Extractive-scintillating resin produced by radiation polymerization

Radiation polymerization and crosslinking: A viable alternative for synthesis of porous functional polymers

“…The results showed that the ability of our resin matrix to detect radioactivity is just as good as of the standard liquid scintillation cocktail generally used in liquid scintillation spectroscopy for the detection of alpha/betaemitting nuclides (Vincze et al, 2007b). Considering that the ionbinding capacity of this resin is also excellent (Vincze et al, 2007a) with a maximum in the pH range 5-7, this makes it ideal for the continuous monitoring of natural water samples.…”

Creating monodisperse polymer microspheres using membrane emulsification

“…Flow-cell detectors that utilize columns packed with extractive scintillating resins have emerged as an analytical tool for the ultra-low-level detection of aand b-emitting radionuclides in the environment. [1][2][3][4][5][6][7][8][9][10][11][12][13] These extractive resins oftentimes comprise microspheres of polystyrene or poly(4-methylstyrene) with organic fluors and extractants (ligands) that are selective for the target radionuclide(s). The ligands bind and concentrate the radionuclide(s), thus allowing the nearby fluors to scintillate.…”

Evaluation of resin radius and column diameter for the implementation of extractive scintillating resin in flow-cell detectors

“…The use of extractive scintillating resin in flow-cell detectors has emerged as a promising technology for the detection of various radioisotopes such as iodine-129 [1], technetium-99 [2], strontium-90 [3], carbon-14 [4], tritium and uranium [5]. The implementation of this type of flowcell detection system hinges upon the optimization of resin design, detection geometry and testing conditions.…”

“…Ayaz and DeVol [4] coated a scintillating PVT resin with MnO 2 and achieved detection efficiencies of 17-37 % for uranium in neutral water samples using a traditional liquid scintillation counter (LSC) to quantify the sorbed activity. The most recent generation of extractive scintillating resins contain covalently bound fluorophores and extractive ligands to enhance the long-term stability of the polymer sensor [3]. Several detection geometries have been studied including a single photomultiplier tube (PMT), dual PMT continuous flow-cell detector, and a traditional scintillation counter, all of which utilize a resin packed column.…”

“…Several detection geometries have been studied including a single photomultiplier tube (PMT), dual PMT continuous flow-cell detector, and a traditional scintillation counter, all of which utilize a resin packed column. Bead and column diameter have been shown to affect the detection efficiency for beta-emitting radionuclides [3,6,7]; however, no systematic studies have been conducted to determine the effect of operating parameters on detection efficiency for alpha-emitting radionuclides. The objective of this research was to study the effect of column diameter, bead size, and location of the alpha decay event within the flow-cell on detection efficiency of uranium for flow-cell detectors.…”