Material mixture solution analysis by a hybrid L-edge/L-XRF densitometer

Sungyeop Joung; Yewon Kim; Seunghoon Park

doi:10.1016/j.apradiso.2019.01.001

Material mixture solution analysis by a hybrid L-edge/L-XRF densitometer

Appl Radiat Isot. 2019 Apr:146:1-4. doi: 10.1016/j.apradiso.2019.01.001. Epub 2019 Jan 11.

Authors

Sungyeop Joung¹, Yewon Kim¹, Seunghoon Park²

Affiliations

¹ Korea Institute of Nuclear Nonproliferation and Control, Yuseong-daero 1534, Yuseong-gu, Daejeon 34054, Republic of Korea.
² Korea Institute of Nuclear Nonproliferation and Control, Yuseong-daero 1534, Yuseong-gu, Daejeon 34054, Republic of Korea. Electronic address: shpark@kinac.re.kr.

PMID: 30677562
DOI: 10.1016/j.apradiso.2019.01.001

Abstract

The hybrid L-edge/L-XRF densitometer (HLED) was developed for determining the concentrations of nuclear materials in solutions by combination of two complementary assay techniques, L-edge densitometry (LED) and X-ray fluorescence (XRF). In this study, nonradioactive surrogate material mixture solutions (gold as a major analyte and lead as a minor analyte) were evaluated for feasibility for the multi-element nuclear material assay by hybrid analysis of LED and L-XRF, and the major analyte was characterized using L-edge densitometry. The exponential calibration method of material mixture solution for L-XRF is proposed considering the total density with matrix effects. The method was verified through analysis of uncertainties, biases and comparison with International Target Value (ITV).

Keywords: L-XRF; L-edge; Nuclear material solution; X-ray absorption; X-ray fluorescence.