Transparent lithium-6 based polymer scintillation films containing a polymerizable fluor for neutron detection

Recent progress of organic scintillators

“…Among the isotopes to be loaded, 6 Li has been loaded as lithium salicylate, 104,105) various lithium carboxylates, 106) lithium pivalate, 95) or Li-salt of 3-phenylsalicylic acid. 24) In addition, 6 Li has been loaded in host polymers, 107,108) for example, poly[styrene-co-lithium maleate-co-2-phenyl-5-(4-vinylphenyl)oxazole]. 107) The scheme and the chemical structure are presented in Fig.…”

Plastic scintillators modifications for a selective radiation detection

“…Lithium has been less studied due probably to the lower cross section and the highly diffusive nature of organolithium compounds. Recently several improvements have been reported, with the use of dopants such as lithium pivalate [ 17 ] or lithium (phenyl)salicylate [18], or as co-monomers, in the form of lithium methacrylate [19] or lithium maleate [20] (Figure 7). Figure 6.…”

Methacrylate-Functionalized 2,5-Diphenyloxazole for Use as Fluorescent Monomers in Plastic Scintillators

“…A promising alternative to improve plastic scintillator properties, such as dopant aggregation and leaching, is to covalently attach the dopant to the matrix via copolymerization. This approach has recently been reported in the literature , with 50 wt % of a cross-linkable derivative of 9,10-diphenyl­anthracene (DPPA), resulting in a scintillator with relatively low PSD . Furthermore, DPPA required a five-step synthetic process with pyrophoric reagents and a low overall reaction yield which is not ideal for large-scale synthesis needed to commercialize this technology.…”