Spindler & Hoyer Göttingen

grabcad

You've stumbled upon something perplexing - maybe someone else knows what this is or how it was utilized? Edit: It seems that Qioptiq has offered some insight into its origins, which can be seen in the description below. Based on available information, I would take a guess: this device could be connected to electro-optic experiments, and possibly tied to a vacuum pump.Description: This unusual object is indeed an "expansion cloud chamber", conceptualized by Charles Thomson Rees Wilson's innovative design. The principle behind such contraptions lies in making Alpha and Beta radiation visible by utilizing a dense fog consisting predominantly of alcohol. This would be made possible by incorporating features like the felt ring to absorb any stray droplets of the alcohol-water solution, alongside the nozzle creating pressure differentials thanks to an external pump's mechanical energy.