Gatu Johnson M, Andersson Sundén E, Cecconello M, Conroy S, Ericsson G, Eriksson J, Gorini G, Hellesen C, Kiptily V, Nocente M, Sangaroon S, Sharapov S E, Tardocchi M, van Eester D, Weiszflog M
JET-EFDA, Culham Science Centre, OX14 3DB, Abingdon, United Kingdom.
Rev Sci Instrum. 2010 Oct;81(10):10D336. doi: 10.1063/1.3502316.
Recent experiments at JET aimed at producing 4He ions in the MeV range through third harmonic ion cyclotron resonance heating (ICRH) acceleration of 4He beams in a 4He dominated plasma. MeV range D was also present through parasitic ICRH absorption on residual D. In this contribution, we analyze TOFOR neutron spectrometer data from these experiments. A consistent description of the data is obtained with d(d,n)3He and 9Be(α,n)12C neutron components calculated using Stix distributions for the fast D and 4He, taking finite Larmor radius effects into account and with a ICRH power partition of P(D)(RF) = 0.01×P(4He)(RF), in agreement with TOMCAT simulations.
