A Si-APD array detector for nuclear resonant scattering using synchrotron X-rays and its fast-pulse processing

作者：Kishimoto S^*; Taniguchi T; Tanaka M; Mitsui T; Seto M

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2010, 623(1): 608-609.

DOI：10.1016/j.nima.2010.03.086

• Silicon avalanche-photodiodes
• Pixel detectors
• Fast-pulse processing
• Synchrotron X-rays
• Mossbauer micro-spectroscopy

An 8 x 2 array of silicon avalanche photodiode (Si-APD) was developed as an X-ray detector for the Mossbauer micro-spectroscopy on Fe-57 (nuclear resonant energy: 14.4 key: half-life: 98 us) using synchrotron X-rays. The time resolution Delta T (FWHM) of the Si-APD array detector was 0.3 us in the forward scattering experiments. Ultra-fast frontend circuits have been provided for the Si-APD array with the pixilated position sensitivity. A fast amplifier was first developed using hybrid ICs. Its charge sensitivity was 4 V/pC and the pulse width was 2.3 ns (FWHM).

• 出版日期2010-11-1