MARS-96     ROBOTIC SPACECRAFT MISSION TO MARS. Brief description
Table of contents
Inroduction
Scientific goals
Scheme of the mission
Spacecraft
Orbiter
Payload of the Orbiter
Scientific goals of
the experiments
Description of
the instruments
Small Stations
Penetrators
Conclusion
Experiment: PGS
INSTRUMENTS FOR ASTROPHYSICAL-TRAJECTORY STUDIES


PRECISION GAMMA SPECTROMETER



Main scientific objectives:: measurements of gamma radiation from the Martian surface, powerful solar flares and gamma-bursts.

The instrument operates without pauses along the Earth-to-Mars trajectory recording cosmic gamma-rays. On the orbit around Mars the instrument measures gamma spectra of the surface in the region of planetary pericentersexperiment combines two fluxgate magnetometers and two spectrometer for measuring 3D distribution of electrons and ions.

Instrument is a measuring complex which consists of the following units:

  • detection unit with a thermal control system;
  • spectrometric amplifier;
  • power supply unit;
  • amplitude analysis unit;
  • unit of data processing and output to be MORION system.
  • The detection unit with an amplifier and a thermal control system will be mounted on a special deploying structure to prevent heat loads from spacecraft hardware.



    Main characteristics:
    Volume of each of two HpGe
    90 cm 3
    Dynamic range 0.03 to 8 MeV
    Number of spectral channel 4096
    Time resolution in BURST mode 61mks
    Time resolution in PLANET mode
    1 - 5 min
    Time resolution in BACKGROUND mode 10 to 120 min
    Spectral resolution 14 %
    Angular resolution4° x 22°
    Mass 25,65 kg





    Cooperation:Russia, USA.

    Contact persons:I. Mitrofanov (PI), imitrofa@iki.rssi.ru


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