| CPC H05H 3/06 (2013.01) [H05H 6/00 (2013.01)] | 13 Claims |
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1. An apparatus comprising:
a particle beam generation device that generates a charged particle beam;
a target structure that generates neutrons when irradiated with the charged Particle beam, the target structure comprising:
a target plate comprising a central area on which the charged particle beam impinges and a peripheral area on which the charged particle beam does not impinge; and
a cooling member formed of a metallic material, the cooling member including a front surface facing the charged particle beam to which the target plate is directly or indirectly joined, a back surface opposite the front surface, and a flow path for flowing cooling liquid including hydrogen atoms formed between the front surface and the back surface,
wherein the charged particle beam travels in a thickness direction of the cooling member from the front surface to the back surface; and
a shielding structure surrounding the target structure, the shielding structure having a particle path formed therein, the particle path allowing the charged particle beam to pass through the shielding structure and irradiate only the central area of the target plate,
wherein, when viewed in the thickness direction, entirety of the flow path is offset from the central area of the target plate, and covers an area outside of the central area of the target plate such that no portion of the flow path overlaps with the central area of the target plate.
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