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Development of a method to measure trace level of uranium and thorium in scintillation films
- Source :
- Progress of Theoretical and Experimental Physics, Volume 2024, Issue 6, June 2024, 063H01
- Publication Year :
- 2024
-
Abstract
- We have established a method to measure picograms-per-gram (pg g$^{-1}$) levels of $^{238}$U and $^{232}$Th in scintillation films by combining the dry ashing method and inductively coupled plasma mass spectrometry. Trace amounts of $^{238}$U and $^{232}$Th were measured in up to 2~g of the 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 $^{238}$U and $^{232}$Th, and measurement of $^{238}$U and $^{232}$Th in a polyethylene naphthalate film. This method is also applicable to $^{238}$U and $^{232}$Th measurements in other low-background organic materials for rare event search experiments.
- Subjects :
- Physics - Instrumentation and Detectors
Subjects
Details
- Database :
- arXiv
- Journal :
- Progress of Theoretical and Experimental Physics, Volume 2024, Issue 6, June 2024, 063H01
- Publication Type :
- Report
- Accession number :
- edsarx.2405.04901
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1093/ptep/ptae071