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Title: Method for effective dead time measurement in counting systems
Authors: Vinagre, F. L. R. 
Conde, C. A. N. 
Keywords: Pulse pile-up; Dead time behavior; Resolution time; Counting losses; Radiation detectors; Absolute counting measurements.
Issue Date: 2001
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators,Spectrometers,Detectors and Associated Equipment. 462:3 (2001) 555-560
Abstract: The counting losses introduced by the dead time of a counting system are a limiting factor in counting measurements. The purpose of this work is to report an efficient method for the measurement of the effective dead time of a counting system and to characterize its dead time behavior, providing a way to investigate each experimental situation. The method, which we designate as Delayed and Mixed Pulses method, is based on the artificial piling-up of detector pulses with electronic pulses delayed by a specific time interval. It is applicable to the measurement of the effective dead time of a counting system, including both pile-up effects and the dead time characteristics of the elements of the counting chain. With counting systems relying on gaseous radiation detectors, we achieved a standard uncertainty of about 5-10% in the dead times measured.
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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