An apparatus and method for automatically dispensing a radioactive dose by filling a container, such as a vial or disposable syringe, with a required radioactive dose in a sterile environment; the apparatus being stand alone and radioactive-shielded. The housing of the TMP is significantly modified to accommodate the associated equipment necessary for constructing a high-vacuum system. The flow splitter may include an inner chamber for collecting the first fluid and an outer chamber for collecting the second fluid. The blade is movable by sliding, pivoting or deflecting on a cantilever mounting and is movable between a retracted position within the chamber and an extended position projecting outwardly to engage and cut the substrate. Further, a length of the channel region of the silicon layer is parallel with the growth direction in the SGS growth region to improve the electrical properties thereof.