Capillary optics as an x-ray condensing lens: an alignment procedure

The procedure of capillary lens alignment is described in detail. The theoretical basis of capillary optics is given in the framework of a comparative analysis of monocapillary and polycapillary optics. The results of x-ray distribution scanning behind the capillary lens for various angle planes, together with the fitting results, are presented. A qualitative explanation is given for the discrepancy between the expected and observed divergences of x-ray beams transmitted by the capillary lens