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<p>beams and this compounds the problem. In principle the problem could be overcome by <a href="page.php?w=focus_%28optics%29">focusing</a> the beam, but this is not easy when dealing with X-rays and was previously not done except on <a href="page.php?w=synchrotron">synchrotron</a>s where large bent mirrors can be used. This is why most laboratory small angle devices rely on <a href="page.php?w=Collimated_beam">collimation</a> instead.Laboratory SAXS instruments can be divided into two main groups: point-collimation and line-collimation instruments:</p><p>
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