Shock Tube Spectroscopy Ⅰ. The Shock Excitation of Powdered Solids

摘要

Helium driven shock waves in argon were used to excite a number of astrophyaically important oxides (CuO, BoO, MgO, CaO, SrO, BaO, H3B03, A1203, Ti02, PbO, Pb304, V205, Cr2O3, H2W4O13, a-Fe2O3, Fe3O4, FeTiOg.) In addition to the metallic oxides some hydride compounds (Al + H, CuH) end carbon and cyanide compounds (C, AgCN, K3Fe (CN)6, K3 Co(CN)6 KCH) were also studied. As an application to meteor physics four samples of meteorite were subjected to shock excitation.nThe type of spectrum (atomic or molecular) excited in the shock tube can be selected and restricted by suitably adjusting the Mach number (or gas temperature) through the initial pressure ratio and gas parameters.