The Role of Ion Properties in Reflectron System Design for Time-of-Flight Mass Spectrometry: A SIMION Simulation-Based Investigation

This study aimed to investigate the impact of multiple ions and the reflector parameters on the mass resolution
of a reflectron time-of-flight mass spectrometry (ReTOF-MS) system. The charged particle optics simulation software,
SIMION, was utilized to simulate ion behavior within the reflectron and electro-optics sections of the system, while
optimizing the system design by altering the geometrical parameters of the electrodes and reflectron. Specifically, the
effect of ion parameters, such as ion energy (IE), birth position (BP), statistical distribution (SD), and mass (m), on the
mass resolution (R) of the system was evaluated. In addition, the influence of various reflectron parameters, including
reflectron geometry, electrode position and shape, and applied voltages, was investigated. The simulations encompassed
a broad range of ion and reflectron parameters, offering insights into the effects of these parameters on the system's mass
resolution. The findings emphasize the necessity of optimizing the reflectron and electro-optics design of a time-of-flight
mass spectrometry system.