http://www.ans.org/pubs/journals/fst/a_30447

Dautovich, D.P.; Miller, J. M.

doi:10.13182/fst28-439

Cited by 1 publication

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to equation (8) of our paper, enhanced absorption of RF power by 7 Li ions is possible in D : T∼45% : 55% plasmas, which is close to the optimal D : T mixture. In contrast, 6 Li ions have the same Z/A ratio as D ions and therefore the three-ion acceleration scheme is not applicable in the presence of this isotope.…”

Section: Experimental Evidence: ( 7 Li)-d-t Heatingsupporting

confidence: 53%

“…In contrast, 6 Li ions have the same Z/A ratio as D ions and therefore the three-ion acceleration scheme is not applicable in the presence of this isotope. Although the enhanced E + is still present close to the L-cutoff in such D-T plasmas, 6 Li ions are not able to profit from that, contrary to the 7 Li isotope. Wilson et al [26] noted that the application of D-T MC heating or current drive to future devices could be hampered by the presence of Be ions.…”

Section: Experimental Evidence: ( 7 Li)-d-t Heatingmentioning

confidence: 94%

“…The content of lithium impurity in the plasma was estimated to be 0.5-0.7% and the computations predicted that it was absorbing ∼75% of the RF power. Successful MC heating in D-T plasmas in TFTR was found after 7 Li ions were replaced in the plasma by 6 Li ions.…”

Section: Experimental Evidence: ( 7 Li)-d-t Heatingmentioning

confidence: 99%

“…Throughout the paper, indices '1' and '2' refer to majority and minority ions, respectively. For low minority concentrations, the FW polarization can be expressed by [1,7]…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

On resonant ICRF absorption in three-ion component plasmas: a new promising tool for fast ion generation

Kazakov¹,

Eester²,

Dümont

et al. 2015

Nucl. Fusion

View full text Add to dashboard Cite

We report on a very efficient ion-cyclotron-resonance-frequency (ICRF) absorption scheme (Z)–Y–X, which hinges on the presence of three ion species residing in the plasma. A mode conversion (cutoff-resonance) layer is well known to appear in two-ion species plasmas. If the location of the L-cutoff in Y–X plasmas, which can be controlled by varying the Y : X density ratio, almost coincides with the fundamental cyclotron resonance of the third ion species Z (resonant absorber), the latter—albeit present only in trace quantities—is shown to absorb almost all the incoming RF power. A quantitative criterion for the resonant Y : X plasma composition is derived and a few numerical examples are given. Since the absorbed power per resonant particle is much larger than for any other ICRF scheme, the here discussed scenarios are particularly promising for fast particle generation. Their possible application as a source of high-energy ions for the stellarator W7-X and to mimic alpha particles during the non-activated phase of ITER tokamak is briefly discussed.

show abstract

Section: Experimental Evidence: ( 7 Li)-d-t Heatingsupporting

confidence: 53%

Section: Experimental Evidence: ( 7 Li)-d-t Heatingmentioning

confidence: 94%

Section: Experimental Evidence: ( 7 Li)-d-t Heatingmentioning

confidence: 99%

“…Throughout the paper, indices '1' and '2' refer to majority and minority ions, respectively. For low minority concentrations, the FW polarization can be expressed by [1,7]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations