On the 16 MV XTU tandem of the laboratori nazionali di legnaro

Abstract

A report on the present status of the XTU tandem installation in Legnaro (Padova) is presented. The building and the technical and electric plants are almost completed. The 150 kV injector has been preliminary tested with a sputter source for ¹²C, ³²S, and ⁶³Cu negative ions. The SF₆ gas handling system (gaseous phase storing) has been completely installed and tested. The laddertron charging system was able to deliver 400 uA per chain (up charge + down charge) according to the specifications. The column structure has been successfully tested up to 20 MV, as guaranteed, with +7.3 bar pure SF₆ and −55°C dew point. The accelerator tubes have therefore been installed and will be tested in November 1980. The beam transport provided by standard HVEC high energy extension, a 90° analyzing magnet (B_ϱ = 3.1 T m) and a switching magnet with seven left- and seven right- side exit ports has also been completed. The instrumentation connected with the beam lines will already be equipped with a pulsing system (1 ns) and with different experimental devices for heavy ion detection, γ, and neutron spectroscopy, and mass spectrometry facilities.