INVESTIGADORES
SANCHEZ Francisco Homero
artículos
Título:
Self-tuning digital Mössbauer detection system
Autor/es:
A. VEIGA, C. M. GRUNFELD, G. A. PASQUEVICH, P. MENDOZA ZÉLIS, N. MARTÍNEZ, F. H. SÁNCHEZ
Revista:
HYPERFINE INTERACTIONS
Editorial:
Springer
Referencias:
Lugar: viena; Año: 2013
ISSN:
0304-3843
Resumen:
Long term gamma spectroscopy experiments involving single-channel analyzer equipment depend upon thermal stability of the detector and its associated high-voltage supply. Assuming constant discrimination levels, a drift in the detector gain impacts the output rate, producing an effect on the output spectrum. In some cases (e.g. single-energy resonant absorption experiments) data of interest can be completely lost. We present a digital self-adapting discrimination strategy that tracks emission line shifts using statistical measurements on a predefined region-of-interest of the spectrum. It is developed in the form of a synthesizable module that can be intercalated in the digital processing chain. It requires a moderate to small amount of digital resources and can be easily activated and deactivated.
