The HOLMES experiment will perform a precise calorimetric measurement of the end point of the Electron Capture (EC) decay spectrum of Ho in order to extract information on neutrino mass with a sensitivity below 2 eV. In its final configuration, HOLMES will deploy 1000 detectors of low temperature microcalorimeters with implanted Ho nuclei. The baseline sensors for HOLMES are Mo/Cu TESs (Transition Edge Sensors) on SiNx membrane with gold absorbers. Considering the large number of pixels and an event rate of about 300 Hz/pixel, a large multiplexing factor and a large bandwidth are needed. To fulfill this requirement, HOLMES will exploit recent advances on microwave multiplexing. In this contribution we present the status of the activities in development, the performances of the developed microwave-multiplexed readout system, and the results obtained with the detectors specifically designed for HOLMES in terms of noise, time and energy resolutions.

中文翻译：

---

适用于中微子质量测量的TES微量热仪探测器研制进展

HOLMES 实验将对 Ho 的电子捕获 (EC) 衰变谱的终点进行精确的量热测量，以便以低于 2 eV 的灵敏度提取有关中微子质量的信息。在其最终配置中，HOLMES 将部署 1000 个带有植入 Ho 核的低温微量热计探测器。HOLMES 的基准传感器是在 SiNx 膜上带有金吸收剂的 Mo/Cu TES（过渡边缘传感器）。考虑到大量的像素和大约300Hz/像素的事件率，需要大的复用因子和大的带宽。为满足这一要求，HOLMES 将利用微波复用方面的最新进展。在这篇文章中，我们介绍了开发活动的状态，开发的微波多路复用读出系统的性能，