Experience with a Process Control System for Large Scale Cryogenic Systems

The HERA proton storage ring will contain 422 superconducting dipole magnets and 224 superconducting quadrupole magnets. Each of these superconducting magnets will be connected at the Magnet Measurement Facility and individually tested before being installed in the 6-km ring tunnel. This paper discusses the cryogenic experience at the Measurement Facility during the various phases of the magnet tests. The computer-automated cool-down procedure used for thermal cycling of the magnets is described. The behavior of the cryogenic system for dipole and quadrupole magnets during quench and quench recovery is discussed. The results of cryogenic tests performed on the first superconducting magnets for HERA are summarized.

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Status of the superconducting cavity program for HERA

Dwersteg

Enderlein

Korber

et al.

Conference Record of the 1991 IEEE Particle Accelerator Conference

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Superconducting 500 MHz cavities have been developed at DESY for the purpose of increasing the e beam energy of the HERA storage ring. A complete prototype model has been built by industry and was tested successfully under laboratory and storage ring conditions. Meanwhile 16 superconducting 4-cell cavities, 8 cryostats and the LHe distribution system are under industrial production and will be installed in the HERA tunnel until summer 1990. We report in detail about RF and cryogenic measurements and discuss recent improvements of individual components.

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Experience with a Process Control System for Large Scale Cryogenic Systems

Cited by 3 publications

References 2 publications

Report on Operational Experience and Reliabllity of the HERA Cryogenic System

Report on Operational Experience and Reliabllity of the HERA Cryogenic System

Cryogenic Testing of Hera Superconducting Magnets

Status of the superconducting cavity program for HERA

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