SCANNING LASER POSITIONER FOR X-RADIATION Russian patent published in 2006 - IPC H05G1/02 

FIELD: positioning radiator with respect to object.

SUBSTANCE: additionally introduced in positioner is rotor in the form of hollow cylinder revolving at frequency f ≥ 20 Hz whose axis of revolution is aligned with laser axis; rotor is disposed between first reflector and laser; optical raster in the form of combination of transparent and nontransparent bars of width t and height H is set on rotor butt-end disposed closer to laser; bar width is chosen from condition t = λ/sin(α/2, where λ is laser beam wavelength; α is X-radiator ray angle; bar height is chosen from relation H ≤ d, where d is laser beam diameter; mounted on other end of rotor is mask with central hole and two symmetrically disposed holes spaced apart through distance D; rotor length B on laser axis is found from expression B=kd/tg(α/2), where k = 1 - 2 is process coefficient and diametric line connecting centers of mask holes is perpendicular to direction of raster bars; distance A between raster and center of first reflector along lather axis equals distance from this center to X-ray tube focus on X-ray beam axis. Such positioner enables X-raying of object area as well as determination of center of this area.

EFFECT: enlarged functional capabilities and facilitated determination of distance from radiator to object.

1 cl, 4 dwg