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arXiv 1804.05941physics.ins-dethep-ex
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时间投影室导线张力电测新方法

A Novel Electrical Method to Measure Wire Tensions for Time Projection Chambers

D. Garcia-Gamez, V. Basque, T. G. Brooks, J. J. Evans, M. Perry, S. Söldner-Rembold, F. Spagliardi, A. M. Szelc

摘要:

提出了一种新的电学方法来测量多丝漂移室中丝的张力。我们通过在交流信号($V_{\rm AC} \pm V_{\rm DC}$)上叠加正负直流电压来偏置测试导线两侧的相邻导线,从而产生交变电场。所产生的导线振荡将在其固有频率处显示谐振,并且电容的相应变化将导致可测量的电流。该方案可扩展到多根导线,因此使我们能够在短时间内精确测量大量导线的张力。这种技术也可以应用在低温下,使其成为未来大型时间投影室(如DUNE探测器)的有吸引力的解决方案。我们提出的概念,一个例子的实施和它的性能在现实世界中的情况下,并讨论了电压和电线长度方面的系统的灵敏度的限制。

英文摘要:

We present a novel electrical technique to measure the tension of wires in multi-wire drift chambers. We create alternating electric fields by biasing adjacent wires on both sides of a test wire with a superposition of positive and negative DC voltages on an AC signal ($V_{\rm AC} \pm V_{\rm DC}$). The resulting oscillations of the wire will display a resonance at its natural frequency, and the corresponding change of the capacitance will lead to a measurable current. This scheme is scalable to multiple wires and therefore enables us to precisely measure the tension of a large number of wires in a short time. This technique can also be applied at cryogenic temperatures making it an attractive solution for future large time-projection chambers such as the DUNE detector. We present the concept, an example implementation and its performance in a real-world scenario and discuss the limitations of the sensitivity of the system in terms of voltage and wire length.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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