2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37985The gravitational force on antimatter has never been directly measured. A method is suggested for measuring the acceleration of antimatter $(\bar g)$ by measuring the deflection of a beam of neutral antihydrogen atoms in the Earth's gravitational field. While a simple position measurement of the beam could be used, a more efficient measurement can be made using a transmission interferometer. A 1% measurement of $\bar g$ should be possible from a beam of about 100,000 atoms, with the ultimate accuracy being determined largely by the number of antihydrogen atoms that can be produced. A method is suggested for producing an antihydrogen beam appropriate for this experiment.Written version of invited contribution to LEAP'94: Third Biennial Conference on Low-Energy Antiproton Physics. Latex, requires macro epsfig (included with figures), which uses epsf; 11 pages, 4 figuresHigh Energy Physics - ExperimentGeneral Relativity and Quantum Cosmologytext