A new coincidence module using pulse-mixing method applied in the 4π(LS)-γ coincidence system with TDCR detector

T Ziemek; R Broda; T Dziel; A Listkowska; Z Tymiński

doi:10.1016/j.apradiso.2020.109081

A new coincidence module using pulse-mixing method applied in the 4π(LS)-γ coincidence system with TDCR detector

Appl Radiat Isot. 2020 May:159:109081. doi: 10.1016/j.apradiso.2020.109081. Epub 2020 Feb 13.

Authors

T Ziemek¹, R Broda², T Dziel², A Listkowska², Z Tymiński²

Affiliations

¹ National Centre for Nuclear Research Radioisotope Centre POLATOM (POLATOM), Andrzeja Sołtana 7, 05-400, Otwock, Poland. Electronic address: tomasz.ziemek@polatom.pl.
² National Centre for Nuclear Research Radioisotope Centre POLATOM (POLATOM), Andrzeja Sołtana 7, 05-400, Otwock, Poland.

PMID: 32068144
DOI: 10.1016/j.apradiso.2020.109081

Abstract

Application of a new coincidence module using the pulse-mixing method in the 4π(LS)-γ coincidence system with TDCR detector in the beta channel (TDCRG) is presented. The pulse-mixing method extended for the TDCR system with gamma channel was compared with the classical coincidence method where the coincidence resolving time is introduced. The characteristics of the resolving and dead time of the above two methods were investigated. The level of accidental coincidences in the system was determined. The new developed coincidence module was validated by activity measurement of a set of ⁵¹Cr, ⁵⁴Mn, ⁶⁰Co, ⁶⁵Zn, ⁸⁵Sr and ¹³⁴Cs standards.

Keywords: 4π(LS)-γ coincidence system; Coincidence module; Pulse-mixing method; TDCR.