Ionic liquids as solvents for Čerenkov counting and the effect of a wavelength shifter

MIRENDA, M.; RODRIGUES, D.; FERREYRA, C.; ARENILLAS, P.; SARMIENTO, G.P.; KRIMER, N.; JAPAS, M.L.

APPLIED RADIATION AND ISOTOPES

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2018

0969-8043

We study the wavelength shift of the Čerenkov light ?generated in theionic liquid (BMIMCl)? caused by the addition of the highly fluorescent ionicliquid (BMIMHPTS). 18Fand 32P efficiencies increases up to 124% and 14%, respectively,compared with the values obtained with pure BMIMCl. With this improvement ionicliquid mixtures become a good alternative when using the TDCR-Cherenkovtechnique, to standardize radionuclides having electron emissions energies closeto the threshold energy in water (~260 keV). As anadvantage compared with other solvents, the Ionic liquid mixture can be reused,in the case of short-lived radionuclides, by simply removing all water contentin a vacuum oven.