Observation of lunar radon emanation during the Apollo 15 and 16 missions shows the existence of areas with locally high emanation rates. The most conspicuous Rn-222 feature found in the data analysis is a region that includes Aristarchus Crater. The excess emanating power of the Aristarchus region may be an indication of internal activity at that site. There are regions with anomalously high rates of Po-210 activity, which indicates transient phenomena involving the release of Rn-222 gas from certain areas of the moon.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Alpha-particle spectrometer experiment


    Contributors:


    Publication date :

    1972-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Alpha-particle spectrometer experiment

    Gorenstein, P. / Bjorkholm, P. | NTRS | 1972


    Ultraviolet spectrometer experiment

    Barth, C. A. / Hord, C. W. / Stewart, A. I. et al. | NTRS | 1973


    Ultraviolet spectrometer experiment

    Fastie, W. G. / Feldman, P. D. / Henry, R. C. et al. | NTRS | 1973



    The pioneer venus orbiter ultraviolet spectrometer experiment: Analysis of hydrogen lyman alpha data

    Paxton, L.J. / Anderson, D.E. Jr / Stewart, A.I.F. | Elsevier | 1985