| 摘要 |
PURPOSE:To obtain a specimen to be microscopically examined faithful to an original specimen used in the examination due to an electron microscope within a short time, by such simple operation that metal In is pressed to the surface to be examined to fabricate one stage replica and a second replica is fabricated from said one stage replica by cellulose acetate. CONSTITUTION:Metal In is pressed to the surface to be examined of a rotary grinder by a hand presser and the uneveness of the specimen surface is transferred to In to obtain one stage replica. In the next step, 2-3 drops of acetone are dripped on the surface of said replica while a cellulose acetate film is adhered from above so as to exclude air bubbles and, after acetone is volatilized, said cellulose acetate film is peeled off to obtain a second stage replica. This second stage replica is fixed to the specimen stand of a scanning type electron microscope so as to upwardly direct the uneven surface thereof and, after a silver paste is applied to the periphery of the replica, gold is vapor deposited to the uneven surface to take a photograph while performing microscopic examination. By this method, the excellent two-stage replica is simply obtained within a short time. In addition, the one stage replica can be made preservable for a long time and can be used at a necessary time. |
