The radioactivities of Ar-37, Ar-39, and H-3 measured at a number of depths for Apollo 16 and 17 soil are reported. The Ar-37 activities vs depth in the Apollo 16 drill string increased with depth and reached a broad maximum in the neighborhood of 50 g per sq cm before decreasing. The Ar-39 activities in Apollo 17 soil were higher than in Apollo 16 soil, probably owing to the higher Fe and Ti contents. The H-3 activities in Apollo 16 and 17 soil were quite similar and indicate that the 4 August 1972 flare produced very little H-3 compared to the amount produced by solar flares during the previous 50 years.


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    Title :

    Radioactivities vs. depth in Apollo 16 and 17 soil


    Contributors:
    Fireman, E. L. (author) / D'Amico, J. (author) / Defelice, J. (author)

    Conference:

    Lunar Science Conference ; 1973 ; Houston, TX


    Publication date :

    1973-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :




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