SEQUENTIAL OBSERVATION METHOD FOR MONITORING THE EVOLUTION OF A CHEMICAL REACTION

摘要

method of observation sequence of successive states of a chemical reaction during operation in a high vacuum or under a low pressure and determination of the nature of the body, or the composition of a mixture can be solid, liquid or aerosol form gaazeux; or in the us, this dissociation in a crash box (20) with a neutral gas.the molecules of the compounds formed, and dissociation energy filtering fragments in an electrostatic analyzer (22) and the detection (24), characterized in that the molecules of the compounds to be analyzed are formed onto a target (4) and the conducting walls are brought to a high power continuousthe target (4) being bombed by two cannons with neutral molecular molecular beam of high energy (or mixtures of ions and neutrals or ions), namely a first continuous stream (16) with atoms and molecules to react together and / or av and the target, and a second intermittent stream (18) to ionize a neutral gas molecules by collision.the molecules are formed. the device is such that, in most cases, the neutral beam and the secondary ions are in a vertical plane.