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Science Instruments: Gratings

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1. Low-Energy Grating (LETG) close-up
The gratings exploit Chandra's sharp mirror focus and matching detector resolution to produce high resolution X-ray spectroscopy.

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2. Low-Energy Grating (LETG) under construction
(from Peter Predehl)

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3. High-Energy Grating (HETG) under construction (1)

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4. HETG under construction (2)
(from Patrick Hindle, MIT)

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5. High- and Low-Energy Gratings
being integrated into optical bench.

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6. High- and Low-Energy Gratings
being integrated into optical bench.

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7. High- and Low-Energy Gratings
being integrated into optical bench.

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8. High- and Low-Energy Gratings
being integrated into optical bench.

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