Self-tuning digital Mössbauer detection system

A. VEIGA; C. GRUNFELD; N. MARTÍNEZ; G. A. PASQUEVICH; P. MENDOZA ZÉLIS; F. H. SÁNCHEZ

Medellín

Conferencia; XII Latin American Conference on the Applications of the Mössbauer Effect; 2012

Mössbauer detection system is a classical pulse height selector composed of four main elements: proportional counter, charge preamplifier, shaping amplifier and single channel analyzer. Long term stability is an important factor in high resolution experiments, being critical for the success of constant-velocity applications, where transmission is recorded at a single energy for a long period of time. In these conditions, an output rate variation can not be distinguished to be the effect of the resonant process under study or a consequence of a shift in spectrometer operating point.