The Journal of Experimental and Techniques - JETI - is an online peer-reviewed journal published by the Materials Science Graduation Programme of the Institute of Physics of the Federal University of Mato Grosso do Sul, Brazil. JETI reports on the fundamentals of experimental techniques and instrumentation development applied to the creation of new materials and to the ones with improved performances. It promotes, therefore, the scientific dissemination of technology for utilities and academic applications at the interface of physics, chemistry, materials and engineering sciences.