Production, characterization, and selection of the heating elements for the response stabilization of the CUORE bolometers
Production, characterization, and selection of the heating elements for the response stabilization of the CUORE bolometers
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DOI：
10.1016/j.nima.2011.10.065
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发表时间：
2012-02-01
影响因子：
1.4
通讯作者：
Tenconi, Margherita
中科院分区：
文献类型：
--
作者：
Andreotti, Erica;Brofferio, Chiara;Tenconi, Margherita
在一年或更长的时间内运行测辐射热探测器时，关键问题之一是尽管低温装置不可避免地存在温度波动，但仍要将其响应稳定在0.1%的水平内。通过使用能量脉冲器，它周期性地在吸收体中传递固定数量的能量，可以稳定测辐射热计的响应。在CuORE实验的框架内，开发了一种使用加热装置的稳定技术，该加热装置由重掺杂半导体材料(远高于金属到绝缘体的转变)组成。本文详细描述了基于硅平面工艺的加热元件的实现过程。然后，我们报告了加热器的多步低温特性(77K，4.2K，1.5K，35MK)。最后，给出了一个实现类CuORE探测器稳定性的例子。在类似的1.5K下测试的1500个加热器，在30mV到3 mV之间的电阻变化小于0.5%，在50mK到800mK之间的值变化小于1%。尤其是在4.2K和1.5K之间的电阻变化小于0.1%。(C)2011爱思唯尔B.V.保留所有权利。
One of the critical issues while operating bolometric detectors over periods of time of 1 year or more consists of keeping their response stable within a 0.1% level, despite the unavoidable temperature fluctuations of the cryogenic set-up. By using an energy pulser, which periodically delivers a fixed amount of energy in the absorber, it is possible to stabilize the response of the bolometers. A stabilization technique using heating devices, made up of heavily doped semiconductor material (well above the metal-to-insulator transition), has been developed in the framework of the CUORE experiment. In this paper we describe in detail the procedure for the realization of the heating elements, based on silicon planar technology. We then report on the multi-step low temperature characterization (77 K, 4.2 K, 1.5 K, 35 mK) of the heaters. Finally, an example of achieved stabilization for a CUORE-like detector is reported. The similar to 1500 heaters tested at similar to 1.5 K show less than 0.5% change in resistance between 30 mu V and 3 mV, and less than 1% change in value between 50 mK and 800 mK. In particular, the resistance change between 4.2 K and 1.5 K is less than 0.1%. (C) 2011 Elsevier B.V. All rights reserved.