Imaging characteristics of the extreme ultraviolet explorer microchannel plate detectors
The Extreme Ultraviolet Explorer (EUVE) satellite will conduct an all-sky survey over the wavelength range 70/sup 0/A to 760/sup 0/A using four grazing incidence telescopes and seven microchannel plate (MCP) detectors. The imaging photon counting MCP detectors have active areas of 19.6 cm/sup 2/. 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 will be a detailed discussion of the causes of image distortions due to the detector mechanical assembly, the wedge and strip anode and the electronics. Model predictions of these distortions will be compared to pre-flight calibration images which show distortions less than 1.3% rms of the detector diameter of 50mm before correction. The plans for correcting these residual detector image distortions to less than 0.1% rms are also presented.
- Research Organization:
- Space Sciences Lab., Univ. of California at Berkeley, CA (US)
- OSTI ID:
- 6331041
- Report Number(s):
- CONF-881103-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 36:1; Conference: IEEE nuclear science symposium, Orlando, FL, USA, 9 Nov 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
EXTREME ULTRAVIOLET RADIATION
RADIATION DETECTORS
SPACE FLIGHT
ANODES
CALIBRATION
GRAZING
IMAGE PROCESSING
MATHEMATICAL MODELS
MICROCHANNEL ELECTRON MULTIPLIERS
MICROELECTRONICS
POSITION SENSITIVE DETECTORS
ELECTRODES
ELECTROMAGNETIC RADIATION
ELECTRON MULTIPLIERS
ELECTRON TUBES
MEASURING INSTRUMENTS
PROCESSING
RADIATIONS
ULTRAVIOLET RADIATION
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments