A chemical reaction model, suitable for use in the Direct Simulation Monte Carlo (DSMC) method, is developed to simulate hypervelocity collisions of an important reaction in atmospheric-jet interactions O(3P)+HCl(1Σ ) OH(2Π)+Cl(2P). The model utilizes the Quasi-Classical Trajectory (QCT) method with two potential energy surfaces (PES), new benchmark triple A and A surfaces and London-Eyring-Pol...

Focused Ion Beam (FIB) is one of the important machining techniques to fabricate diamond sensors/detectors used for drug analysis, chemical analysis and bio-sensing applications. In-depth understanding of the high energy collision process and the residual damage induced along the trace of gallium ion could undoubtedly facilitate the development and improvement of performance of such devices thr...

Limited by the construction demands, the state-of-the-art molecular synchrotrons consist of only 40 segments that hardly make a good circle. Imperfections in the circular structure will lead to the appearance of unstable velocity regions (i.e. stopbands), where molecules of certain forward velocity will be lost from the structure. In this paper, we propose a stopband-free molecular synchrotron....

The neutral–neutral reaction of the cyano radical, CN(X S), with ethylene, C2H4(X Ag), has been performed in a crossed molecular beams setup at two collision energies of 15.3 and 21.0 kJ mol to investigate the chemical reaction dynamics to form vinylcyanide, C2H3CN(X A8) under single collision conditions. Time-of-flight spectra and the laboratory angular distributions of the C3H3N products have...

In this research, the effect of bubble surface area flux, Sb, and particle size on flotation rate constant, k, of pyrite (FeS2) particles was studied using bubble-particle interactions. The bubble-particle collision, attachment and detachment efficiencies were calculated under different flow regimes. The k increased with increase in the collision efficiency and decreas...

The collision of energetic gas phase particles with adsorbed species can induce a variety of processes. Events of this kind can play an important role in the mechanisms governing heterogeneous catalysis at high pressures and elevated temperatures. Two collision induced processes (CIP) are described in this article. The first process discussed is collision induced desorption (CID). The CID of N2...