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48 results on '"Parra, Felix I."'

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1. Beam focusing and consequences for Doppler Backscattering measurements

2. Measurement of zero-frequency fluctuations generated by coupling between Alfv\'en modes in the JET tokamak

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3. Sheath constraints on turbulent magnetised plasmas

4. Neoclassical transport in strong gradient regions of large aspect ratio tokamaks

5. Effect of mismatch on Doppler backscattering in MAST and MAST-U plasmas

6. Validating and optimising mismatch tolerance of Doppler backscattering measurements with the beam model

7. Finite orbit width effects in large aspect ratio stellarators

8. Beam model of Doppler backscattering

9. Sheath collapse at critical shallow angle due to kinetic effects

10. Toroidal and slab ETG instability dominance in the linear spectrum of JET-ILW pedestals

11. Dependence on ion temperature of shallow-angle magnetic presheaths with adiabatic electrons

12. Impact of main ion pressure anisotropy on stellarator impurity transport

13. Intrinsic rotation driven by turbulent acceleration

14. Solution to a collisionless shallow-angle magnetic presheath with kinetic ions

15. Electrostatic potential variations on stellarator magnetic surfaces in low collisionality regimes

16. Stellarator impurity flux driven by electric fields tangent to magnetic surfaces

17. Electromagnetic zonal flow residual responses

18. Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks

19. Semianalytical calculation of the zonal-flow oscillation frequency in stellarators

20. Turbulent momentum transport due to the beating between different tokamak flux surface shaping effects

21. The effect of tangential drifts on neoclassical transport in stellarators close to omnigeneity

22. Gyrokinetic treatment of a grazing angle magnetic field

23. Effect of the Shafranov shift and the gradient of $\beta$ on intrinsic momentum transport in up-down asymmetric tokamaks

24. Scaling of up-down asymmetric turbulent momentum flux with poloidal shaping mode number in tokamaks

25. Poloidal tilting symmetry of high order tokamak flux surface shaping in gyrokinetics

26. Turbulent momentum transport due to neoclassical flows

27. Radial transport of toroidal angular momentum in tokamaks

28. Less constrained omnigeneous stellarators

29. Equivalence of two different approaches to global $\delta f$ gyrokinetic simulations

30. Radial penetration of flux surface shaping in tokamaks

31. Intrinsic rotation in tokamaks: theory

32. Flow damping in stellarators close to quasisymmetry

33. Optimizing stellarators for large flows

34. When omnigeneity fails

35. Intrinsic momentum transport in up-down asymmetric tokamaks

36. Radially global $\delta f$ computation of neoclassical phenomena in a tokamak pedestal

37. Extension of gyrokinetics to transport time scales

38. A current driven electromagnetic mode in sheared and toroidal configurations

39. Conditions for up-down asymmetry in the core of tokamak equilibria

40. Stellarators close to quasisymmetry

41. Turbulent momentum pinch of diamagnetic flows in a tokamak

42. Analytic fluid theory of beam spiraling in high-intensity cyclotrons

43. Perpendicular momentum injection by lower hybrid wave in a tokamak

44. Long-wavelength limit of gyrokinetics in a turbulent tokamak and its intrinsic ambipolarity

45. Intrinsic rotation with gyrokinetic models

46. Sources of intrinsic rotation in the low flow ordering

47. Up-down symmetry of the turbulent transport of toroidal angular momentum in tokamaks

48. Phase-space Lagrangian derivation of electrostatic gyrokinetics in general geometry