In spectroscopic measurements with high counting rate, pulse pile-up (PPU) is a common distortion of the spectrum. It is fully ascribable to the pulse handling circuitry of the detector and it is not comprised in the detector response function which is well explained by a purely physical model. Since PPU occurs after the transport inside the detector, this is the first correction to perform in case of spectrum unfolding. Many producers include electronic rejection circuits to limit the appearance of PPU, but it is never suppressed completely. Therefore, it is always necessary to correct PPU distortions after the measurement. In the present work, it is described the post-processing tool MCPPU (Monte Carlo Pulse Pile-Up), based on the MC algorithm developed by 5 and 6. MCPPU automatically determines the dead time of the counting system and corrects for PPU effects even in the presence of electronic suppression. The capability of allowing a user defined pulse shape makes the code suitable to be used with any kind of detector. The features of MCPPU are illustrated with some examples.

Multi-shape pulse pile-up correction: The MCPPU code / Lorenzo Sabbatucci; Viviana Scot; Jorge Eduardo Fernandez. - In: RADIATION PHYSICS AND CHEMISTRY. - ISSN 0969-806X. - STAMPA. - 104:(2014), pp. 372-375. [10.1016/j.radphyschem.2014.04.034]

Multi-shape pulse pile-up correction: The MCPPU code

SABBATUCCI, LORENZO;SCOT, VIVIANA;FERNANDEZ, JORGE EDUARDO
2014

Abstract

In spectroscopic measurements with high counting rate, pulse pile-up (PPU) is a common distortion of the spectrum. It is fully ascribable to the pulse handling circuitry of the detector and it is not comprised in the detector response function which is well explained by a purely physical model. Since PPU occurs after the transport inside the detector, this is the first correction to perform in case of spectrum unfolding. Many producers include electronic rejection circuits to limit the appearance of PPU, but it is never suppressed completely. Therefore, it is always necessary to correct PPU distortions after the measurement. In the present work, it is described the post-processing tool MCPPU (Monte Carlo Pulse Pile-Up), based on the MC algorithm developed by 5 and 6. MCPPU automatically determines the dead time of the counting system and corrects for PPU effects even in the presence of electronic suppression. The capability of allowing a user defined pulse shape makes the code suitable to be used with any kind of detector. The features of MCPPU are illustrated with some examples.
2014
Multi-shape pulse pile-up correction: The MCPPU code / Lorenzo Sabbatucci; Viviana Scot; Jorge Eduardo Fernandez. - In: RADIATION PHYSICS AND CHEMISTRY. - ISSN 0969-806X. - STAMPA. - 104:(2014), pp. 372-375. [10.1016/j.radphyschem.2014.04.034]
Lorenzo Sabbatucci; Viviana Scot; Jorge Eduardo Fernandez
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/338915
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