The MIMI electronics box contains the data processing unit (DPU) and the digital processing electronics for all three detector heads.
The low-energy magnetospheric measurements
system (LEMMS) detector head will measure low- and high-energy
proton, ion, and electron angular distributions. The LEMMS head
is mounted on a scan platform capable of 180-degree rotations.
The platform is mounted so that the rotation axis is oriented
perpendicular to the spacecraft X axis and so that its extrapolation
intersects the spacecraft Z axis.
The charge-energy-mass spectrometer (CHEMS) head will measure the charge state and composition of ions in the most energetically important portion of the Saturnian magnetospheric plasma.
The ion and neutral camera (INCA) will
make two different types of measurements. It will obtain with
very high sensitivity the three-dimensional distribution, velocities,
and rough composition of magnetospheric and interplanetary ions
for those regions in which the energetic ion fluxes are very
low. The INCA instrument will also obtain remote images of the
global distribution of the energetic neutral emission of hot
plasmas in the Saturnian magnetosphere, measuring the composition
and velocities of those energetic neutrals for each image pixel.
