Model Magnet for the Proposed Superconducting Cyclotron at the University of Milan
A project for a superconducting cyclotron for heavy ions has been under study for a couple of years at the Cyclotron Laboratory of the University of Milan. The machine is conceived as a booster for a 16 MV Tandem to be installed at the Laboratories of Legnaro (Padua) of the Italian National Institute for Nuclear Physics (INFN). The K design value is approximately 540, thus allowing maximum energies between approximately 55 MeV/nucleon and approximately 14 MeV/nucleon for light and heavy ions respectively. Pole diameter is 1.8 m and maximum average field should be around 41 Kgauss, to be obtained by a total of 6.5 x 10/sup 6/ Aturns in the superconducting coils. At present a three spiral sector polar configuration is envisaged, with a 7 cm hill gap and 70 cm valley gap. Three dees, in the valleys, should provide a peak accelerating voltage of 100 kV, allowing a 3rd or 9th harmonic operation. While funding for the machine is still under discussion, a program centered upon the construction of a superconducting model magnet and a full scale rf model was started in 1976. The design features of the model magnet, whose construction is now completed, are reported.
Model Studies for the Superconducting Cyclotron Project in Milan
of the project was completed in June 1976. In the meantime it was also decided that,pending approval and funding of the project, a model construction program would be helpful for i) getting the group acquainted with the problems connected with such a sophisticated machine, especially cryogenics and superconducting coil technology, ii) checking the theoretical calculations used for assessing magnetic fields and R.F. properties, and iii) ultimately reducing the time needed to build the machine in the near future.
Development and test of a liquid-argon shower detector
Abstract We have designed and constructed a liquid-argon shower detector, consisting of 30 sequential ionization chambers with interleaved converters. We have introduced a simple scheme to keep capacities low. The test of this detector in a 1.3 GeV/ cπ − beam was satisfactory.