X線応力測定のためのディフラクトメータの改良

自動焦点追跡装置の broad な回折線への利用

抄録

For the purpose of making precise stress measurement by means of an X-ray diffractometer an automatic focusing apparatus was devised and reported in our previous paper, together with the results of some experiments of its application to the sharp diffraction lines.
In this paper, the application of this apparatus to the broad lines obtained on the bearing steels is described in which difficulty is usually experienced in locating their diffraction peaks exactly.
The determination of location of the peaks was performed by using D.P. Koistinen's three point parabola method, and the exact peak positions were experimentally obtained by correcting the diffracted intensity curves by using two factors, namely L.P.A. factor and the factor variable for the distance between the specimen and the Geiger-tube slit which is decided by the focusing condition.