Generalization of DT Equations for Time Dependent Sources

• Main Authors: Massimo Mazzillo, Massimo Zimbone, Giorgio Fallica, Agata Scordino, Francesco Musumeci, Salvatore Tudisco, Lorenzo Neri
• Format: Article
• Language: English
• Published: MDPI AG 2010-12-01
• Series: Sensors
• Subjects: Dead Time correction; time dependent sources; Single Photon Avalanche Diode
• Online Access: http://www.mdpi.com/1424-8220/10/12/10828/

New equations for paralyzable, non paralyzable and hybrid DT models, valid for any time dependent sources are presented. We show how such new equations include the equations already used for constant rate sources, and how it’s is possible to correct DT losses in the case of time dependent sources. Montecarlo simulations were performed to compare the equations behavior with the three DT models. Excellent accordance between equations predictions and Montecarlo simulation was found. We also obtain good results in the experimental validation of the new hybrid DT equation. Passive quenched SPAD device was chosen as a device affected by hybrid DT losses and active quenched SPAD with 50 ns DT was used as DT losses free device.