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Description
Single-turn coil (STC) is a destructive pulsed magnet aiming at high magnetic field beyond 100 T. To increase the peak magnetic field, delay the destruction of conductor, and avoid the damage of samples, it is important to select the thickness of STC appropriately. If the conductor is too thin, the temperature rise and deformation of the coil during discharge can be so drastic that the coil can be destroyed before the peak magnetic field is generated. However, if the conductor is too thick, the inhibition of conductor radial expansion by the thickness is too strong, which can cause the metal vapor from the vaporized inner surface of the coil to expand inward, and cause premature damage to the experimental samples or magnetic field measurement probes. In this study, the characteristics of conductor destruction at small thickness and samples damage at large thickness, respectively, are investigated. In addition, the theoretical support for the optimal experimental thickness is provided.
