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A superconducting detector magnet and two sets of interaction region (IR) magnets are adopted in the upgrade project of Beijing Electron and Positron Collider (BEPC II). The operating currents of these magnets differ from 3.6kA to 24A. Totally 13 pairs of vapor cooled current leads (VCCL) were designed and fabricated for these magnets. After the successful test experiments, all the VCCL have been...
This paper is concerned about the expansion of a small amount of liquid nitrogen injected into a relatively large pool of water and the heat transfer behaviour during the process. Both the transient pressure and temperature profiles are experimentally measured and analysed. The results show that the pressure and the rate of pressure rise increase approximately linearly with increasing injection pressure...
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