Matches in SemOpenAlex for { <https://semopenalex.org/work/W2492924462> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2492924462 abstract "Given the observed enhancement of energy and particle confinement, and the possibility of achieving high betas and high bootstrap current fractions, reversed magnetic shear equilibria have become the leading concept in advanced tokamak scenarios. The performance limits for these configurations are most likely to be set by MHD stability constraints. The other essential issue for this advanced tokamak concept is the non-inductive, steady state sustainment of the current profile. These two topics are covered in the present work. We concentrate on equilibria with minimum value of q greater than 2 so as to avoid double-tearing mode problems and to have global access to the n={infinity} ballooning second stability region. Then the MHD limit is set by the n=1 (pressure-current driven) external mode. The critical parameters for the onset of the n=1 instability in terms of the plasma beta and current are obtained for several classes of equilibria, allowing for a systematic study of geometrical shaping and profile effects. It is shown that triangular shapes and broad profiles yield optimal results. The realistic sustainment of the reversed shear current profiles is investigated by generating equilibria with the ACCOME code. This simulation model combines a free boundary solution of the Grad-Shafranov equationmore » with the calculation of driven currents due to neutral beam injection, lower hybrid waves, ICRF fast waves and bootstrap effects. Such equilibrium code is coupled to the JSOLVER and PEST-II codes in order to perform the stability analysis. Specific simulations for the ALCATOR C-mod and ITER tokamaks are provided. Optimal parameters for completely stable equilibria without conducting walls thus obtained reach {beta}{sub N}=3.7, {beta}=3.7%, {beta}*=5.0% and bootstrap fraction in excess of 75%.« less" @default.
- W2492924462 created "2016-08-23" @default.
- W2492924462 creator A5007175470 @default.
- W2492924462 creator A5075170683 @default.
- W2492924462 creator A5083494987 @default.
- W2492924462 date "1996-12-31" @default.
- W2492924462 modified "2023-10-16" @default.
- W2492924462 title "MHD and current profile control studies of reversed shear tokamak configurations" @default.
- W2492924462 hasPublicationYear "1996" @default.
- W2492924462 type Work @default.
- W2492924462 sameAs 2492924462 @default.
- W2492924462 citedByCount "0" @default.
- W2492924462 crossrefType "journal-article" @default.
- W2492924462 hasAuthorship W2492924462A5007175470 @default.
- W2492924462 hasAuthorship W2492924462A5075170683 @default.
- W2492924462 hasAuthorship W2492924462A5083494987 @default.
- W2492924462 hasConcept C116515362 @default.
- W2492924462 hasConcept C121332964 @default.
- W2492924462 hasConcept C148043351 @default.
- W2492924462 hasConcept C159985019 @default.
- W2492924462 hasConcept C185544564 @default.
- W2492924462 hasConcept C192562407 @default.
- W2492924462 hasConcept C207821765 @default.
- W2492924462 hasConcept C2776097996 @default.
- W2492924462 hasConcept C2779766045 @default.
- W2492924462 hasConcept C30475298 @default.
- W2492924462 hasConcept C31532427 @default.
- W2492924462 hasConcept C50488108 @default.
- W2492924462 hasConcept C57879066 @default.
- W2492924462 hasConcept C82706917 @default.
- W2492924462 hasConcept C96035792 @default.
- W2492924462 hasConcept C97355855 @default.
- W2492924462 hasConceptScore W2492924462C116515362 @default.
- W2492924462 hasConceptScore W2492924462C121332964 @default.
- W2492924462 hasConceptScore W2492924462C148043351 @default.
- W2492924462 hasConceptScore W2492924462C159985019 @default.
- W2492924462 hasConceptScore W2492924462C185544564 @default.
- W2492924462 hasConceptScore W2492924462C192562407 @default.
- W2492924462 hasConceptScore W2492924462C207821765 @default.
- W2492924462 hasConceptScore W2492924462C2776097996 @default.
- W2492924462 hasConceptScore W2492924462C2779766045 @default.
- W2492924462 hasConceptScore W2492924462C30475298 @default.
- W2492924462 hasConceptScore W2492924462C31532427 @default.
- W2492924462 hasConceptScore W2492924462C50488108 @default.
- W2492924462 hasConceptScore W2492924462C57879066 @default.
- W2492924462 hasConceptScore W2492924462C82706917 @default.
- W2492924462 hasConceptScore W2492924462C96035792 @default.
- W2492924462 hasConceptScore W2492924462C97355855 @default.
- W2492924462 hasLocation W24929244621 @default.
- W2492924462 hasOpenAccess W2492924462 @default.
- W2492924462 hasPrimaryLocation W24929244621 @default.
- W2492924462 hasRelatedWork W1520802659 @default.
- W2492924462 hasRelatedWork W1540328408 @default.
- W2492924462 hasRelatedWork W1614240236 @default.
- W2492924462 hasRelatedWork W1642336337 @default.
- W2492924462 hasRelatedWork W2007671372 @default.
- W2492924462 hasRelatedWork W2027468124 @default.
- W2492924462 hasRelatedWork W2031329857 @default.
- W2492924462 hasRelatedWork W2042528401 @default.
- W2492924462 hasRelatedWork W2044484890 @default.
- W2492924462 hasRelatedWork W2048802331 @default.
- W2492924462 hasRelatedWork W2049978187 @default.
- W2492924462 hasRelatedWork W2331715684 @default.
- W2492924462 hasRelatedWork W2600459585 @default.
- W2492924462 hasRelatedWork W2952591087 @default.
- W2492924462 hasRelatedWork W3116053956 @default.
- W2492924462 hasRelatedWork W316178246 @default.
- W2492924462 hasRelatedWork W32148705 @default.
- W2492924462 hasRelatedWork W646220689 @default.
- W2492924462 hasRelatedWork W744262246 @default.
- W2492924462 hasRelatedWork W1652094375 @default.
- W2492924462 isParatext "false" @default.
- W2492924462 isRetracted "false" @default.
- W2492924462 magId "2492924462" @default.
- W2492924462 workType "article" @default.