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. 2017 May 18;24(5):055503. doi: 10.1063/1.4983629

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© 2017 Author(s).

1070-664X/2017/24(5)/055503/10

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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FIG. 6. — The nominally identical ECR heating programming (top) and the evolving bootstrap currents (bottom) for three different configurations, the standard OP1.1 configuration (blue) 20160309.010, the alternative OP1.1 configuration (black, 20160309.029), and an in-between configuration (red, 20160309.018). A clear tendency for lower bootstrap current in the alternative configuration is seen.