Simulation of charged cooled trapped ions

Summary form only given. Future aspects of science and technology in many fields such as physics, chemistry, material science, electronics, biology, medicine, etc. are characterized by miniaturization down to an atomic level. One promising method that offers such miniaturization is the ion beam manipulation technology. Over the years we have developed methods dealing with manipulation of ions in ion optical systems. These methods include, development of modeling and simulation programs that describe the ion behavior in ion optical systems, such as quadrupole ion guides, and ion traps. In particular simulation of ion behavior in Paul traps has been studied. This is based on a mathematical model that describes the distribution of a collection of ions in terms of its thermodynamic temperature. Though, the temperature of ions collected in a Very Large Paul trap (VLPTRAP), as they are cooled with buffer gas interaction, has been measured using the time distribution of extracted trapped ions and compared with the simulation. The results show an excellent agreement between the model and the experiment. Extrapolating from the results leads to the prediction that the collected ions cloud can be cooled to liquid nitrogen temperature, or even to liquid helium temperatures. This will allow delivery of the cooled collection of ions with low emittance and high brightness to very small area of the order of nanometer diameter, which may leads to the future applications of such beams in the fast growing field of nanotechnology.