View source for TJ-II:Influence of electron / ion root and ion mass on the radial and frequency structure of zonal flows in TJ-II

== Experimental campaign ==
2018 Spring

== Proposal title ==
'''Influence of electron / ion root and ion mass on the radial and frequency structure of zonal flows in TJ-II'''

== Name and affiliation of proponent ==
B. Liu [Southwest Jiaotong University, Chengdu 610031, China], U. Losada [Ciemat], T. Kobayashi [NIFS] 

== Details of contact person at LNF (if applicable) ==
Enter contact person here or N/A

== Description of the activity, including motivation/objectives and experience of the proponent (typically one-two pages)==
Results reported in the TJ-II plasma edge region has shown, with unprecedented detail, how sensitive are the properties of zonal flows to plasma conditions providing key experimental guidance for model validation <ref>Kobayashi, Losada, Liu et al., 2018</ref>.

Whether this sensitive is due to the magnitude / sign of radial neoclassical electric fields affecting Reynolds stress driven ZFs, neoclassical mechanisms, plasma collisionality or / and fast particle effects remain an open question.
 

== If applicable, International or National funding project or entity ==
Enter funding here or N/A

== Description of required resources ==
Required resources:
* Number of plasma discharges or days of operation: 
* Essential diagnostic systems:edge probes and HIBP
* Type of plasmas (heating configuration): ECRH in electron and ion root scenarios
* Specific requirements on wall conditioning if any:
* External users: need a local computer account for data access: yes/no
* Any external equipment to be integrated? Provide description and integration needs:

== Preferred dates and degree of flexibility ==20-05-2018


== References ==
<references /> <!-- DO NOT REMOVE THIS LINE OR YOU WON'T BE ABLE TO INCLUDE REFERENCES -->

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