Abstract We have developed a low-energy particle experiment that alternately measures ions and electrons in space. The ability to switch between ion and electron measurements is achieved by simply adding ultra-thin carbon foils and positive and negative outputs to a conventional top-hat electrostatic analyzer and a high-voltage power supply. respectively. The advantage of this experim... https://www.mariameetsanna.com/product-category/hair-dryer-sponge-diffuser/