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Planetary Emissivity Laboratory (PEL) measurements of directional emissivity

Maturilli, Alessandro and Helbert, Jörn (2015) Planetary Emissivity Laboratory (PEL) measurements of directional emissivity. Hayabusa2 TIR‐MARA Radiometry & Thermo‐Physical Model Workshop, 09. Dez. 2015, Sagamihara, Japan.

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Abstract

At PEL we set-up an experiment to measure the emissivity of two fine powdered (<25 µm) asteroid analogues: meteorite Millbillillie and a synthetic enstatite. Samples measured at surface temperature of 373K, with emerging angle (e) from 0° to 60°, with 5° or 10° step intervals. Two different FTIR Spectrometers used for emissivity measurements under purged air and under vacuum. Custom-designed wedges have been manufactured to tilt the samples at different emission angles. Samples had to be prepared to prevent powder to slipper from the sample cups (always happening for e>30°). Reflectance spectra of the samples was measured for comparison

Item URL in elib:https://elib.dlr.de/101743/
Document Type:Conference or Workshop Item (Speech)
Title:Planetary Emissivity Laboratory (PEL) measurements of directional emissivity
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Maturilli, Alessandroalessandro.maturilli (at) dlr.deUNSPECIFIED
Helbert, JörnJoern.Helbert (at) dlr.dehttps://orcid.org/0000-0001-5346-9505
Date:December 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PEL, emissivity, emerging angle
Event Title:Hayabusa2 TIR‐MARA Radiometry & Thermo‐Physical Model Workshop
Event Location:Sagamihara, Japan
Event Type:Workshop
Event Dates:09. Dez. 2015
Organizer:JAXA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Project MASCOT (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Maturilli, Alessandro
Deposited On:06 Jan 2016 15:04
Last Modified:01 Dec 2018 19:51

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