The paper describes recent developments of diamond detector at CNS and discusses the timing signal transfer system suitable for optimizing its performance. The diamond detector is well known to have good properties as a radiation detector such as fast response and good radiation hardness. Consequently, it is an excellent candidate for serving as a high-resolution thin timing detector. CNS and NSCL/MSU started a collaboration to develop diamond detectors, and manufactured a detector with a size of 28 × 28 mm 2 and thickness of 200 μm. An irradiation experiment of the detector was performed by using a 32-MeV α beam to check its basic performance. The CNS detector had almost 100% efficiency and a timing resolution of 27 ps (σ). Jitter in long optical-fiber signal-transfer lines was examined and found to be 10.7 ps (σ). Diamond detectors and signal transfer system using a optical fiber enable us to provide time-of-flight measurements with extremely high resolution.
|ジャーナル||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|出版ステータス||出版済み - 12 15 2013|
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