Superconducting bending magnets for compact synchrotron radiation source
A 180 degrees superconducting magnet has been constructed for a synchrotron radiation source. The authors describe the superconducting magnet design and some component test results for the compact synchrotron radiation source. The magnetic field at the electron orbit is 4.5 T. The bending radius is 0.593 m. The magnet has several features such as low liquid helium consumption ratio, persistent current operation, high homogeneous magnetic fields, and leakage flux shielding by the iron core surrounding the cryostat. Component tests of persistent current switches of 15 Omega and 3 Omega and a superconducting joint test have been performed.<<ETX>>
A superconducting magnet for a compact synchrotron radiation ring
A 180 degree superconducting bending magnet for a synchrotron radiation source has been designed and constructed based on 3-dimensional electromagnetic analysis. The magnet is covered by iron shield to prevent the leakage of magnetic fields. The liquid helium consumption of the equipment is very small in the persistent current mode. The measurement results are in good agreement with the analysed ones. This magnet is under operation as a synchrotron radiation source at a beam energy of 600MeV. The radiation can be used for several applications, such as, X-ray lithography in semiconductor industries.
Can Centauros or Chirons BE the First Observations of Evaporating Mini Black Holes
We argue that the signals expected from the evaporation of mini black holes — predicted in TeV-gravity models with large extra dimensions, and possibly produced in ultrahigh energy collisions in the atmosphere — are quite similar to the characteristics of the Centauro events, an old mystery of cosmic-ray physics.