title: Detection of a nonuniform distribution of polonium-210 on the moon with the apollo 16 alpha particle spectrometer.
abstract: The polonium-210 activity of the lunar surface is significantly larger than the activity of its progenitor radon-222. This result establishes unequivocally that radon emanation from the present-day moon varies considerably within the 21-year half-life of lead-210, the parent nuclide of polonium-210. There are large variations and well-localized enhancements in polonium-210 activity over much of the moon's surface.
authors.forename: P
authors.initials: P
authors.lastname: Bjorkholm
authors.forename: L
authors.initials: L
authors.lastname: Golub
authors.forename: P
authors.initials: P
authors.lastname: Gorenstein