Intense fluxes of reactor antineutrinos offer a unique possibility to probe the fully coherent character of elastic neutrino scattering off atomic nuclei. In this regard, detectors face the challenge to register tiny recoil energies of a few keV at the maximum. The Conus experiment was installed in 17.1 m distance from the reactor core of the nuclear power plant in Brokdorf, Germany, and was designed to detect this neutrino interaction channel by using four 1 kg-sized point contact germanium detectors with sub-keV energy thresholds. This report describes the unique specifications addressed to the design, the research and development, and the final production of these detectors. It demonstrates their excellent electronic performance obtained during commissioning under laboratory conditions as well as during the first 2 years of operation at the reactor site which started on April 1, 2018. It highlights the long-term stability of different detector parameters and the achieved background levels of the germanium detectors inside the Conus shield setup.

反应堆中微子的强通量提供了一种独特的可能性，可探究弹性中微子从原子核中散射出来的完全相干特性。在这方面，探测器面临着最大记录几keV的微小反冲能量的挑战。该芋实验安装在距德国布罗克多夫核电站反应堆堆芯17.1 m的距离处，并通过使用四个具有1 keV能量阈值的1 kg尺寸的点接触锗探测器设计来检测该中微子相互作用通道。本报告描述了针对这些探测器的设计，研发和最终生产的独特规格。它展示了其在实验室条件下调试期间以及在2018年4月1日开始的反应堆现场运行的前两年中获得的出色电子性能。它着重说明了不同检测器参数的长期稳定性以及所达到的背景水平Conus屏蔽装置内部的锗探测器的一部分。