physics/0111033 UPGRADE OF THE CONTROL SYSTEM OF THE IFUNAM´S PELLETRON ACCELERATOR

In 1995 a 9SDH-2 Pelletron from NEC was installed at IFUNAM (Instituto de Física, Universidad Nacional Autónoma de México). Two beam lines have been operational since then and two new lines have been built. In order to implement planned projects in this mature facility, an upgrading of the original manual control system is required. The proposed new control system takes advantage of the existing devices and incorporates the electronics needed for the newer beam lines. The control software from NEC, has been modified to accommodate the larger requirements. It runs on the same dedicated computer but receives commands from a new installed host. Both computers communicate through a local network sharing the accelerator database. The new host computer also handles all parameters related to the new lines. In the future, the old computer will be replaced in order to expand the possibilities of the system and use a friendlier graphical interface. In this work we present the changes made to the control software, the new acquisition and control devices installed and the integration of the old and new systems. Finally, the beam control procedure based on the analysis of the beam profile that is under development is also shown