02572nas a2200229   4500008004100000022001400041245013200055210006900187260007300256300001400329490000800343520166100351653001502012653002402027653002802051653003902079100002302118700002402141700002902165700001902194856012902213       2007                        eng d  a0039-602800aImpact of orientational distribution of adsorbing objects on dynamics of Random Sequential Ballistic Adsorption (RSBA) dynamics0 aImpact of orientational distribution of adsorbing objects on dyn  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcNOV  a5010-50150 v6013 a<p>Recently, by proposing a new variant of Random Sequential Adsorption (RSA) namely Random Sequential Ballistic Adsorption (RSBA) model [Pradip B. Shelke, A.G. Banpurkar, S.B. Ogale, A.V. Limaye, Surf. Sci. 601 (2007) 274], we addressed the issue of adsorption dynamics of extended objects where the objects, upon adsorption, protrude outside the substrate. This study brought out the role of the arriving trajectory in the adsorption dynamics. In the present work the possible role of the orientational distribution of the arriving objects in the RSBA dynamics is investigated. The dynamics of RSBA of needles (line segments) is studied analytically and by computer simulation for different types of theta distributions of arriving needles, theta being the angle made by the arriving needle with normal to the substrate. Three types of theta distributions, namely a uniform distribution over the range (0, pi/2), a Gaussian distribution and a distribution uniform over the solid angle, are considered. Analytical treatment establishes that in all the three cases, the number n(t) of adsorbed objects at a late time t follows a power law n(t) similar to t(alpha), and the exponent a depends on the specifics of the theta distribution. In general, for distribution f(theta) proportional to theta(beta), for theta -&gt; 0, alpha is found to be 2/(beta + 3). The simulation results are in excellent agreement with the analytical findings and together they reveal that the orientational distribution of arriving objects has significant consequences for the Random Sequential Ballistic Adsorption (RSBA) process. (C) 2007 Elsevier B.V. All rights reserved.</p>10aAdsorption10aadsorption kinetics10aMonte Carlo simulations10arandom sequential adsorption (RSA)1 aShelke, Pradip, B.1 aBanpurkar, Arun, G.1 aOgale, Satishchandra, B.1 aLimaye, A., V.  uhttp://library.ncl.res.in/content/impact-orientational-distribution-adsorbing-objects-dynamics-random-sequential-ballistic-0