Laue Gamma-Ray Lenses for Space Astrophysics: Status and Prospects

<table>(a) Prototype tunable lens. (b) The evolution in time of the peak count rate when alternatively focusing 303 keV (circles) and 356 keV (crosses) <svg height="8.9250002" id="M232" style="vertical-align:-2.10374pt" version="1.1" viewbox="0 0 7.2375002 8.9250002" width="7.2375002" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,8.925)">
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<tspan style="font-size: 11.21px; " x="0" y="0">𝛾</tspan>
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</svg>-rays demonstrates the stability and reproducibility of the lens tuning.</table>

X-Ray Optics and Instrumentation

Laue Gamma-Ray Lenses for Space Astrophysics: Status and Prospects

Figure 22