Synthesis of C labeled C with higher specific radioactivity.

In this paper, we report the production of C[C] with the highest specific radioactivity to date by improving of previously reported method. To avoid the loss of C, the porous carbon after adsorbing C labeled furan resin was sintered by 'Baking' method instead of heating at 1,000 °C in the electric furnace. As a result of this improvement, the specific radioactivity of the produced C[C] was found to be 0.958 MBq/mg (18.7 mCi/mmol). This is the highest specific radioactivity among those reported to date. [ABSTRACT FROM AUTHOR]