TJ-II: Two dimensional distribution of plasma potential and density: Difference between revisions
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== Name and affiliation of proponent == | == Name and affiliation of proponent == | ||
Kutchatov HIBP team | |||
Kharkov HIBP team | |||
Ciemat team | |||
== Details of contact person at LNF == | == Details of contact person at LNF == | ||
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== Description of the activity == | == Description of the activity == | ||
The first experiments aimed at obtaining the 2D distribution of plasma potential were performed in TJ-II using Heavy Ion Beam Probe (HIBP) with the variation of two parameters: plasma entrance angle and the energy of the Cs+ probing beam in the range 128-148 keV <ref>R. Sharma et al., Physics of Plasmas 27, 062502 (2020)</ref>. | |||
During 2021 HIBP was extended to 176 keV with a beam current up to 300 μA <ref>A. Melnikov et al., PPCF (2021) submitted</ref> | |||
The goal of this proposal is to expand the HIBP energy range [80 - 200 keV] to explore the whole TJ-II poloidal cross-section. | |||
== International or National funding project or entity == | == International or National funding project or entity == | ||
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== Description of required resources == | == Description of required resources == | ||
Required resources: | |||
Required resources: | |||
• Number of days of operation: 2 | |||
• Essential diagnostic systems: Dual HIBP [May / June] | |||
• Type of plasmas (heating configuration): ECRH & NBI | |||
• Wall conditioning: Sufficient density control for good reproducibility in NBI plasmas. | |||
== Preferred dates and degree of flexibility == | == Preferred dates and degree of flexibility == | ||
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[[Category:TJ-II internal documents]] | [[Category:TJ-II internal documents]] | ||
[[Category:TJ-II experimental proposals 2021]] | [[Category:TJ-II experimental proposals Spring 2021]] | ||
Latest revision as of 17:10, 21 January 2022
Experimental campaign
2021
Proposal title
TJ-II: Two dimensional distribution of plasma potential and density
Name and affiliation of proponent
Kutchatov HIBP team
Kharkov HIBP team
Ciemat team
Details of contact person at LNF
If applicable, enter contact person here or write N/A
Description of the activity
The first experiments aimed at obtaining the 2D distribution of plasma potential were performed in TJ-II using Heavy Ion Beam Probe (HIBP) with the variation of two parameters: plasma entrance angle and the energy of the Cs+ probing beam in the range 128-148 keV [1].
During 2021 HIBP was extended to 176 keV with a beam current up to 300 μA [2]
The goal of this proposal is to expand the HIBP energy range [80 - 200 keV] to explore the whole TJ-II poloidal cross-section.
International or National funding project or entity
If applicable, enter funding here or write N/A
Description of required resources
Required resources:
• Number of days of operation: 2
• Essential diagnostic systems: Dual HIBP [May / June]
• Type of plasmas (heating configuration): ECRH & NBI
• Wall conditioning: Sufficient density control for good reproducibility in NBI plasmas.
Preferred dates and degree of flexibility
Preferred dates: (format dd-mm-yyyy)