TJ-II:Langmuir Probes: Difference between revisions

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Several different heads can be mounted on the reciprocating drives: e.g., staircase Langmuir probes, a rake probe (as of 2009), or a multi-pin Langmuir probe (2010). A [[TJ-II:Biasing probe|biasing probe]] has also been used.
Several different heads can be mounted on the reciprocating drives: e.g., staircase Langmuir probes, a rake probe (as of 2009), or a multi-pin Langmuir probe (2010). A [[TJ-II:Biasing probe|biasing probe]] has also been used.


[[File:Langmuir_probe_head.gif|200px|thumb|left|Photo of a staircase Langmuir probe head with three sets of measurement pins]]
{| border="0" style="width:450px;"
 
|- valign="top"
[[File:TJ-II_Rake.png|300px|thumb|right|Photo of a Langmuir rake probe head]]
| [[File:Langmuir_probe_head.gif|200px|thumb|left|Photo of a staircase Langmuir probe head with three sets of measurement pins]]
 
| [[File:Multipin.jpg|200px|thumb|left|Photo of a multipin Langmuir probe head]]
[[File:Multipin.jpg|200px|thumb|left|Photo of a multipin Langmuir probe head]]
|-
| colspan="2" | [[File:TJ-II_Rake.png|450px|thumb|left|Photo of a Langmuir rake probe head]]
|-
|}


== See also ==
== See also ==

Revision as of 15:41, 29 July 2011

Location of the reciprocating Langmuir probes at TJ-II

TJ-II has two fast reciprocating drives for Langmuir probes (with a displacement velocity of approximately 1 m/s). [1] [2] [3] Probe drive 1 is located at φ = 38° (sector D4) and probe drive 2 at φ = 195° (sector B2).

Probe heads

Several different heads can be mounted on the reciprocating drives: e.g., staircase Langmuir probes, a rake probe (as of 2009), or a multi-pin Langmuir probe (2010). A biasing probe has also been used.

Photo of a staircase Langmuir probe head with three sets of measurement pins
Photo of a multipin Langmuir probe head
Photo of a Langmuir rake probe head

See also

References