Homogeneity of wheat flour in 5ml containers for certified reference materials

R Furukawa; Y Unno; T Miura; A Yunoki; M Hachinohe; S Hamamatsu

doi:10.1016/j.apradiso.2017.10.014

Homogeneity of wheat flour in 5ml containers for certified reference materials

Appl Radiat Isot. 2018 Apr:134:32-34. doi: 10.1016/j.apradiso.2017.10.014. Epub 2017 Oct 6.

Authors

R Furukawa¹, Y Unno², T Miura², A Yunoki², M Hachinohe³, S Hamamatsu³

Affiliations

¹ National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki, Japan. Electronic address: rio.furukawa@aist.go.jp.
² National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki, Japan.
³ Food Research Institute, National Agriculture and Food Research Organization, 2-1-12 Kannondai, Tsukuba, Ibaraki, Japan.

PMID: 29089236
DOI: 10.1016/j.apradiso.2017.10.014

Abstract

We aimed to develop certified reference materials that could be used for well-type HPGe detector. We chose wheat flour as a sample and evaluated the homogeneity of the sample in well-type container (5ml). Results showed that inhomogeneity was sufficiently small for validation checks of well-type HPGe detector (u_hom = 0.44%).

Keywords: Certified reference materials; Cs-137; Well-type HPGe detector; Wheat flour.