Improvement of the specimen cooling device for the electron microscope
One of the authors and his collaborators (1) have previously reported a cooling device for specimens in electron diffraction and electron microscopy. This was applied for studies on the crystal structure of ice (1, 2), the crystal growth of mercury (1) and the crystal structure of native cellose (3). The cooling device was proved to be useful, since it makes possible to study substances of low melting point and high vapour pressure by electron diffraction and electron microscopy. Furthermore, it can prevent the damage of biological specimens by electron irradiation. But the cooling device mentioned above, was not satisfactory in the following points.
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