Developed by CTR Wilson, the cloud chamber was among the most important experimental apparatuses for observing nuclear phenomena in the first half of the twentieth century. Currently, cloud chambers are used as a didactic resource to teach radiation-matter interactions and other Nuclear Physics phenomena. This paper presents the construction of an electrically cooled cloud chamber. This device enables the observation of several nuclear physics phenomena in places where dry ice and liquid coolants are unavailable. The apparatus comprises a cooling unit based on thermoelectric modules and high-performance heat sinks. The first tracks are observable within 2 min after the instrument is turned on, and it can continue working for long periods, provided that alcohol is replaced. The device enabled the observation of numerous interactions between ionizing radiation and matter using natural and commercial radiation sources.

中文翻译：

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热电云室：一、重新设计和运行

云室由 CTR Wilson 开发，是二十世纪上半叶观察核现象最重要的实验装置之一。目前，云室被用作教学资源来教授辐射-物质相互作用和其他核物理现象。本文介绍了电冷却云室的结构。该设备能够在没有干冰和液体冷却剂的地方观察多种核物理现象。该设备包括基于热电模块和高性能散热器的冷却单元。仪器开机后2分钟内即可观察到第一条轨迹，只要更换酒精，仪器可以继续长时间工作。该设备能够使用天然和商业辐射源观察电离辐射与物质之间的大量相互作用。