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岸本 俊二*; 三井 隆也; 春木 理恵*; 依田 芳卓*; 谷口 敬*; 島崎 昇一*; 池野 正弘*; 斉藤 正俊*; 田中 真伸*
Journal of Instrumentation (Internet), 10(5), p.C05030_1 - C05030_6, 2015/05
被引用回数:6 パーセンタイル:28.09(Instruments & Instrumentation)We developed an X-ray detector system using a 64-pixel silicon avalanche photodiode Si-APD linear array and fast pulse-counting electronics for multichannel scaling. The Si-APD linear array consists of 64 pixels each 0.010.02 cm in size, with a pixel pitch of 0.015 cm and depletion depth of 0.001 cm. The fast electronics, consisting of an ultrafast application-specific integrated circuit and field-programmable gate arrays, can record both the position and timing of X-rays arriving at each pixel of the linear array with 1 ns pulse-pair resolution. The count distribution was measured using 14.4 keV synchrotron X-rays for nuclear resonant forward scattering experiments on Fe, and the spatial resolution was improved by inclining the detector. We also successfully measured amorphous alloy FeSiB during heating.