Design and performance analysis of cryostat for superconducting magnet measurement
Based on the evaluation requirements for cryogenic performance of the fast-ramped superconducting dipole mag-net,a key component of the"National Key R&D Program—Collaborative Development of Key Components for the Next-Genera-tion Heavy-Ion Accelerator"project,a cryostat with forced-flow cooling capability was designed and developed.It consisted of a feedbox,a test dewar and cooling pipelines.The design was optimized by analyzing and redistributing eddy currents on the ther-mal shield and implementing POST support structures,which significantly reduced thermal loads and alleviated thermal stress in-duced by temperature gradients.Computational analysis indicates that the total heat leakage of the system is approximately 17 W within the operational temperature range of 77 K to 4.5 K,thereby meeting the stringent requirements for cryogenic testing.This research can provide a robust framework for the performance assessment of fast-ramped superconducting magnets under cryogenic conditions and serve as a reference for advancing cryostat optimization in future applications.
Fast pulsed superconducting magnetCryogenic testPOST supportHeat leakage
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