Hot-Plasma Composition Experiment (HPCE)
The AMPTE CCE Hot-Plasma Composition Experiment (HPCE)
(diagram)
consists of an
energetic ion-mass spectrometer and an electron background-environment
monitor (EBEM). The mass spectrometer covers the entire mass per charge
range from below 1 to >150 amu/e and the energy per charge range from
0 eV/e (spacecraft potential) to 17 keV/e. The EBEM measures elctrons
between 50 eV and 25 keV in eight broad energy bands. The ion-mass
spectrometer was not operational after April 4, 1985.