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- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f definition "The Extreme Ultraviolet Imaging Telescope (EIT) on the Solar Heliospheric Observatory (SOHO) is a normal-incidence, multilayer telescope. The EIT is a telescope of Ritchey-Chretien design that will obtain full-disk images in four narrow passbands with a eld of view 45 arcmin square and a spatial resolution limited only by the 2.6 arcsec pixel size of the CCD image sensor. The EIT uses four separate multilayers that are deposited on matched quadrants of both the primary and secondary mirrors of the telescope. The bandpasses are defined through interference effects arising in the multilayer coatings. A rotating mask allows only a single multilayer-coated quadrant of the telescope to be illuminated by the Sun at any time. All of the multilayers are fabricated from alternating layers of molybdenum and silicon. A paper describing the instrument (Delaboudinere et al. 1996, Solar Physics 162, 291) is available http://umbra.nascom.nasa.gov/eit/images/instrument_paper.pdf For more information,see: http://umbra.nascom.nasa.gov/eit/ Group: Instrument_Details Entry_ID: EIT Group: Instrument_Identification Instrument_Category: Solar/Space Observing Instruments Instrument_Class: Ultraviolet Instruments Short_Name: EIT Long_Name: Extreme Ultraviolet Imaging Telescope End_Group Group: Associated_Platforms Short_Name: SOHO End_Group Group: Spectral_Frequency_Information Wavelength_Keyword: Ultraviolet Number_Channels: 4 Spectral_Frequency_Coverage_Range: 17.1 - 30.4 nm Spectral_Frequency_Resolution: 2.5 arcsec End_Group Online_Resource: http://umbra.nascom.nasa.gov/eit/EIT.html#INSTRUMENT Sample_Image: http://umbra.nascom.nasa.gov/eit/images/EIT_instrument.gif Group: Instrument_Logistics Instrument_Start_Date: 1995-12-02 Instrument_Owner: NASA/GSFC End_Group End_Group" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f id "1655140" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_id 02c354fd-8e2d-4825-b786-aa4b0782d1d6 @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_id b2140059-b3ca-415c-b0a7-3e142783ffe8 @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_id b5e4912d-3224-4d7b-924c-a697677775c6 @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_label "Instruments" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_label "Solar/Space Observing Instruments" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f path_label "Ultraviolet Instruments" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f prefLabel "EIT" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f reference "" @default.
- 94e64b07-2c6e-4437-bcb3-91c329eb9b8f tag "Instruments" @default.
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