Ulysses - COSPIN-KET

What is COSPIN/ KET?

Flight spare model of the Kiel Electron Telescope
Figure 1: Flight spare model of the Kiel Electron Telescope: Sensor unit and the electronic box in the back. For comparison, a German five-mark coin, which is somewhat larger than a 2-Euro coin, is shown to demonstrate the size of the instrument. (original size)

The Kiel Electron Telescope (KET) is the outcome of a joint effort of the Institut für Experimentelle und Angewandte Physik der Christian Albrechts Universität zu Kiel and the CEA, DSM/DAPNIA/Service d' Astrophysique CE-Saclay.

It is part of the Cosmic Ray and Solar Particle Investigation (COSPIN) experiment, one of the nine instruments that make up the scientific payload of Ulysses. (KET) is designed to measure electron, proton, and helium fluxes in several energy channels from a few MeV/n up to and above a few GeV/n. The scientific investigation programme encompasses studies on the propagation of Galactic, Solar and Jovian Cosmic Rays in the 3D Heliosphere, on the cosmic ray gradients and the long-term modulation, on the north-south asymmetries, on the corotating events and on the short-term modulation.