AI Article Synopsis
- The study measures electron density profiles in spherical torus plasmas using a hydrogen line intensity ratio method, facilitating enhanced data collection.
- A specialized fast-frame visible camera captures Balmer line intensities at a rate of 1000 frames per second with a spatial resolution of about 0.5 cm, allowing simultaneous imaging of H and H radiation.
- Initial results show the obtained electron density profile aligns reasonably well with measurements from a triple Langmuir probe, indicating the reliability of the technique.
Article Abstract
Electron density profiles of versatile experiment spherical torus plasmas are measured by using a hydrogen line intensity ratio method. A fast-frame visible camera with appropriate bandpass filters is used to detect images of Balmer line intensities. The unique optical system makes it possible to take images of H and H radiation simultaneously, with only one camera. The frame rate is 1000 fps and the spatial resolution of the system is about 0.5 cm. One-dimensional local emissivity profiles have been obtained from the toroidal line of sight with viewing dumps. An initial result for the electron density profile is presented and is in reasonable agreement with values measured by a triple Langmuir probe.
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| http://dx.doi.org/10.1063/1.4960535 | DOI Listing |
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