Yb-169線源を用いた放射線透過試験における透過写真の像質

抄録

A low energy γ-ray source, Ytterbium-169 (Yb-169), has been produced in the Japan Atomic Energy Research Institute to apply to the industrial fields in the near future. In this paper, the results of experiments on the characteristics of the source for industrial radiography and the image quality of a radiograph including calculation were described. The used material is the stainless steel, SUS 304, up to 12 mm in thickness. The number of the perceptible wires of the JIS type image quality indicator using Yb-169 is smaller by 4-5 for the specimen of 1 mm in thickness, 2-3 for 3 mm and 1-2 for 5-12 mm than that perceived using Iridium-192 (Ir-192).