Development of a Method to Measure Trace Levels of Uranium and Thorium in Scintillation Films-Reference-Cited by-同舟云学术

Development of a Method to Measure Trace Levels of Uranium and Thorium in Scintillation Films

Published:2024-05-10 Issue:6 Volume:2024 Page:
ISSN:2050-3911
Container-title:Progress of Theoretical and Experimental Physics
language:en
Short-container-title:

Author:

Ichimura K¹^ORCID,Chiba K¹,Gando Y¹²,Ikeda H¹,Kishimoto Y¹³,Kurasawa M¹,Nemoto K¹,Sakaguchi A⁴^ORCID,Takaku Y⁴,Sakakieda Y⁵

Affiliation:

1. Research Center for Neutrino Science, Tohoku University , 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578 , Japan

2. Department of Human Science, Obihiro University of Agriculture and Veterinary Medicine , Inada-cho Nishi 2-11, Obihiro, Hokkaido 080-8555 , Japan

3. Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo Institutes for Advanced Study, The University of Tokyo , 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582 , Japan

4. Institute of Pure and Applied Sciences, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 , Japan

5. Graduate School of Science and Technology, University of Tsukuba , 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 , Japan

Abstract

Abstract We have established a method to measure picograms-per-gram (pg g−1) levels of 238U and 232Th in scintillation films by combining the dry ashing method and inductively coupled plasma mass spectrometry. Trace amounts of 238U and 232Th were measured in up to 2 g of scintillation film with almost 100% collection efficiency. This paper details the experimental procedure, including the pretreatment of the samples and labware, detection limit of the method, collection efficiencies of 238U and 232Th, and measurement of 238U and 232Th in a polyethylene naphthalate film. This method is also applicable to 238U and 232Th measurements in other low-background organic materials for rare-event search experiments.

Publisher

Oxford University Press (OUP)

Link

https://academic.oup.com/ptep/advance-article-pdf/doi/10.1093/ptep/ptae071/57512822/ptae071.pdf

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