位置検出比例計数管によるX線応力測定 (<小特集>X線材料強度小特集)

概要

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The position sensitive proportional counter (PSPC) is capable of providing accurate positional informations with high resolving power and high count rate capability. If the PSPC system is applied in the field of X-ray stress measurements, the following features can be anticipated ; (1) No goniometer is necessary. (2) Stress analysis can be accomplished at a high speed unequaled by any conventional method in use today. In the present paper, the application- of PSPC for stress measurement is reported. A new type PSPC having 85 mm long of effective length was made, in which the position sensitivity is acheived by measuring the electric charge of output pulses from a proportional counter having a high resistance cathode. A spatial resolution of 230 μm was obtained over the full length of the detecter. Stress measurement was performed on several bending type specimens of carbon steel. The difference in stress measured by this system between load on and load off was in close agreement with that measured by the wire strain gage method. The time required for the stress analysis was reduced to 1/5〜1/10 of that with the conventional counter method.
社団法人日本材料学会の論文
1978-03-15