• Scanning the patient with very narrow (less than 2 mm) X-ray beam formed by the slot collimator;
• Using a highly sensitive linear array of semiconductor scintillation detectors as an X-ray image converter;
• Obtaining the patient's X-ray image by precise step-by-step scanning by means of a linear detector, the motion of which is synchronized with the scanning X-ray beam;
• Formation of a two-dimensional matrix of digital image, one of the coordinates of which (coinciding with the detector ruler) is determined by the number of elements in the detector and another - by the number of scanning steps (number of readings);
• Using special algorithms for forming, analyzing (processing) and saving high-quality digital images.

• Optimization of the number and size of X-ray sensitive elements;
• Optimization of the number of scanning steps;
• Projection magnification of X-ray image of the subject under examination with the variable scale of conversion.

The variable projection magnification is implemented by varying the patient's position between the X-ray source and receiver by means of a movable deck and allows for optimizing the image pixel size (set the maximum resolution) of the scanning receiver in accordance with the ratio of the linear dimensions of the subject under examination.

The digital format of the image is 1,536 pixels 1,536 pixels (2.36 million pixels) when using the geometrical magnification with the coefficient 2x is the optimal one from the standpoint of the quality/cost ratio.

• For the image formats from 220 220 mm up to 420 420 mm adopted as the standard ones in the radiography, the pixel size can be chosen to be optimum from the range from 140 m up to 270 m depending on the kind of examination;
• When performing various kinds of examinations (radiography of the thorax, skull, upper and lower extremities, pelvis, abdomen, etc.), the digital images are obtained with the optimum diagnostic quality in terms of its resolution;
• All kinds of examinations requiring the maximum resolution can be performed with the format of 220 220 mm (2.36 million pixels) and resolution of 140 m;
• The image format of 220 220 mm is optimum from both standpoints of minimum dose load and maximum resolution when performing the radiographic examinations of children;
• The 2.36-million pixel format of the image array is the optimum one in relation to the medical-purpose displays

Image Formats When Performing Various Kinds of Examinations

Adults/Children

	420x420 mm, 270µ m	220x220 mm, 140µm
Skull	+/-	+/+
Upper extremities	-/-	+/+
Thorax	+/-	-/+
Spine	420х210 mm/+	-/+
Pelvis	+/-	-/+
Lower extremities	-/-	+/+