Focusing Polycapillary Optics and Their Applications

<table>Geometry for source scans. With the source at a distance <svg height="9.625" id="M7" style="vertical-align:-0.1125pt" version="1.1" viewbox="0 0 10.2125 9.625" width="10.2125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.625)">
<g transform="translate(72,-64.3)">
<text transform="matrix(1,0,0,-1,-71.95,64.46)">
<tspan style="font-size: 11.21px; " x="0" y="0">𝑆</tspan>
</text>
</g>
</g>
</svg> which is less than the input focal length <svg height="12.1" id="M8" style="vertical-align:-2.10374pt" version="1.1" viewbox="0 0 9.5874996 12.1" width="9.5874996" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,12.1)">
<g transform="translate(72,-62.32)">
<text transform="matrix(1,0,0,-1,-71.95,64.46)">
<tspan style="font-size: 11.21px; " x="0" y="0">𝑓</tspan>
</text>
</g>
</g>
</svg>, only a few channels of the optic transmit.</table>

X-Ray Optics and Instrumentation

Focusing Polycapillary Optics and Their Applications

Figure 5