Micro Spectro-Gonio Radiometer
Laboratory Experiment facility
Facility name:
Micro Spectro-Gonio Radiometer
Location:
Institut de Planétologie et Astrophysique de Grenoble
CNRS - Université Grenoble Alpes
Saint Martin d’Hères, France
Persons in charge:
- Scientific : Bernard Schmitt, Research director & Pierre Beck, Assistant Professor
- Technical : Olivier Brissaud, Engineer
General description
The new spectro-gonio radiometer currently under developement will be optimized for the measurement at low temperature of bidirectional reflectance spectra, over the visible and near-IR (at least from 400 to 4800 nm), of dark and very small samples (organics, meteorites…) down to about 1 mm3 in volume.
It will have 2 major sample holder configurations:
- Open sample holders (various sizes down to 3 mm diameter, 0.1 mm depth) over the -20°C ─ +20°C temperature range (cold chamber).
- The SERAC environmental cell (-40°C ─ +80°C ) previously described with a set of sample holders (small sizes) adapted to this new setup.
A number of sample preparation tools and experiment sub-systems are available to the facility:
- For samples preparation: another cold chamber (down to -20°C), set of sample holders, several specific tools for ice sample preparation, set of sieves, grinders, mortars, saw, balances, microscope, owen, ultra-pure water, several pure gasses, wet chemistry materials a, several owens (up to 1200°C) for sample treatments.
- For the experiment: a thermodynamic volumetric system with high accuracy pressure gauges (10-6 to 1 bar), a flow meter (1-10 sccm) and pumps. He-Ne laser + detectors, camera for sample monitoring, …
