LASER CENTRALISER FOR X-RAY EMITTER Russian patent published in 2009 - IPC H05G1/00 

FIELD: physics.

SUBSTANCE: invention can be used in aligning an X-ray emitter relative an object. The laser centraliser for an X-ray emitter has a housing in which there is a laser, a mirror made from organic glass, mounted at the intersection of the axes of the laser and X-ray beams and which directs the laser beam onto the object, which coincides with the axis of symmetry of the X-ray beam, which forms a point image on the image, which determines the centre of the illumination zone of the object with X-rays, an ultrasonic range finder, the axis of the radiation beam of which is parallel to the axis of the X-ray beam, a digital still camera, the axis of which is parallel to the axis of the X-ray beam, a lens, the optical axis of which coincides with the optical axis of the laser, and a circular matrix of semiconductor microlasers, mounted in front of the lens on its back focus side. The axis of symmetry of the matrix coincides with the axis of the laser, and a circular structure of laser points is formed on the object, the diametre of which corresponds to the diametre of the zone on the object, illuminated with X-rays. A laser range finder is also included, the optical axis of which is parallel to the axis of the X-ray beam and the axis of radiation of the ultrasonic range finder. Measuring bases of both range finders lie on the same level. The wavelength of the radiation of the laser range finder lies in the wavelength range, in which liquid medium over the object is transparent and has minimal light scattering.

EFFECT: provision for version of determining thickness of the layer of liquid over the object.

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