W7x has a pellet injection system now. This is shared in the better article here: https://www.ipp.mpg.de/5532945/w7x https://www.ipp.mpg.de/5532945/w7x > Duri

W7x has a pellet injection system now. This is shared in the better article here: https://www.ipp.mpg.de/5532945/w7x https://www.ipp.mpg.de/5532945/w7x > During the record-setting experiment, about 90 frozen hydrogen pellets, each about a millimeter in size, were injected over 43 seconds, while powerful microwaves simultaneously heated the plasma. Precise coordination between heating and pellet injection was crucial to achieve the optimal balance between heating power and fuel supply.