Abstract. The large range of plasma currents (I_p = 0.2–1.6 MA) and feedback-controlled magnetic boundary conditions of the RFX-mod experiment make it well suited to performing scaling studies. The assessment of such scaling, in particular those on temperature and energy confinement, is crucial both for improving the operating reversed-field pinch (RFP) devices and for validating the RFP configuration as a candidate for the future fusion reactors. For such a purpose scaling laws for magnetic fluctuations, temperature and energy confinement have been evaluated in stationary operation. RFX-mod scaling laws have been compared with those obtained from other RFP devices and numerical simulations. The role of the magnetic boundary has been analysed, comparing discharges performed with different active control schemes of the edge radial magnetic field.

PACS numbers: 52.55.−s, 52.55.Lf, 52.25.Gj, 55.25.Fi

Print publication: Issue 11 (November 2009)
Received 14 May 2009, accepted for publication 4 September 2009
Published 30 September 2009