title: Radiation-modified natural zeolites for cleaning liquid nuclear waste (irradiation against radioactivity).
abstract: There have been comparatively few investigations reported of radiation effects in zeolites, although it is known that these materials may be modified substantially by exposure to ionizing radiation. Thus, by exposure to γ-rays or high-energy particles, the charge states of atoms may be changed so to create, and accumulate, lattice point defects, and to form structurally disordered regions. Such a technique may permit the creation, in a controlled fashion, of additionally useful properties of the material while preserving its essential stoichiometry and structure. Accordingly, we present an application, in which the cation-exchange capacity of a natural zeolite (clinoptilolite) is substantially enhanced, for the treatment/decontamination of water contaminated with radionuclides e.g. (134)Cs, (137)Cs and (90)Sr, by its exposure to high-energy (8 MeV) electrons, and to different total doses.
authors.affiliation: A. Alikhanyan National Science Laboratory (Yerevan Physics Institute Foundation), 2, Alikhanyan Bros. str., Yerevan, 0036, Armenia.
authors.forename: Hrant
authors.initials: H
authors.lastname: Yeritsyan
authors.forename: Aram
authors.initials: A
authors.lastname: Sahakyan
authors.forename: Vachagan
authors.initials: V
authors.lastname: Harutyunyan
authors.forename: Sergey
authors.initials: S
authors.lastname: Nikoghosyan
authors.forename: Eleonora
authors.initials: E
authors.lastname: Hakhverdyan
authors.forename: Norair
authors.initials: N
authors.lastname: Grigoryan
authors.forename: Aghasi
authors.initials: A
authors.lastname: Hovhannisyan
authors.forename: Vovik
authors.initials: V
authors.lastname: Atoyan
authors.forename: Yeghis
authors.initials: Y
authors.lastname: Keheyan
authors.forename: Christopher
authors.initials: C
authors.lastname: Rhodes