2.4.1 spase://CNES/Instrument/CDPP-AMDA/MESSENGER/EPS EPS Energetic Particle and Plasma Spectrometer (EPPS) : Energetic Particle Spectrometer 2017-01-20T21:10:13Z EPS is a compact TOF telescope with two main components: a TOF section and a Solid State Detectors (SSD) array. The SSD array comprises six ion-implanted planar silicon detectors, each with four pixels (two dedicated to ion measurements and two to electron measurements) for a total of 24 SSD elements. Particles enter the system through a mechanical collimator that delimits the look direction into the instrument. Particles that pass through the collimator then transit through a thin, composite Start foil (polyimide + aluminum, 10 µg/cm2) and onto the TOF region of the instrument. spase://SMWG/Person/George.Ho Scientist EPS description https://link.springer.com/article/10.1007%2Fs112.4.107-9272-5 EnergeticParticleInstrument Energetic Particle and Plasma Spectrometer (EPPS) : Energetic Particle Spectrometer 2005-08-02T00:00:00Z 2015-04-30T00:00:00Z Earth Flyby 2005-08-02 Data Gap 2005-08-03 / 2006-10-25 1st Venus Flyby : 2006-10-25 Data Gap 2006-10-26 / 2007-06-05 2nd Venus flyby : 2007-06-05 Data Gap 2007-06-06 / 2008-01-14 1st Mercury flyby : 2008-01-14 Data Gap 2008-01-15 / 2008-10-06 2nd Mercury flyby : 2008-10-06 Data Gap 2008-10-07 / 2009-09-29 3rd Mercury flyby : 2009-09-29 Data Gap 2009-09-30 / 2011-03-18 Mission phase : 2011-03-18 spase://CNES/Observatory/CDPP-AMDA/MESSENGER