HIT (High-energy Ion Telescope)


Drawing of the HIT sensor head. HIT has ten L1 SSDs that define the instrument apertures. The particles stop in two L2 and two L3 SSDs at the center of the telescope.

The High-energy Ion Telescope (HIT) measures the elemental composition, energy spectra, angular distributions, and arrival times of H to Ni ions over a species-dependent energy range from ~2 to ~40 MeV/nuc. HIT, heavily based on the Low Energy Telescope (LET) on the Solar Terrestrial Relations Observatory (STEREO), delivers full-sky coverage from a large GF instrument to enable 1 min resolution of ion anisotropy measurements, observing the ramps of local shocks, anchoring the high-energy SEP ion spectra, and resolving particle transport in the heliosphere.

All schematics and numbers are preliminary as of the beginning of Phase A. Additional information about each instrument can be found in the Open Access IMAP Paper.

HIT Instrument Table

HIT Instrument Performance.