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TJ-II: Injection of TESPELs with compounds or multiple elements of interest for W7-X: Difference between revisions
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TJ-II: Injection of TESPELs with compounds or multiple elements of interest for W7-X (view source)
Revision as of 08:53, 29 March 2022
, 29 March 2022→Approach and Methodology
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=== Approach and Methodology === | === Approach and Methodology === | ||
NBI heated plasmas are best for this as the plasma is not affected by a density cut-off limit, as can occur for injections into ECRH plasmas. The standard magnetic configuration with one or both NBI heaters working will be employed. | NBI heated plasmas are best for this as the plasma is not affected by a density cut-off limit, as can occur for injections into ECRH plasmas. The standard magnetic configuration with one or both NBI heaters working will be employed. Frequent entries into the TJ-II experimental hall to change the TESPEL revolver position are required. Given the need to minimize such entries the number of TESPELs to be injected will be limited. Thus experiment can be run in conjunction with pellet or LBO experiments. | ||
== 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 plasma discharges or days of operation: | * Number of plasma discharges or days of operation: 2 days | ||
* Essential diagnostic systems (without which, the proposal cannot be conducted): TESPEL injector and UV-visible spectrometer | * Essential diagnostic systems (without which, the proposal cannot be conducted): TESPEL injector and UV-visible spectrometer | ||
* Other diagnostic system of special interest: Thomson scattering, VUV spectrometer | * Other diagnostic system of special interest: Thomson scattering, VUV spectrometer | ||
* Type of plasmas (heating and magnetic configuration): | * Type of plasmas (heating and magnetic configuration): NBI (balanced or unbalanced) and 100_44_64 | ||
* Specific requirements on wall conditioning if any: none | * Specific requirements on wall conditioning if any: none | ||
* External users: need a local computer account for data access: no | * External users: need a local computer account for data access: no | ||
* Any external equipment to be integrated? | * Any external equipment to be integrated? W7-X fast-frame imaging camera (has been done previously) | ||
== Preferred dates and degree of flexibility == | == Preferred dates and degree of flexibility == | ||