Calibration system for satellite and rocket-borne ion mass spectrometers in the energy range from 5 eV/charge to 100 keV/charge

Details Calibration system for satellite and rocket-borne ion mass spectrometers in the energy range from 5 eV/charge to 100 keV/charge Calibration system for satellite and rocket-borne ion mass spectrometers in the energy range from 5 eV/charge to 100 keV/charge

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983rsci...54..425g&link_type=abstract

Review of Scientific Instruments (ISSN 0034-6748), vol. 54, April 1983, p. 425-436. Research supported by the U.S. Department of

Physics

27

Calibrating, Ion Probes, Mass Spectrometers, Rocket-Borne Instruments, Satellite-Borne Instruments, Space Plasmas, Electron Guns, Feedback Control, Geos Satellites (Esa), Ion Accelerators, Ion Beams, Ion Sources, Particle Energy, Radiation Detectors, Vacuum Chambers

Scientific paper

A system has been designed for testing and calibrating satellite-borne ion mass spectrometers which provides a large-area (250 sq cm), highly parallel, and spatially uniform beam of ions over the range from 5 eV/charge to 100 keV/charge. The system features variable energy spread from 1 eV/charge to 3 keV/charge and multiple charge state ions such as He(2+) or Xe(9+). The system incorporates a high-efficiency electron bombardment ion source capable of delivering about 10 to the -8th A, a 90-deg crossed electric and magnetic field mass spectrometer designed to produce either a mixed or mass-selected beam, and a beam expansion system which produces the uniform large-area beam. The system includes automatic beam monitoring and control via a feedback loop, as well as provisions for semiautomatic control of angle and energy analysis. Calibration results for a GEOS satellite are presented.

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