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arXiv 2102.11100physics.ins-det
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金属磁量能器阵列的多通道读出

Multichannel read-out for arrays of metallic magnetic calorimeters

F. Mantegazzini, S. Allgeier, A. Barth, C. Enss, A. Ferring-Siebert, A. Fleischmann, L. Gastaldo, R. Hammann, D. Hengstler, S. Kempf, D. Richter, D. Schulz, D. … 展开作者

F. Mantegazzini, S. Allgeier, A. Barth, C. Enss, A. Ferring-Siebert, A. Fleischmann, L. Gastaldo, R. Hammann, D. Hengstler, S. Kempf, D. Richter, D. Schulz, D. Unger, C. Velte, M. Wegner

摘要:

在毫开尔文温度下工作的金属磁性微量热计(MMC)提供了实现eV级能量分辨率的可能性,其对能量范围高达几十keV的X射线和大质量粒子具有高阻止能力。这激发了它们在粒子物理学、原子和分子物理学等领域的广泛应用。目前的探测器系统由32个两级SQUID读出通道读出的MMC阵列组成。与探测器阵列的设计以及因此前端SQUID的设计(需要针对物理情况和在给定实验中要检测的粒子进行优化)相比,读出链可以标准化。我们提出了我们的新的标准化的32通道并行读出MMC阵列在稀释冰箱中操作的操作。读出系统由探测器模块(其设计取决于特定应用)、放大器模块、从室温到毫开尔文平台的带状电缆和数据采集系统组成。特别是,我们描述了两个64像素阵列的操作的ECHO-1 K实验准备的读出系统的实现。同样的读出概念也用于maXs探测器系统,该系统是为研究X射线对高电荷重离子的去激发而开发的,以及用于MOCCA系统,该系统是为研究分子离子与电子复合时的碎裂而开发的,用于中性分子碎片的能量和位置敏感探测。选择用于32通道MMC阵列操作的标准模块化组件提供了升级检测器模块的灵活性,而无需对读出系统进行任何更改,并且在损坏或故障的情况下可以单独更换部件。

英文摘要:

Metallic magnetic micro-calorimeters (MMCs) operated at millikelvin temperature offer the possibility to achieve eV-scale energy resolution with high stopping power for X-rays and massive particles in an energy range up to several tens of keV. This motivates their use in a wide range of applications in fields as particle physics, atomic and molecular physics. Present detector systems consist of MMC arrays read out by 32 two-stage SQUID read-out channels. In contrast to the design of the detector array and consequently the design of the front-end SQUIDs, which need to be optimised for the physics case and the particles to be detected in a given experiment, the read-out chain can be standardised. We present our new standardised 32-channel parallel read-out for the operation of MMC arrays to be operated in a dilution refrigerator. The read-out system consists of a detector module, whose design depends on the particular application, an amplifier module, ribbon cables from room temperature to the millikelvin platform and a data acquisition system. In particular, we describe the realisation of the read-out system prepared for the ECHo-1k experiment for the operation of two 64-pixel arrays. The same read-out concept is also used for the maXs detector systems, developed for the study of the de-excitation of highly charged heavy ions by X-rays, as well as for the MOCCA system, developed for the energy and position sensitive detection of neutral molecular fragments for the study of fragmentation when molecular ions recombine with electrons. The choice of standard modular components for the operation of 32-channel MMC arrays offer the flexibility to upgrade detector modules without the need of any changes in the read-out system and the possibility to individually exchange parts in case of damages or failures.

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