Electromagnetic field exposure system for the study of possible anti-cancer activity

The characteristics of a static and extremely low frequency (ELF) magnetic fields (H-field) exposure system are analyzed. The system has been successfully used in a series of animal experiments devoted to the study of a new potential application of electromagnetism in cancer therapy. The characterization of this exposure system contributes to the improvement needed in the understanding of the role played by the various exposure parameters such as field intensity and field components (static, ELF, or a combination thereof) in the induction of the observed anti-tumor efficacy. This knowledge is important for extrapolating exposure conditions from animals to humans. The exposure system provides static and ELF H-field with an intensity in the kA/m range. The system allows six animals to be treated simultaneously with almost the same total (static + ELF) H-field intensity, but with different static and ELF components and, consequently, with different induced electric field levels and currents. The H-field uniformity experienced by each mouse is 12.4%.