Abstract
In this paper, we performed a feasibility study of using a water-based liquid scintillator (WbLS) for conducting imaging analysis with a digital camera. The liquid scintillator (LS) dissolves a scintillating fluor in an organic base solvent to emit light. We synthesized a liquid scintillator using water as a solvent. In a WbLS, a suitable surfactant is needed to mix water and oil together. As an application of the WbLS, we introduced a digital photo image analysis in color space. A demosaicing process to reconstruct and decode color is briefly described. We were able to estimate the emission spectrum of the fluor dissolved in the WbLS by analyzing the pixel information stored in the digital image. This technique provides the potential to estimate fluor components in the visible region without using an expensive spectrophotometer. In addition, sinogram analysis was performed with Radon transformation to reconstruct transverse images with longitudinal photo images of the WbLS sample.
Highlights
We were able to estimate the emission spectrum of the fluor dissolved in the water-based liquid scintillator (WbLS) by analyzing the pixel information stored in the digital image
Most WbLS research groups have mainly focused on finding a new surfactant, and water and surfactant are mixed
We synthesized a WbLS based on the HLB index value of surfactant
Summary
The first was to develop a new liquid scintillator using water as the main base solvent. Most WbLS research groups have mainly focused on finding a new surfactant, and water and surfactant are mixed. We synthesized a WbLS using only a combination of water, surfactant, and fluor according to the HLB index value. We investigated the possibility to reconstruct the dissolved fluor components in a WbLS by analyzing photographic images taken with a digital camera (EOS 450D, manufacturer: Canon, Seoul, Korea) equipped with a CMOS (APS-C sensor, manufacturer: Sony, Seoul, Korea) image sensor. We tried to show that two-dimensional images could be reconstructed from projection data obtained from various directions of a WbLS sample. A tomographic image, or an axial cross-section image based on the reference line, was reconstructed by sinogram or Radon transformation
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