UPPER LIMITS OF HIGHER NUCLEAR MOMENTS OF TI-47 AND TI-49

Within the framework of systematic hyperfine structure (hfs) investiga tion of titanium atom the hfs-splittings of 3d3(2G)4s b G-1(4) levels for two stable isotopes Ti-47 and Ti-49 have been studied. 5 hfs inter vals for each isotope have been measured using ABMR-LIRF method (atomi c beam magnetic resonance detected by laser induced resonance fluoresc ence) with an accuracy of about 300 Hz. The J-off-diagonal second orde r perturbation effects have been taken into account in the interpretat ion. Upper limit of the contributions from octupole and hexadecapole h yperfine structure interaction to hfs intervals of this level have bee n estimated to be about 400 Hz. However, for most of hfs intervals the se contributions are almost within experimental error and in order to study such effects a more precise experimental method should be used.