The neutron emission from (3He)D plasmas with RF heating is calculated using a model that includes supra-thermal (knock-on) components of the deuteron population. The RF generation of fast 3He ions is described and the knock-on components were determined with the help of newly derived 3He + d scattering cross sections. Results are presented on the neutron emission spectrum and its contributions from different deuteron velocity components. It is shown that knock-on leaves an observable feature in the spectrum with a clear dependence on absorbed RF power. The importance of the nuclear interaction in the elastic cross section is demonstrated. The results represent a step forward in the use of neutron emission spectroscopy to diagnose fusion plasmas with minority supra-thermal components in their fuel ion composition. © 2011 IAEA, Vienna.

Nocente, M., Gorini, G., Källne, J., & Tardocchi, M. (2011). Calculated neutron emission spectrum with knock-on effects for RF heated (3He)D plasmas. NUCLEAR FUSION, 51(6) [10.1088/0029-5515/51/6/063011].

Calculated neutron emission spectrum with knock-on effects for RF heated (3He)D plasmas

NOCENTE, MASSIMO
;
GORINI, GIUSEPPE;
2011

Abstract

The neutron emission from (3He)D plasmas with RF heating is calculated using a model that includes supra-thermal (knock-on) components of the deuteron population. The RF generation of fast 3He ions is described and the knock-on components were determined with the help of newly derived 3He + d scattering cross sections. Results are presented on the neutron emission spectrum and its contributions from different deuteron velocity components. It is shown that knock-on leaves an observable feature in the spectrum with a clear dependence on absorbed RF power. The importance of the nuclear interaction in the elastic cross section is demonstrated. The results represent a step forward in the use of neutron emission spectroscopy to diagnose fusion plasmas with minority supra-thermal components in their fuel ion composition. © 2011 IAEA, Vienna.
Articolo in rivista - Articolo scientifico
Scientifica
neutron emission; D plasmas
English
Nocente, M., Gorini, G., Källne, J., & Tardocchi, M. (2011). Calculated neutron emission spectrum with knock-on effects for RF heated (3He)D plasmas. NUCLEAR FUSION, 51(6) [10.1088/0029-5515/51/6/063011].
Nocente, M; Gorini, G; Källne, J; Tardocchi, M
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/28280
Citazioni
  • Scopus 44
  • ???jsp.display-item.citation.isi??? 44
Social impact