Measurement of distribution anisotropy of X-ray yield from a pyroelectric crystal surface

A technique for measuring the spatial distribution of X -rays generated by a pyroelectric source is developed and tested. Anisotropy in the spatial distribution of X -rays from the surface perpendicular to the pyroelectric axis of the lithium niobate crystal depending on the piezoelectric crystal axis orientation was detected. The result obtained shows the necessity of considering the effect of piezoelectric properties of pyroelectric crystals on X -ray generation processes.