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An electrostatic analyzer or ESA is an instrument used in ion optics that employs an electric field to allow the passage of only those ions or electrons...

provided useful data for only the first six days after launch. An electrostatic analyzer and an E-cross-B velocity selector normal to the spacecraft spin...

focussed according to their kinetic energy by a 1272 mm radius 90° electrostatic sector. A mechanically-operated slit provides fine-tuning of the energy...

until the spacecraft decayed from orbit on 23 December 1972. An electrostatic analyzer and an E-cross-B velocity selector normal to the spacecraft spin...

dual-channel, curved-plate electrostatic analyzer (LEPEDEA - low energy proton and electron differential energy analyzer) with 16 energy intervals between...

curved-plate cylindrical electrostatic analyzers and continuous channel multipliers were used for this purpose. One analyzer, the LEPEDEA (low-energy...

basic analyzers available: sector, quadrupole, and time-of-flight. A sector field mass spectrometer uses a combination of an electrostatic analyzer and...

experiment operated throughout the active lifetime of the spacecraft. An electrostatic analyzer with a current collector was used to investigate boundary phenomena...

The instrument also has top-hat symmetrical spherical section electrostatic analyzers (ES) with microchannel plate detectors (MCPs) are used to measure...

the boom to reduce magnetic noise from the spacecraft. EESA is an electrostatic analyzer designed to measure the energies, fluxes, and masses of suprathermal...

multiple photometers, polarimeters, a magnetometer, plasma traps, an electrostatic analyzer, a gamma-ray spectrometer, and a radio probe. Built by Lavochkin...

identical instruments, including a fluxgate magnetometer (FGM), an electrostatic analyzer (ESA), a solid state telescope (SST), a search-coil magnetometer...

activity and interplanetary processes. The detectors used were: (1) an electrostatic analyzer (to select particles of the designated energy per charge) combined...

electron analyzer, analogous to the way an optical lens assists in the transport of light in an optical instrument. Systems of electrostatic lenses can...

included a Lyman-alpha telescope, a rubidium-vapor magnetometer, electrostatic analyzers, medium-energy-range particle detectors, two triple coincidence...

January 2003. Its payload was the MESA instrument (Miniaturized electrostatic Analyzer), which would have been used to sample plasma in the upper atmosphere...

included a Lyman-alpha telescope, a rubidium-vapor magnetometer, electrostatic analyzers, medium-energy range particle detectors, two triple coincidence...

to energy per charge (1.2 eV/e to 12 keV/e) by electrostatic deflection in a toroidal section analyzer with subsequent acceleration (up to 25 keV/e) and...

A hemispherical electron energy analyzer or hemispherical deflection analyzer is a type of electron energy spectrometer generally used for applications...

cylindrical electrostatic analyzers (two for electrons and two for protons). Channel multipliers were used as detectors with the fixed-voltage analyzers. The...