Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6744904 | Fusion Engineering and Design | 2016 | 4 Pages |
Abstract
Injection of solid hydrogen pellets is an efficient way of replenishing the spent fuel in high temperature plasmas. Aiming that, a Single Pellet INjector System (SPINS) is developed at Institute for Plasma Research (IPR), India, to initiate pellet injection related research in SST-1. The pellet injector is controlled by a PXI system based data acquisition and control (DAC) system for pellet formation, precise firing control, data collection and diagnostics. The velocity of high speed moving pellets is estimated by using two sets of light gate diagnostic. Apart from light gate, a fast framing camera is used to measure the pellet size and its speed. The pellet images are captured at a frame rate of â¼200,000 frames per second at (128 Ã 64) pixel resolution with an exposure time of 1 μs. Using these diagnostic, various cylindrical pellets of length ranging from 2 to 4.8 mm and speed 250-750 m/s were successfully obtained. This paper describes the control and data acquisition system of SPINS, the techniques for measurement of pellet velocity and capturing images of high speed moving pellet.
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Authors
Samiran Shanti Mukherjee, Jyotishankar Mishra, Ranjana Gangradey, Pramit Dutta, Naveen Rastogi, Paresh Panchal, Pratik Nayak, Jyoti Agarwal, Pawan Bairagi, Haresh Patel, Hardik Sharma,