The Heliosphere Instrument for Spectra, Composition, and Anisotropy and Low Energies (HI-SCALE) is designed to make measurements of interplanetary ions and electrons throughout the entire Ulysses mission. The ions (E > 50 keV) and electrons (E > 30 keV) are identified uniquely and detected by five separate solid state detector telescopes. These telescopes are oriented to give nearly complete pitch angle coverage (i.e., coverage of essentially 4 pi ster) from the spinning spacecraft. Ion elemental abund ances are determined by dE vs E telescope using a thin (5 um) front solid state detector element in a three element telescope. Experiment operation is controlled by a microprocessor based data system. In-flight calibration is provided by radioactive sources mounted on telescope covers which can be closed for calibration purposes and for radiation protection during the course of the mission. Ion and electron spectral information is determined using both broad energy-range rate channels and a 32 channel pulse height analyzer (channels spaced logarithmically) for more detailed spectra.
For more information about this page
contact: Dr. S. Edward Hawkins III.
HI-SCALE Principal Investigator:
Dr. Louis J. Lanzerotti
Back to Uls HI-SCALE Site Map
HI-SCALE Team and meetings
HI-SCALE Data Archive at Fundamental Technologies
HI-SCALE Publications
NASA's Ulysses Mission Home
Ulysses Housekeeping Plots (Updated Daily)
Additional JHU/APL Missions
