Investigation of Leslie Radiation Source in PASCO Experiment

Leslie radiation source is a heat source in PASCO thermal radiation experiment apparatus, and it is an aluminum cube that has four different surfaces. The relation among surface radiation and surface temperature and surface position is studied by experimentally measuring radiation of the different surfaces of Leslie radiation source. Besides, experimental basis for the fact that small holes on a rough surface do not form a blackbody is also obtained through the above measurement. It can be seen from the analysis of the collected data that experimental results shows a good accordance with theory and the result, and it can serve as a guidance for thermal radiation detection.