Mössbauer acquisition system for Rayleigh scattering experiments

Abstract

A data acquisition system is reported with a number of improvements over similar systems currently used in Rayleigh scattering of Mössbauer radiation (RSMR) experiments. It is based on a data acquisition board including a Mössbauer function generator with adjustable frequency reference signal delivery, an internal single channel analyzer, and an internal 32 kB random access memory for data storage. The system performances were tested in RSMR measurements on pyrolytic graphite C (002) single crystal by using an iron enriched 57Fe (30 at. %) in rhodium matrix absorber. We want to demonstrate that the reported data acquisition system is suitable for the experimental separation of the elastic and inelastic components of the scattered radiation. The system can be used also in the ordinary Mössbauer measurements as a compact and rapid data acquisition system. In this case it presents the advantage of including also the function generator.