Operational experience of SST1 NBI control system with prototype Ion source

Patel, Vinay; Patel, Paresh; Singh, Namita; Patel, G.; Onali, Raja; Tripathi, Vivek; Thakkar, D. P.; Gupta, L. N.; Prahlad, V.; Sharma, S.; Bandyopadyay, M; Chakraborty, A.K.; Baruah, U.; Mattoo, S. K.; Team, Nbi

doi:10.1088/1742-6596/208/1/012009

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…The overall hardware architecture of the data acquisition and processing application system for the RF ion source is schematically shown as figure 1 [7,8].…”

Section: Overall Hardware Architecturementioning

confidence: 99%

The development of data acquisition and processing application system for RF ion source

Zhang

Wang

et al. 2017

Plasma Sci. Technol.

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As the key ion source component of nuclear fusion auxiliary heating devices, the radio frequency (RF) ion source is developed and applied gradually to offer a source plasma with the advantages of ease of control and high reliability. In addition, it easily achieves long-pulse steady-state operation. During the process of the development and testing of the RF ion source, a lot of original experimental data will be generated. Therefore, it is necessary to develop a stable and reliable computer data acquisition and processing application system for realizing the functions of data acquisition, storage, access, and real-time monitoring. In this paper, the development of a data acquisition and processing application system for the RF ion source is presented. The hardware platform is based on the PXI system and the software is programmed on the LabVIEW development environment. The key technologies that are used for the implementation of this software programming mainly include the long-pulse data acquisition technology, multithreading processing technology, transmission control communication protocol, and the Lempel-Ziv-Oberhumer data compression algorithm. Now, this design has been tested and applied on the RF ion source. The test results show that it can work reliably and steadily. With the help of this design, the stable plasma discharge data of the RF ion source are collected, stored, accessed, and monitored in real-time. It is shown that it has a very practical application significance for the RF experiments.

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“…The overall hardware architecture of the data acquisition and processing application system for the RF ion source is schematically shown as figure 1 [7,8].…”

Section: Overall Hardware Architecturementioning

confidence: 99%

The development of data acquisition and processing application system for RF ion source

Zhang

Wang

et al. 2017

Plasma Sci. Technol.

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“…The data server offers the querying interfaces for these query terminals. For remote operation and communication between various devices on NBI local network, the connections are achieved via Gigabit Ethernet [7] .…”

Section: The Functional Structure Of Cdpsmentioning

confidence: 99%

The Implementation of Computer Data Processing Software for EAST NBI

Zhang¹,

Hu²,

Peng³

et al. 2014

Plasma Sci. Technol.

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One of the most important project missions of neutral beam injectors is the implementation of 100 s neutral beam injection (NBI) with high power energy to the plasma of the EAST superconducting tokamak. Correspondingly, it's necessary to construct a high-speed and reliable computer data processing system for processing experimental data, such as data acquisition, data compression and storage, data decompression and query, as well as data analysis. The implementation of computer data processing application software (CDPS) for EAST NBI is presented in this paper in terms of its functional structure and system realization. The set of software is programmed in C language and runs on Linux operating system based on TCP network protocol and multi-threading technology. The hardware mainly includes industrial control computer (IPC), data server, PXI DAQ cards and so on. Now this software has been applied to EAST NBI system, and experimental results show that the CDPS can serve EAST NBI very well.

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Characteristics of the positive ion source at reduced gas feed

Sharma

Bharathi

Prahlad

et al. 2014

Review of Scientific Instruments

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The neutral beam injector of steady state superconducting tokamak (SST1-NBI) at IPR is designed for injecting upto 1.7 MW of neutral beam (Hº, 30-55 keV) power to the tokamak plasma for heating and current drive. Operations of the positive ion source (PINI or Plug-In-Neutral-Injector) of SST1-NBI were carried out on the NBI test stand. The PINI was operated at reduced gas feed rate of 2-3 Torr l/s, without using the high speed cryo pumps. Experiments were conducted to achieve a stable beam extraction by optimizing operational parameters namely, the arc current (120-300 A), acceleration voltage (16-40 kV), and a suitable control sequence. The beam divergence, power density profiles, and species fractions (H(+):H2(+):H3(+)) were measured by using the diagnostics such as thermal calorimetry, infrared thermography, and Doppler shift spectroscopy. The maximum extracted beam current was about 18 A. A further increase of beam current was found to be limited by the amount of gas feed rate to the ion source.

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Operational experience of SST1 NBI control system with prototype Ion source

Cited by 3 publications

References 1 publication

The development of data acquisition and processing application system for RF ion source

The development of data acquisition and processing application system for RF ion source

The Implementation of Computer Data Processing Software for EAST NBI

Characteristics of the positive ion source at reduced gas feed

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