Return flux measurements in response to short-time electron beams aboard Spacelab-1

K.M. Torkar , W. Riedler , K. Wilhelm (1) , J. Watermann (1) , Christian Béghin (2)

1 MPI Aeronomie - Max-Planck-Institut für Aeronomie
2 LPCE - Laboratoire de physique et chimie de l'environnement

Measurements of the returning electron flux distribution in response to 8 keV, 10 to 100 mA, 20 to 40 ms electron beams of the PICPAB particle accelerator on board Spacelab-1 were performed by an electron spectrometer in the energy range from 0.1 to 12.5 keV (experiment 1ES019A). The electron flux followed almost immediately the beam within the sampling interval of 1 ms. A major flux increase was found at low energies, but also up to the beam energy. The effects of different beam currents and of payload charging are discussed.

Domaines: Planète et Univers [physics]

K.M. Torkar, W. Riedler, K. Wilhelm, J. Watermann, Christian Béghin. Return flux measurements in response to short-time electron beams aboard Spacelab-1. Advances in Space Research, 1988, 8 (1), pp.115-118. ⟨10.1016/0273-1177(88)90350-X⟩. ⟨insu-03188130⟩