title: Cosmic ray radiography of the damaged cores of the Fukushima reactors.
abstract: The passage of muons through matter is dominated by the Coulomb interaction with electrons and nuclei. The interaction with the electrons leads to continuous energy loss and stopping of the muons. The interaction with nuclei leads to angle "diffusion." Two muon-imaging methods that use flux attenuation and multiple Coulomb scattering of cosmic-ray muons are being studied as tools for diagnosing the damaged cores of the Fukushima reactors. Here, we compare these two methods. We conclude that the scattering method can provide detailed information about the core. Attenuation has low contrast and little sensitivity to the core.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, New Mexico 87544, USA.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Borozdin
authors.forename: Steven
authors.initials: S
authors.lastname: Greene
authors.forename: Zarija
authors.initials: Z
authors.lastname: Lukić
authors.forename: Edward
authors.initials: E
authors.lastname: Milner
authors.forename: Haruo
authors.initials: H
authors.lastname: Miyadera
authors.forename: Christopher
authors.initials: C
authors.lastname: Morris
authors.forename: John
authors.initials: J
authors.lastname: Perry