标题： 液氙中的电致发光和电荷倍增现象，类似于VCC的微条板 显示英文标题

标题： Electroluminescence and charge multiplication in liquid xenon with a VCC-like Microstrip Plate

摘要： 我们报道了首次在虚拟阴极室（VCC）微条板上观察到电致发光和电荷放大现象，该微条板浸没在液氙中。 这两种现象均在靠近2-$\mu$米窄阳极条带的强烈非均匀电场中被观测到，这些阳极条带以2毫米的间距沉积在导电玻璃基底（S8900）上，并在其背面镀有阴极膜。 测量到了每个漂移电子初始产生 $\sim$460 个真空紫外光子的发光产额，这一数值在几十分钟内逐渐下降并在 (27.0~$\pm$~3.1)~个光子/电子范围内稳定下来。 电致发光伴随着电子倍增，估计电荷增益达到 $<$10。 需要进一步研究来理解和缓解发光产额下降的现象。 我们预计其他基底材料，包括真空紫外透明材料，将提供大且稳定的光子产额，与我们的模型预测一致。 VCC 配置在单相惰性液体探测器中表现出巨大潜力，特别是在暗物质搜寻、中微子物理和其他领域。 显示英文摘要

摘要： We report on the first observation of electroluminescence and charge amplification with a Virtual Cathode Chamber (VCC) microstrips plate immersed in liquid xenon. Both were observed in an intense non-uniform electric field in the vicinity of 2-$\mu$m narrow anode strips deposited, with a 2~mm pitch, on a semiconductive glass substrate (S8900), with a cathode film on its backside. An initial light yield of $\sim$460 VUV photons per drifting electron was measured, which degraded within tens of minutes stabilizing at (27.0~$\pm$~3.1)~photons per electron. The electroluminescence was accompanied by electron multiplication with an estimated charge gain $<$10. Further investigations are necessary to understand and mitigate the light yield degradation phenomenon. We expect other substrate materials, including VUV-transparent ones, to provide large stable photon yields, compatible with our model predictions. The VCC configuration has demonstrated great potential in single-phase noble-liquid detectors, particularly for dark-matter searches, neutrino physics and other fields.