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Description
Cloud chambers were one of the first particle detectors and, even today, are very popular devices in discussions and demonstrations about particle physics. The simplest models use dry ice to create the temperature gradient necessary for visualizing particle tracks. However, despite its relative simplicity, dry ice is not always easy to find. Furthermore, even when dry ice is found, it sublimates quickly, making its storage difficult.
This work highlights the proposal for construction of a prototype in which dry ice has been replaced by Peltier modules, in order to have a device that could be used permanently. To this end, the operating process of Peltier modules and their association to achieve the necessary temperatures were analyzed. An instrumentation study related to the assembly of the prototype was also carried out, considering the electrical connections that should be used and the mechanical elements necessary for assembly. From there, tests were performed to establish the best materials and parameters for the construction of the prototype. The prototype's validation was achieved by visualizing tracks of the same types as those observed in cloud chambers with dry ice.
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