4.6 Article

The efficacy of thick gas electron multiplier detector in measuring 14C for dating purpose

期刊

RADIATION PHYSICS AND CHEMISTRY
卷 198, 期 -, 页码 -

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2022.110288

关键词

Carbon-14 dating; THGEM; SQS Mode; Monte Carlo simulation

资金

  1. Research Universiti Grant, Universiti Kebangsaan Malaysia, Dana Impak Perdana (DIP) [DIP-2020-018]

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This study introduces a new method for calculating C-14 activity using the THGEM detector in SQS mode, which obtains the correlation between C-14 activity and the number of SQS light in THGEM holes through Monte Carlo simulation and measurement. The results show that the THGEM detector is suitable for determining C-14 activity in existing organisms and plants.
Measuring carbon-14 (C-14) activity in the material of biological origin provides the age of that material, and also indicates the radioactive contamination due to radiocarbon in existing organisms, plants, etc. Several techniques comprising direct and indirect methods are used in dating employing C-14. This study introduced a new method for calculating the C-14 activity using Thick Gas Electron Multiplier (THGEM) detector in Self Quenching Streamer (SQS) mode. In this method, by placing the C-14 contaminated sample in front of the THGEM detector, the correlation between the C-14 activity and the number of SQS light in THGEM holes is obtained via both the Monte Carlo simulation and measurement. The obtained results show that the THGEM detector is suitable to determine the C-14 activity in existing organisms and plants. The proposed THGEM detector removes the necessity of expensive electronic amplifiers in conventional C-14 detectors. It is expected that the THGEM can be efficiently used in C-14 dating and determine the radioactive contamination caused by radiocarbon in plants and the environment.

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