Indigenously developed data acquisition system for plasma diagnostics in Aditya-U Tokamak

Aditya Upgrade Tokamak has provided opportunity to implement indigenously developed 64 channel data acquisition system. The system is portable, compact and does not need any external PC for processing. This data acquisition system is more economic and similar in features to PXI based DAS. It is connected to control server through Ethernet. Since the system is stand alone in itself, it is placed in same rack with signal conditioning system of plasma diagnostic. This arrangement reduces the long cables which earlier used to be 20 meters between DAQ unit and signal conditioning system to 1 meter. This setup improved signal to noise ratio and reduced ground loop problems. We have implemented such 5 system among different diagnostic like Soft-Xray, Bolometer, ECE radiometer, EM diagnostic and Spectroscopy. The five units of 64 channel DAQ are functioning successfully since Aditya upgrade phase-I. The inherent features of the board are 16 bit resolution, programmable pretrigger sample and sampling rate up to 200 kS/s/ch and simultaneous acquisition. The acquisition application is developed in Labview and Linux platform, in SBC. In poster details of system integration, hardware and software architecture and results will be discussed. (author)