Proposal of a Compact Neutron Diffraction System with a Single-Flux-Quantum Signal Processor
Proposal of a Compact Neutron Diffraction System with a Single-Flux-Quantum Signal Processor
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具有单通量量子信号处理器的紧凑型中子衍射系统的提议
DOI：
10.1587/transele.e94.c.254
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
T. Ishida
中科院分区：
文献类型：
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作者：
A. Fujimaki;Isao Nakanishi;S. Miyajima;K. Arai;Y. Akita;T. Ishida
提出了一种基于MgB2薄膜探测器和SFQ信号处理器的中子衍射仪系统。MgB2薄膜探测器的小尺寸和单通量量子（SFQ）电路的高处理能力使我们能够在制冷机中处理数千个或更多的探测器，从而形成一个非常紧凑的系统。此外，该系统可以同时提供不同动能下的多种衍射图样。利用SFQ时间-数字转换器（tdc），通过飞行时间法确定了单个中子的动能。tdc的数字输出在时域内进行多路复用，并通过减少电缆数量发送到室温电子设备。成功地演示了一种包括tdc和多路复用器的双输入SFQ信号处理器，其时间分辨率为20ns，功耗为400μW。这些数值表明本文提出的中子衍射系统具有很高的可行性。
We propose a neutron diffractometer system based on MgB2 thin film detectors and an SFQ signal processor. Small dimensions of MgB2 thin film detectors and high processing capability of the single flux quantum (SFQ) circuits enable us to handle several thousand or more detectors in a cryocooler, leading to a very compact system. In addition, the system can provide many diffraction patterns for different kinetic energies simultaneously. Kinetic energy is determined for individual neutrons by means of the time-of-flight method by using SFQ time-to-digital converters (TDCs). Digital outputs of the TDCs are multiplexed in time domain and sent to room-temperature electronics with reduced number of cables. A dual-input SFQ signal processor including TDCs and a multiplexer has been successfully demonstrated with a time resolution of 20ns and power consumption of 400μW. These values show high feasibility of the neutron diffraction system proposed here.
超导MgB2薄膜中子探测器
DOI：
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发表时间：
2007
期刊：
影响因子：
--
作者：
T. Ishida;M. Nishikawa;Y. Fujita;S. Okayasu;M. Katagiri;K. Satoh;T. Yotsuya;H. Shimakage;S. Miki;Z. Wang;M. Machida;M. Kate
通讯作者：
M. Kate