Abstract
A multishot in situ pellet injection system has been constructed in the Institute of Plasma Physics. Single- and multi-pellet injection experiments were performed on the HT-6M and superconducting HT-7 tokamaks. The system proved to be convenient and reliable to operate. Pellets were fired into ohmically and LHCD and ICRF heated plasmas. Single pellet injection in ohmic discharge was found to increase the central density of HT-7 by about one half, while two pellet injection increased the central density in a step-like fashion by one half with each shot. Peaking of the electron density profile and a hollow electron temperature profile were obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 1871-1874 |
| Number of pages | 4 |
| Journal | Nuclear Fusion |
| Volume | 39 |
| Issue number | Special Issu |
| DOIs | |
| State | Published - 1999 |
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