Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufm.g51a0807s&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #G51A-0807
Physics
1243 Space Geodetic Surveys, 5417 Gravitational Fields (1221), 5464 Remote Sensing, 5494 Instruments And Techniques, 6235 Mercury
Scientific paper
The BepiColombo Laser Altimeter (BELA) is among the instruments that have been selected for flight aboard the MPO of ESA's BepiColombo mission to Mercury. A consortium led by Physikalisches Institut Universitaet Bern, Switzerland) and Institut für Planetenforschung (DLR, Berlin, Germany) will develop the first European laser altimeter for planetary exploration. The instrument follows the classical principle of direct detection of the returned laser light using a 200 mm telescope. The receiver telescope is made of electroformed nickel in order to save mass. The transmitter is based on a longitudinally pumped ND:YAG laser with 50 mJ pulses and about 5 ns pulse duration, operating at 10 Hz. The range finding and pulse detection uses digital filtering of return pulse shapes. Operation is possible on the dayside as well as on the night side of Mercury, but limited to about 1200 km altitude. We will present the instrument concept as well as the set-up of new test, verification and calibration facilities that are required for this type of instrument.
Gunderson Kurt
Michaelis Harald
Oberst Jürgen
Seiferlin Karsten
Spohn Tilman
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