Irradiation target for isotope production and isotope production reactor

The invention discloses an irradiation target piece for isotope production and an isotope production reactor, the irradiation target piece comprises an outer wrapping shell, the outer wrapping shell is a cylinder structure, and the cylinder structure comprises a plurality of wing channels intersected at one point; the wing channels are arranged at equal intervals with the intersection as the center, and a plurality of target piece layers are arranged in the wing channels at equal intervals in the axis direction of the outer wrapping shell. The target piece layer comprises a plurality of irradiation small balls which are arranged in each wing channel at equal intervals in the cross section direction of the outer wrapping shell. Based on the irradiation target piece, the invention further provides a reactor, the irradiation target piece is added between fuel assemblies of the reactor, a plurality of irradiation small balls are arranged in the irradiation target piece, and compared with a traditional technology,