Development and performance analysis of a PIPS-based detection system for ultra-low Strontium-90 measurement in seawater

• Published in: Nuclear engineering and technology Vol. 57; no. 11; p. 103797
• Main Authors: Kim, Younghak, Kim, Hyuncheol, Jang, Mee, Seo, Jaehyeon, Kim, Gahyun, Cha, Hyemi
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2025; Elsevier; 한국원자력학회
• Subjects: Background reduction; Marine radioactivity; Passivated implanted planar silicon detectors; Strontium-90 analysis; 원자력공학; Marine radioactivity; Passivated implanted planar silicon detectors; Strontium-90 analysis; Background reduction

Strontium-90 (Sr-90) is a key radionuclide for monitoring because of its origin, physicochemical properties, and potential harm to human health. This radionuclide moves with seawater because of its high solubility and is found at trace levels, typically below 1 mBq/kg. Therefore, chemical pretreatme...