高エネルギー粒子照射材料透過電子顕微鏡写真, ca.1985-1997. Transmission Electron Microscopy Photographs of Materials irradiated by High-Energy Particle, ca.1985-1997.

高エネルギー粒子の材料照射実験は，材料に欠陥を導入する手段として，また照射下で使用される材料の特性試験として幅広く行われている。本資料は，金属材料を中心としたさまざまな材料に高エネルギー粒子照射を行いその後に電子顕微鏡観察した結果を記録した写真のネガフィルムで，さまざまな形態の照射欠陥像が撮影されている。幅広い実験条件を網羅するだけでなく，現在研究用等原子炉や加速器などの照射設備の運転停止や運転条件変更により実施できなくなった実験条件で得られた，希少な照射材料の撮影結果を含む。 Material irradiation experiments using high-energy particles are conducted as a means of introducing defects into the material and as a property test of the material used under irradiation. This collection consists of negative films that record the results of electron microscopic observations of various materials, mainly metals irradiated with high-energy particles, and various morphologies of irradiation damages are captured. These photographs not only cover results of wide-ranging experimental conditions, but also include rare observations of irradiated materials that were obtained under the conditions that are no longer available due to the shutdown or change in the operating conditions of irradiation facilities such as research reactors and accelerators.