木材の周期構造解析II : 放射組織配列の二次元的解析(<小特集>木質材料小特集)

概要

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The distribution of rays was traced by placing regular-sized small dots at the center of all rays of tangential sections in sugi(Cryptomeria japonica) and tochinoki (Aesculus turbinata) to produce"dot maps". These dot maps were set on an optical Fourier transform equipment in such a way that the axial direction of the dot maps corresponded to the vertical line. The diffaracton patterns which reflect only the arrangement information of rays were recorded on photographic films. The diffraction patterns of rays showed characteristic spots only on the equator in sugi and on the meridian in tochinoki. For the interpretation of these diffraction patterns some mathematical treatments were introduced. As the result, the arrangement of these rays on an arbitrary direction swas shown to be detectedby densitometry of the diffraction pattern allong the direction through the origin. Ths method is useful to the two-dimensional analysis of the distribution of many tissues or cells of wood.
社団法人日本材料学会の論文
1989-07-15