Comparison of digital coincidence modules used at POLATOM and PTB for TDCR and 4πβ(LS)-γ coincidence counters

T Ziemek; O J Nähle; K Kossert; S Leschitzki; M P Takács; R Broda; A Listkowska; Z Tymiński; T Dziel

doi:10.1016/j.apradiso.2020.109231

Comparison of digital coincidence modules used at POLATOM and PTB for TDCR and 4πβ(LS)-γ coincidence counters

Appl Radiat Isot. 2020 Oct:164:109231. doi: 10.1016/j.apradiso.2020.109231. Epub 2020 Jun 3.

Authors

T Ziemek¹, O J Nähle², K Kossert², S Leschitzki², M P Takács², R Broda³, A Listkowska³, Z Tymiński³, T Dziel³

Affiliations

¹ National Centre for Nuclear Research Radioisotope Centre POLATOM (POLATOM), Andrzeja Sołtana 7, 05-400, Otwock, Poland. Electronic address: [email protected].
² Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany.
³ National Centre for Nuclear Research Radioisotope Centre POLATOM (POLATOM), Andrzeja Sołtana 7, 05-400, Otwock, Poland.

PMID: 32554122
DOI: 10.1016/j.apradiso.2020.109231

Abstract

Activity measurements of ³H, ²⁴¹Am and ⁶⁰Co solutions were performed to compare digital coincidence modules used at PTB and POLATOM for TDCR and 4πβ(LS)-γ coincidence counting. The activities determined with various coincidence modules connected in parallel to the same counter at PTB were found to be consistent. Observed discrepancies caused by differences in the coincidence resolving time did not exceed 0.14%. Accidental coincidences simulated by a frequency generator were registered, and the coincidence resolving time was determined.

Keywords: 4πβ(LS)-γ coincidence system; Digital coincidence module; TDCR.