The Extreme Ultraviolet Explorer (EUVE) satellite will conduct an all-sky survey over the wavelength range from 70 AA 760 AA using four grazing-incidence telescopes and seven microchannel-plate (MCP) detectors. The imaging photon-counting MCP detectors have active areas of 19.6 cm2. Photon arrival position is determined using a wedge-and-strip anode and associated pulse-encoding electronics. The imaging characteristics of the EUVE flight detectors are presented including image distortion, flat-field response and spatial differential nonlinearity. Also included is a detailed discussion of image distortions due to the detector mechanical assembly, the wedge-and-strip anode, and the electronics. Model predictions of these distortions are compared to preflight calibration images which show distortions less than 1.3% RMS of the detector diameter of 50 mm before correction. The plans for correcting these residual detector image distortions to less than 0.1% RMS are also presented
Imaging characteristics of the Extreme Ultraviolet Explorer microchannel plate detectors
Abbildende Eigenschaften des Explorer-Mikrokanalplatten-Detektors fuer den fernen Ultraviolett-Spektralbereich
1989
6 Seiten, 14 Quellen
Article (Journal)
English
BILDVERSTAERKER , LICHTEMPFAENGER , KANALPLATTENELEKTRONENVERVIELFACHER , FORSCHUNGSSATELLIT , TELESKOP , ASTRONOMIE , ELEKTRONISCHE SCHALTUNG , CODIERUNG , BILDQUALITAET , BILDAUFLOESUNG , KALIBRIEREN (ABGLEICHEN) , STOERSIGNAL , FEHLERKORREKTUR , ULTRAVIOLETTSTRAHLUNG , PHOTONENZAEHLER , BILDVERZERRUNG , ASTRONOMICAL INSTRUMENTS
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