title: Particle concentration in the asteroid belt from pioneer 10.
abstract: The spatial concentration and size distribution for particles measured by the asteroid/meteoroid detector on Pioneer 10 between 2 and 3.5 astronomical units are presented. The size distribution is from about 35 micrometers to 10 centimeters. The exponent of the size dependence varies from approximately -1.7 for the smallest to approximately -3.0 for the largest size measured.
authors.forename: R K
authors.initials: RK
authors.lastname: Soberman
authors.forename: S L
authors.initials: SL
authors.lastname: Neste
authors.forename: K
authors.initials: K
authors.lastname: Lichtenfeld