  The increase over the last years of the testing activities related to quantum
systems, SRF cavities for the PIP-II and the LCLS-II projects, as well as
superconducting magnets for the HL-LHC project and Fusion research activities,
has required the addition of a new Helium cryogenic plant into the existing
IB-1 Industrial Cryogenic Test Facility. The new cryogenic plant is composed of
a cryogenic liquefier (Cold Box) able to provide up to 340 L/h, a 4 kL Dewar
and two Mycom compressors providing up to 120 g/s. AL-AT (Air Liquide Advanced
Technologies) has taken part of this project by designing and manufacturing the
cryogenic liquefier. This new cryogenic plant is connected through a cryogenic
distribution system to a 10 kL Dewar, which is part of the existing cryogenic
test facility, itself composed of another Cold Box and a Sullair compressor.
The new cryogenic plant has two main operating modes: one allows to transfer
liquid helium at 1.7 bar between the two Dewars, the other allows to transfer
supercritical Helium at 2 bar or more between the new Cold Box and the 10 kL
Dewar. The entire industrial cryogenic facility is handled by a common
Inventory Control System, composed of three control valves, and 9 tanks giving
a total buffer volume of more than 1000 m3. This paper presents the technical
features of the new Helium cryogenic plant, as well as the main results of the
liquefier commissioning phase and details of the helium transfer between the
two Dewars, making the connection between the cryogenic plants at the IB-1
Industrial Cryogenic Test Facility.
