Quasi-non-destructive isotopic ratio measurement of boron in irradiated control rod B4C pellets using a home-built reflectron time-of-flight mass spectrometer

► Laser mass spectrometry studies on B4C control rod pellets. ► Boron isotopic analysis in irradiated control rod pellets of FBTR. ► Burn-up of Boron-10 in B4C pellets used in fast reactor core.