Monte-Carlo optimization of the transmission of recoil separators

For the optimization of the transmission of recoil separators a Monte-Carlo computer code was developed. A special subroutine generates a set of “real” particles, which will be stored dynamically in the computerʹs memory. The mean program varies the parameters of the focusing system of the separator in steps, calculates the transmission for each parameter set by transporting a large number of “particles” using the first-order ion optics and searches the best combination of the variables over the permitted ranges of values.