (16) for the cine-camera recorder (34). It is expedient that the carrier substrate (14) for both fluoroscopic converters is a common layer of (Pb, W) or other material.