Experimental optimization of physicochemical factors for spontaneous deposition of 210Po using newly designed deposition kit

Hyeon-Woo Lee; Jung-Seok Chae

doi:10.1016/j.apradiso.2023.110835

Experimental optimization of physicochemical factors for spontaneous deposition of ²¹⁰Po using newly designed deposition kit

Appl Radiat Isot. 2023 Jul:197:110835. doi: 10.1016/j.apradiso.2023.110835. Epub 2023 Apr 30.

Authors

Hyeon-Woo Lee¹, Jung-Seok Chae²

Affiliations

¹ Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, South Korea.
² Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, South Korea. Electronic address: jschae@kins.re.kr.

PMID: 37146468
DOI: 10.1016/j.apradiso.2023.110835

Abstract

A simple spontaneous deposition kit for ²¹⁰Po determination using alpha spectrometry was newly designed, and polonium deposition characteristics under various physicochemical conditions were evaluated using it. The high-purity silver disc (99.99%) showed high deposition efficiencies of over 85.1% in the HCl concentration range of 0.01-6 M. Optimal physicochemical factors were determined to be a temperature of 90 °C, deposition time of 90 min, and the use of ascorbic acid as a reducing agent in an amount similar to that of the interfering element (Fe).

Keywords: (210)Po; Alpha spectrometry; Silver disc; Spontaneous deposition.