Patent ID: 8073095
Filing Date: 2011-12-06
Classification: G21G,H05H,Y10T

Abstract:
1. A F-18 production target system, which produces F-18 by means of a nuclear reaction of protons and H 2 18 O, the F-18 production target system, comprising: a frame, which has a shape of a cylinder with a central portion of which is bored, holding the H thin sheets, which are installed on opposite sides of the frame so as to seal the central portion; an internal support, which is installed in the central portion so as to reduce the deformation of the thin sheets, and annular seal members which are made of polyethylene interposed between the frame and the thin sheets, wherein the internal support protrudes from an inner wall of the central portion toward a center of the central portion, the internal support has a T-shaped cross-section formed by an extension protruding along the inner wall of the central portion and a flange extending perpendicular to the extension, corresponding to a width of the central portion, and the internal support is divided into two parts, which are symmetrical with respect to the through-holes such that opposite ends thereof are spaced apart from the through-holes, wherein the entire internal support is disposed between the thin sheets, the internal support and the frame are made of niobium or titanium, the thin sheets are cooled by circulating helium (He) along the thin sheets at the outside of the thin sheets, and thin sheets are made of niobium or titanium which is 75 μm thick such that the protons accelerated by a cyclotron can easily pass therethrough.