PPPL-3561 is available in <a href="PPPL-3561.pdf">pdf</a> or 
<a href="PPPL-3561.ps">postscript</a> formats.

<p>
<b>Initial Results from Coaxial Helicity Injection Experiments in NSTX</b>
</p>

<p>
<b>Authors:</b> R. Raman, T.R. Jarboe, D. Mueller, M.J. Schaffer, R. Maqueda, B.A. Nelson, S. Sabbagh, M. Bell, R. Ewig, E. Fredrickson, D. Gates, J. Hosea, H. Ji, R. Kaita, S.M. Kaye, H. Kugel, R. Maingi, J. Menard, M. Ono, D. Orvi, F. Paoletti, S. Paul, M. Peng, C.H. Skinner, J.B. Wilgen, S. Zweben, and the NSTX Research Team

</p>

<p>
<b>Date of PPPL Report:</b> May 2001
</p>

<p>
<b>Submitted to:</b> Plasma Physics and Controlled Fusion</p>
 
<p>

Coaxial Helicity Injection (CHI) has been investigated on the National Spherical Torus Experiment (NSTX). Initial experiments produced 130 kA of toroidal current without the use of the central solenoid. The corresponding injector current was 20 kA. Discharges with pulse lengths up to 130 ms have been produced.


</p>