[en] Titanium isotopic ratios in some terrestrial and meteoritic materials have been measured. Most are found to have the same ratios within the experimental precisions. Some inclusion materials from the Allende meteorite have a statistically significant enhancement of the order of 1% in the 50/49 ratio, probably due to a nucleogenic anomaly in ⁵⁰Ti abundance. (author)

[en] The following data are tabulated for titanium binary and complex halides and chalcogenides: compound, structural type, crystal system and space group, unit cell dimensions, number of formula units in the unit cell and density

No abstract available

No abstract available

[en] The thermochemical properties are presented of titanium metal, titanium hydrides (Ti-H₂, Ti-D₂) titanium halides (fluorides bromides, oxyhalides), the titanium-oxygen system, titanates, titanium chalcogenides (Ti-S, Ti-Se, Ti-Te), titanium pnictides (Ti-N, titanium phosphide, arsenide, antimonide), titanium compounds with fourth group elements (Ti-C, Ti-Si), titanium compounds with third group elements (Ti-B, Ti-Al) and titanium compounds with other metallic elements (Ti-Cr, Ti-Cu, Ti-Fe, Ti-Hg, Ti-Ir, Ti-Mo, Ti-Nb, Ti-Ni, Ti-Pd, Ti-Pt, Ti-V, Ti-Zr)

[en] Electron captures are amongst the most important weak interaction rates related to the dynamics of stellar core collapse. They play a key role in the gravitational collapse of the core of a massive star triggering the supernova explosion. Titanium isotopes are believed to have significant impact on controlling the lepton-to-baryon fraction in the late phases of evolution of core of massive stars. This work consists of the calculation of electron capture rates on titanium isotopes. The pn-QRPA theory is used to calculate electron capture rates in stellar matter. The electron capture rates are calculated over a wide range of densities (10 ≤ ρY_e (g/cm³) ≤ 10¹¹) and temperatures (10⁷ ≤ T (K) ≤ 3 10⁹). Here we also report the differences in electron capture rates with the earlier calculations including those using large scale shell model. (author)

[en] Short communication. 3 refs., 1 tab

[en] The optical isotope shifts between ⁴⁶Ti, ⁴⁸Ti and ⁵⁰Ti have been measured for eight 3d³ 4s a ⁵F-3d² 4s4p y ³F lines of titanium by use of a Doppler-free experiment. By contrast with the positive shifts previously measured for 3d² 4s² a ³F-3d² 4s4p z ⁵D lines, these shifts are negative and reveal the presence of large negative specific mass shifts attributed to a d-p electron jump. The interpretation of the present measurements and of former ones is made by means of Hartree-Fock calculations. (orig.)

[en] Several levels in ⁴⁶,⁴⁷,⁴⁸,⁴⁹,⁵⁰Ti from 1.5 to 4.3 MeV are observed in the resonant scattering of bremsstrahlung by natural Ti. Six may be given immediate isotope assignments from verified branching to first excited states, seven may be assigned by close agreement of energies and other characteristics with levels observed in other reactions, one has a possible dual assignment, and one cannot be assigned. Widths and mean lives are given as well as information on spins, mixing ratios, and branching ratios

[en] The results are presented of the measurements of the charge radii difference for Ti nuclei (Z=22) in the region of the mass number 44-50. The method of laser resonance fluorescence in the parallel atomic beam was used. The values of charge radii differences were obtained from the measurements of the optical shifts in the optical transition 3d²4s²a³P → 3d³4py³D⁰ on the wave length of 586,6 nm. The comparison of charge radii dependence on neutron number was performed for Ti and Ca nuclei. In contrast to Ca nuclei the continuous raising of charge radii is observed for Ti nuclei at mass number decreasing. 9 refs., 2 figs., 2 tabs