Secondary effects of particle beams appear in sections appropriate to the principal phenomena under study.
Applied studies appear in the appropriate use-oriented sections.
Surface-structure studies are placed here or in Section 75, depending on the degree of emphasis on the adsorbed state. Chemical analysis of surfaces or colloids for the purpose of determining composition and analytical chromatographic separations appear in Sections 79 or 80 or other appropriate sections that include analytical studies. This section includes general studies on heterogeneous and homogeneous catalysis, catalyst preparation and properties, principles of reaction kinetics and kinetic isotope effects, and reaction mechanisms, as well as those specific studies on these topics that involve reactions of inorganic compounds and coordination complexes. Technology aspects of nuclear chemistry and physics, including patent abstracts, and elementary-particle interactions in bulk matter are included in Section 71. This section includes materials and technology required for the design, construction, and operation of nuclear reactors, accelerators, and nuclear explosive devices.