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19th of February 2008

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Diamond UV sensors

Why diamond for VUV sensitive detectors?

Diamond (C*) is a wide bandgap semiconductor (Bandgap energy is equal to 5.5 eV, i.e. 220 nm at room temperature), which makes the sensors ‘solar-blind’: insensitive to the solar spectrum below the Earth atmosphere (at sea level) with a good UV/visible response ratio. By using diamond detectors, (...)

LYRA Radiometer onboard PROBA2

LYRA is a solar VUV radiometer that will embark in 2007 onboard PROBA2 (PRoject for On-Board Autonomy 2), a technologically oriented ESA micro-mission conceived for the purpose of demonstrating new technologies. LYRA is designed and manufactured by a Belgian-Swiss-German consortium (ROB, (...)

PREMOS

PREMOS (PREcision Monitor for OScillation measurement) is a set of 3 photometers to study the ozone formation and destruction, to perform helioseismologic observations, and a differential radiometer to measure the total solar irradiance. PREMOS also measures the solar spectral irradiance in 4 (...)

LAPIN - Lyman Alpha PIN photodetectors for space applications

The spectral line at 1216 Å corresponds to the Lyman-alpha radiation named after American physicist Theodore Lyman, this is the transition of an electron between the two lowest energy levels of a hydrogen atom. The Ly-alpha line is the most fundamental transition of the most abundant atom in the (...)

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