Focusing Polycapillary Optics and Their Applications

<table>Measured transmission at 8 keV, as a function of length, for identical borosilicate polycapillary fibers with 17 <i>μ</i>m channels. The solid line is an exponential fit with decay length <svg height="5.5374999" id="M68" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 9.7250004 5.5374999" width="9.7250004" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,5.5375)">
<g transform="translate(72,-67.57)">
<text transform="matrix(1,0,0,-1,-71.95,67.62)">
<tspan style="font-size: 11.21px; " x="0" y="0">=</tspan>
</text>
</g>
</g>
</svg> 120 cm. </table>

X-Ray Optics and Instrumentation

fig26

Figure 26

Figure 26: Focusing Polycapillary Optics and Their Applications 