@inproceedings{e2c0a67817664df78a05cd5e7e31e9cf,
title = "Non-solenoidal startup as a path to high normalized current operations in the PEGASUS Toroidal Experiment",
abstract = "The PEGASUS Toroidal Experiment is an ultra-low aspect ratio spherical tokamak (R=0.45m, a=0.40m) exploring non-solenoidal startup and the physics of the high-IN high-βT operating regime. Achieving high IN in PEGASUS requires a non-solenoidal method of driving plasma current and controlling the current density profile. PEGASUS uses compact highcurrent plasma guns as DC magnetic helicity injectors for non-solenoidal startup, and helicity injection discharges can be coupled to inductive drive for further Ip rampup and sustainment. To date, helicity injection alone has produced Ip=0.17 MA, while gun-Ohmic coupling has produced 0.135 MA of handoff current and peak Ip=0.22 MA. Further optimization will enable production of high-density, high-IN target plasmas for high-βT studies.",
author = "Redd, {A. J.} and Bongard, {M. W.} and Fonck, {R. J.} and Hinson, {E. T.} and Schlossberg, {D. J.}",
year = "2010",
language = "English",
isbn = "9781622763313",
series = "37th EPS Conference on Plasma Physics 2010, EPS 2010",
pages = "1414--1417",
booktitle = "37th EPS Conference on Plasma Physics 2010, EPS 2010",
note = "37th EPS Conference on Plasma Physics 2010, EPS 2010 ; Conference date: 21-06-2010 Through 25-06-2010",
}
