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The top documents tagged [wolter telescopes]
XMM 10 Years in Orbit - ESA ESA’s X-ray observatory ready for the next decade
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Main detector types Multi Pixel Photon Counter (MPPC) and Charge Coupled Devices (CCDs) How does it work? 1. Photon hits a pixel producing electron hole
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The earliest recorded working telescopes were the refracting telescopes that appeared in the Netherlands in 1608. Their development is credited to three
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