2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/212846We describe a set-up for studying adsorption of helium in silica aerogels, where the adsorbed amount is easily and precisely controlled by varying the temperature of a gas reservoir between 80 K and 180 K. We present validation experiments and a first application to aerogels. This device is well adapted to study hysteresis, relaxation, and metastable states in the adsorption and desorption of fluids in porous media.Soft Condensed MatterInstrumentation and Detectorstext