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The ISEE 1 and 2 medium energy particles experiment
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1978
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[PDF-77.75 MB]
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Description:We describe the medium energy particles experiment (MEPE) on board ISEE 1 and 2. The MEPE consists of the WIM instrument on ISEE 1 and the KED instrument on ISEE 2. Both instruments employ solid state detectors and magnetic analysis to measure the angular, energy, and intensity distributions of protons (ions) above 24 keV and electrons above 20 keV. The WIM instrument also includes a composition measurement employing AE by E and time-of-flight techniques. Three parameter analysis is performed above 250 keV/ nucleon, and single parameter analysis is performed above 125 keV/ nucleon for helium through oxygen. Three-dimensional angular distributions are obtained through the use of a scan platform in the WIM instrument and multiple detector heads in the KED instrument. A variety of operational modes are used to optimize data collection from both instruments. Resolutions up to 128 channels in energy, 192 samples over the unit sphere in angle, and 0.095 seconds in time are available.
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Rights Information:CC0 Public Domain
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