GPIB based instrumentation and control system for ADITYA Thomson Scattering Diagnostic

The ADITYA Thomson Scattering Diagnostic is a single point Ruby laser based system with a spectrometer for spectral dispersion and photomultiplier tubes for the detection of scattered light. The system uses CAMAC (Computer Automated Measurement And Control) based control and data acquisition system,...

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Bibliographic Details
Published in:Fusion engineering and design 2016-11, Vol.112, p.860-864
Main Authors: Patel, Kiran, Pillai, Vishal, Singh, Neha, Chaudhary, Vishnu, Thomas, Jinto, Kumar, Ajai
Format: Article
Language:English
Subjects:
Analog to digital converters
Automatic control
Burning time
CAMAC
Control equipment
Control systems
Data acquisition (DAQ)
Data acquisition systems
Data buses
Data transfer (computers)
Data transmission
Diagnostic systems
Digitization
GPIB
Graphical user interface
LabVIEW
Laser applications
Photomultiplier tubes
Protocol (computers)
Ruby lasers
Scattering
Thomson Scattering
Tokamak devices
Upgrading
User interfaces
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Summary:The ADITYA Thomson Scattering Diagnostic is a single point Ruby laser based system with a spectrometer for spectral dispersion and photomultiplier tubes for the detection of scattered light. The system uses CAMAC (Computer Automated Measurement And Control) based control and data acquisition system, which synchronizes the Ruby laser, detectors and the digitizer. Previously used serial based CAMAC controller is upgraded to GPIB (General Purpose Interface Bus) based CAMAC controller for configuration and data transfer. The communication protocols for different instruments are converted to a single GPIB based for better interface. The entire control and data acquisition program is developed on LabVIEW platform for versatile operation of diagnostics with improved user friendly GUI (Graphical User Interfaces) and allows user to remotely update the laser firing time with respect to the plasma shot. The software is in handshake with the Tokamak main control program through network to minimize manual interventions for the operation of the diagnostics. The upgraded system improved the performance of the diagnostics in comparison to earlier in terms of better data transmission rate, easy to maintain and program is upgradable.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2016.06.021