2006
DOI: 10.1016/j.nima.2006.04.049
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Exact expression for the variance of the photon emission process in scintillation counters

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Cited by 11 publications
(17 citation statements)
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“…Since the scintillation rise time plays an important role for the timing properties (cf. [16], [17]) we modified GEANT4 to take the rise time into account. Figure 4 shows the theoretical limit on the coincidence time resolution as a function of the number of photons detected in each of the two photo-detectors for two different scintillation rise times: 500 ps (blue dashed line) and 100 ps (red solid line).…”
Section: Design Of the Tof-pet Test Devicementioning
confidence: 99%
“…Since the scintillation rise time plays an important role for the timing properties (cf. [16], [17]) we modified GEANT4 to take the rise time into account. Figure 4 shows the theoretical limit on the coincidence time resolution as a function of the number of photons detected in each of the two photo-detectors for two different scintillation rise times: 500 ps (blue dashed line) and 100 ps (red solid line).…”
Section: Design Of the Tof-pet Test Devicementioning
confidence: 99%
“…Esta probabilidad viene definida por el tiempo de caída del cristal centellador τ caida , el tiempo de subida del centellador τ subida y el número de fotones emitidos en el centelleo R. El número de fotones emitidos (R) está directamente relacionado con la energía del rayo gamma absorbido que provoca el centelleo. La probabilidad de que se hayan emitido N fotones en un tiempo t viene determinada por la distribución de Poisson [93,84,94]:…”
Section: Resolución Temporal Del Cristal Centellador σ Txt Alunclassified
“…La mejor desviación estándar obtenida es considerada el límite inferior de σ tEST A . Clásicamente, la función f(t) no consideraba el tiempo de subida del centellador τ subida y, en muchos trabajos [96,94,84], viene expresada como:…”
Section: Resolución Temporal Del Cristal Centellador σ Txt Alunclassified
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“…The classic approach is to consider the exponential approximation (4.10) and derive the distribution of the time of emission of the Nth photon from it [263]. The variance σ 2 t (N ) of the emission time with respect to the start of the scintillation may then be given by the closed formula [264] σ t (N ) = τ 1…”
Section: Factors Influencing Time Resolutionmentioning
confidence: 99%