An Overview of the Planetary Emissivity Laboratory (PEL) at DLR in Berlin

Kurzfassung

The PEL provide the planetary community already today with emissivity measurements highly complementary to existing spectral databases. With the recently completed upgrade the PEL allows unique measurements with a strong focus on airless bodies and extreme conditions as the ones BepiColombo and MESSENGER will encounter at Mercury, over the ex-tremely wide spectral range from 1-100 μm for fine grained samples. Two accessories permit complemen-tary measurements of reflectance and transmission in the same large spectral range, that can be easily ex-tended to until 300 µm. A second instrument is used to measure emissivity at low/moderate temperatures, and bi-directional reflectance spectra at room temperature of samples, under purged air conditions.