Laboratory for ChemoMetrics, Vienna (Austria) MS - Chemometrics - COSIMA

Summary of Results: Software Simulation of TOF-SIMS

Example: K and C3H3

Introduction	Method	Software SimTof
K and C3H3	Primary Ion Distribution	Reflector Potential

Aim of the example

Signals for the ions K⁺ (mass 38.964) and C₃H₃⁺ (mass 39.024) are generated for a TOF with and without ion reflector, respectively.

Input

For details see Method.

peak list (ASCII file): with relative intensities (100, 50) with parameter E0 for initial kinetic energy

Number of secondary ions: 10000

TOF geometry: with / without ion reflector

Result

Without reflector mass resolution 73

With reflector mass resolution 3500

The example demonstrates the importance of the ion reflector to obtain a good mass resolution.

Introduction	Method	Software SimTof
K and C3H3	Primary Ion Distribution	Reflector Potential

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Last update 2000-12-04