Alfven eigenmodes and fast ion transport in negative triangularity DIII-D plasmas
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'The first energetic particle experiments in negative triangularity tokamak plasmas have been  carried out on DIII-D. Alfvén eigenmode (AE) activity and associated fast ion transport  comparable to that in positive triangularity is observed during the current ramp portion of all  plasmas with early beam heating indicating negative triangularity does not confer a special  advantage with respect to AE induced transport. In these discharges, a range of mode activity  driven by the sub-Alfvénic (Vbeam/VA < 0.5) 80 kV neutral beams is found including beta  induced Alfvén acoustic eigenmodes, beta induced Alfvén eigenmodes, reversed shear Alfvén  eigenmodes (RSAEs) and toroidicity induced Alfvén eigenmodes (TAEs). Mode intermittency  and possibly chirping appears to be more common than comparable positive triangularity  and/or oval discharges ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Alfven waves","fusion products","magnetohydrodynamic waves","MHD stability","plasma heating by particle beams","tokamaks"]} <|eot_id|>
 Here is the Description of a dataset. Description:'The first energetic particle experiments in negative triangularity tokamak plasmas have been  carried out on DIII-D. Alfvén eigenmode (AE) activity and associated fast ion transport  comparable to that in positive triangularity is observed during the current ramp portion of all  plasmas with early beam heating indicating negative triangularity does not confer a special  advantage with respect to AE induced transport. In these discharges, a range of mode activity  driven by the sub-Alfvénic (Vbeam/VA < 0.5) 80 kV neutral beams is found including beta  induced Alfvén acoustic eigenmodes, beta induced Alfvén eigenmodes, reversed shear Alfvén  eigenmodes (RSAEs) and toroidicity induced Alfvén eigenmodes (TAEs). Mode intermittency  and possibly chirping appears to be more common than comparable positive triangularity  and/or oval discharges ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
The first energetic particle experiments in negative triangularity tokamak plasmas have been  carried out on DIII-D. Alfvén eigenmode (AE) activity and associated fast ion transport  comparable to that in positive triangularity is observed during the current ramp portion of all  plasmas with early beam heating indicating negative triangularity does not confer a special  advantage with respect to AE induced transport. In these discharges, a range of mode activity  driven by the sub-Alfvénic (Vbeam/VA < 0.5) 80 kV neutral beams is found including beta  induced Alfvén acoustic eigenmodes, beta induced Alfvén eigenmodes, reversed shear Alfvén  eigenmodes (RSAEs) and toroidicity induced Alfvén eigenmodes (TAEs). Mode intermittency  and possibly chirping appears to be more common than comparable positive triangularity  and/or oval discharges 
Alfven waves; fusion products; magnetohydrodynamic waves; MHD stability; plasma heating by particle beams; tokamaks