For several years, three US Department of Energy national labs have worked together to further improve state-of-the-art particle accelerator technology. First tests of a prototype built at Fermi National Accelerator Laboratory (Fermilab, CSA CSM) show the effort has paid off, with a new component setting records.

Every week since the beginning of November, a tube trailer filled with approximately 4,600 cubic meters (750 kg) of compressed gaseous helium delivers its load to the ITER cryoplant in the south of France. At a later stage, the deliveries will become more massive, as helium is delivered in liquid form in 25,000-cubic-meter (4-tonne) cryogenic containers. Progressively, the helium inventory in the cryoplant will reach the volume required to accommodate the different “clients” inside the tokamak: the lion’s share for the superconducting magnets and the cryogenic pumping system, a smaller percentage for the cryostat shielding.