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Título:
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The Generalized Centroid Difference method for lifetime measurements via gamma-gamma coincidences using large fast-timing arrays.
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Autores:
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Mach Henryk, Andrzej ;
Fraile Prieto, Luis Mario
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Tipo de documento:
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texto impreso
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Editorial:
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EDP Sciences, 2015
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Dimensiones:
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application/pdf
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Nota general:
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cc_by
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física nuclear
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Tipo = Sección de libro
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Resumen:
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A novel method for direct electronic "fast-timing" lifetime measurements of nuclear excited states via gamma-gamma coincidences using an array equipped with N very fast high-resolution LaBr3(Ce) scintillator detectors is presented. The generalized centroid difference method provides two independent "start" and "stop" time spectra obtained without any correction by a superposition of the N(N - 1)/2 calibrated gamma-gamma time difference spectra of the N detector fast-timing system. The two fast-timing array time spectra correspond to a forward and reverse gating of a specific gamma-gamma cascade and the centroid difference as the time shift between the centroids of the two time spectra provides a picosecond-sensitive mirror-symmetric observable of the set-up. The energy-dependent mean prompt response difference between the start and stop events is calibrated and used as a single correction for lifetime determination. These combined fast-timing array mean gamma-gamma zero-time responses can be determined for 40 keV
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En línea:
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https://eprints.ucm.es/32960/1/Fraile%20Prieto%2004%20libre%20%2B%20CC.pdf
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