Abstract The Alpha-X experiments onboard the Phobos Long-term Autonomous Landing Spacecraft (LAS) were launched towards Mars together with the USSR Phobos S/C on 7th and 12th July 1988. The experiments are designed to study the composition of the surface of the Mars moon Phobos. The instruments make use of three methods for determining the chemical composition: by measuring (1) the energy spectrum of alpha particle back-scattered from the soil, (2) the energy spectrum of protons generated by nuclear reactions, and (3) the characteristic x-ray spectrum induced by radioactive sources. The LAS are scheduled to land on Phobos at the end of April and in May 1989.


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    Title :

    Measurement of the surface composition of the mars moon Phobos: The alpha-X experiment on the Phobos mission


    Contributors:

    Published in:

    Advances in Space Research ; 10 , 3-4 ; 53-56


    Publication date :

    1989-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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