title: Solar radiation effects in lunar samples.
abstract: Optical properties of the pulverized crystalline rocks from the Apollo 11 samples are different from the optical properties of lunar soil. Changes in these properties were induced in the samples by ultraviolet and x-irradiation, standing, and heating. The albedo and spectrum of the soil differed significantly from expected values.
authors.forename: B W
authors.initials: BW
authors.lastname: Hapke
authors.forename: A J
authors.initials: AJ
authors.lastname: Cohen
authors.forename: W A
authors.initials: WA
authors.lastname: Cassidy
authors.forename: E N
authors.initials: EN
authors.lastname: Wells