Speaker
Description
The proposed theme of this research focuses on studying, developing and nationalizing an automated system scanning the Dynamtron ® DC1500/25/4 electron beam accelerator with energy of 1.5 MeV , beam current of 25 mA and beam scanning of 60 to 120 cm , with a total power of 150 kW, installed at Ipen-CNEN /SP in 1978 and since then used in radiosterilization, disinfestation , treatment of industrial and domestic effluents, modification and cross-linking of polymeric materials, curing of composite materials among other applications . The scanning system of the electron beam accelerator aims to control the length of the electron beam from 60 to 120 cm with a thickness of 25.4 mm, in which the magnet and electronic coils are controlled for scanning control. This entire system is in the original configuration of the accelerator manufacturer, RDI Radiation Dynamics, Inc , installed at IPEN in 1978, however, since 1987, it no longer provides spare parts for this type of accelerator. Next, a new control system was developed, where the scanning system with control signal is composed of a Siemens S7-1200 programmable logic controller , an arbitrary function generator and other components. This updated system allowed greater agility in routine operations, continuing the work using this electron accelerator, which serves research improvements in different areas such as human tissues, precious stones, new composites and polymers, food and medical products and health, in addition to demands services for external companies.
