Target for Neutron-Generating Device and Manufacturing Method Therefor

摘要

Provided are a long-lived target for a neutron-generating device and a method for manufacturing the target therefore. The target is for a neutron-generating device and includes: a metal substrate retaining a target material; and a metal thin film for sealing that holds the target material at a retention surface X side. The retention surface X side of the metal substrate includes: a frame portion; and an embossed structure including: a plurality of island portions that are surrounded by the frame portion; and the rest recessed portion that is created by decreasing a thickness of a region other than the frame portion and the island portions by a thickness of the target material. The metal thin film and surfaces of the frame portion and the island portions are subjected to hot isostearic pressing (HIP) bonding to seal the target material onto the recessed portion by using the metal thin film.

主权项

1. A target for a neutron-generating device that generates neutrons by using a 7Li(p,n)7Be reaction while lithium as a target material is irradiated with proton beams accelerated by an accelerator, the target comprising:
a metal substrate that retains the target material; and a metal thin film for sealing that seals the target material onto the metal substrate at a retention surface side holding the target material, the metal substrate comprising: on the retention surface side,
a frame portion; andan embossed structure comprising:
a plurality of island portions surrounded by the frame portion, the island portions having the same height as the frame portion; andthe rest comprising a recessed portion that is created by decreasing a thickness of a region other than the frame portion and the plurality of island portions by a thickness of the target material, wherein the metal thin film for sealing is used to seal the target material onto the recessed portion of the metal substrate.