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Second of two identical grids fabricated by Thermo
Electron Tecomet in Woburn, MA.
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Finest, high-aspect-ratio X-ray collimator ever
made.
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Provides modulation to X-ray energies in excess of
100 keV.
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Allows imaging on HESSI with an angular resolution
of 2 arcseconds.
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Picture shows circular active area with fiducial and
mounting features in
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the integral rim.
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Direction of slits is revealed by the white bar at
45º resulting from light
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transmitted from below through the ~1º opening angle
of each slit.
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