Examples of screenshots of  Fields.exe program

Angular dependence of Cr3+ Spectrum Yb3+
Angular dependence of axial Cr3+ center in LiNbO3 Simulated EPR spectrum of all isotopes of Yb3+
B3+ - B2+ center Angular dependence of Cu2+
Simulated spectrum of B3+ - B2+ center in neutron irradiated lithium tetraborate Simulated angular dependence of EPR spectra of six low-symmetry magnetically equivalent centers of Cu2+ in LiNbO3. Hyperfine lines of every center have identical color