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Description
Efficient use of gaseous and liquid helium, a non-renewable resource essential for accelerator-based experiments, is a key priority at ALBA Synchrotron Light Source. This work presents the operational status of ALBA’s helium liquefaction plant and the liquid-helium production achieved in recent years, based on recovery from its use in the BOREAS, LOREA, CLAESS and MSPD beamlines. The helium liquefaction plant’s operating mode is discussed, with emphasis on its main limitation: the system can only process recovered gas with an average helium purity of 99.5%. To overcome this constraint, the plant was upgraded during 2025–2026 with the installation of a gas purifier capable of treating gas helium with purities as low as 90%. The first operational results and performance of the helium liquefaction plant with the integrated purifier are presented.
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