A Soller slit device is provided for collimation of high energy radiation, such as X-ray or EUV radiation, and has a low angle of divergence and a high transmission efficiency. First, a DTDSA is used to create an intermediate format for the data. Furthermore, temperature control is efficiently performed in the capillary. The relative axial movement that brings the opposed ends of the bow shape together results in radially extending the bow shape. The invention also refers to a corresponding optimizer for a compiler and a computer-readable storage medium storing optimizing code. This simplifies the input of an often frequented driving destination such as a place of residence.