TJ-II:Langmuir Probes - Revision history

Admin: /* See also */

2025-09-29T16:30:02Z

Admin at 16:26, 29 September 2025

2025-09-29T16:26:12Z

← Older revision		Revision as of 18:26, 29 September 2025
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	\| [[File:Probe_8.png\|400px\|thumb\|left\|Photo of an 8-pin Langmuir rake probe head]]		\| [[File:Probe_8.png\|400px\|thumb\|left\|Photo of an 8-pin Langmuir rake probe head]]
	\|-		\|-
	\| [[File:Vorticity probe.png\|400px\|thumb\|left\|Photo of a vorticity probe probe head<ref>D. Carralero Ortiz, ''Electromagnetic Instability Studies in Fusion Plasmas Edge'', [https://oa.upm.es/11485/ PhD thesis, UPM]</ref>]]		\| [[File:Vorticity probe.png\|400px\|thumb\|left\|Photo of a vorticity probe probe head<ref>D. Carralero Ortiz, ''Electromagnetic Instability Studies in Fusion Plasmas Edge'', [https://oa.upm.es/11485/ PhD thesis, UPM (2012)]</ref>]]
	\|		\|
	\|}		\|}

Admin at 08:04, 29 September 2025

2025-09-29T08:04:25Z

← Older revision		Revision as of 10:04, 29 September 2025
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	== Probe heads ==		== 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 [[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).

	{\| border="0" style="width:450px;"		{\| border="0" style="width:450px;"
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	\| [[File:Probe_8.png\|400px\|thumb\|left\|Photo of an 8-pin Langmuir rake probe head]]		\| [[File:Probe_8.png\|400px\|thumb\|left\|Photo of an 8-pin Langmuir rake probe head]]
	\|-		\|-
			\| [[File:Vorticity probe.png\|400px\|thumb\|left\|Photo of a vorticity probe probe head<ref>D. Carralero Ortiz, ''Electromagnetic Instability Studies in Fusion Plasmas Edge'', [https://oa.upm.es/11485/ PhD thesis, UPM]</ref>]]
			\|
	\|}		\|}

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	* [[TJ-II:Limiter\|Limiter probes]]		* [[TJ-II:Limiter\|Limiter probes]]
			* [[TJ-II:Biasing probe\|Biasing probe]]

	== References ==		== References ==
	<references />		<references />

Admin at 13:03, 9 February 2021

2021-02-09T13:03:02Z

← Older revision		Revision as of 15:03, 9 February 2021
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	\| [[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]]		\| [[File:TJ-II_Rake.png\|400px\|thumb\|left\|Photo of a 12-pin Langmuir rake probe head]]
			\| [[File:Probe_8.png\|400px\|thumb\|left\|Photo of an 8-pin Langmuir rake probe head]]
	\|-		\|-
	\|}		\|}

Admin: Updated reference links

2018-04-03T15:55:44Z

Updated reference links

← Older revision		Revision as of 17:55, 3 April 2018
Line 1:		Line 1:
	[[File:TJ-II_Langmuir.png\|400px\|thumb\|right\|Location of the reciprocating Langmuir probes at TJ-II]]		[[File:TJ-II_Langmuir.png\|400px\|thumb\|right\|Location of the reciprocating Langmuir probes at TJ-II]]
	[[TJ-II]] has two fast reciprocating drives for [[:Wikipedia:Langmuir probe\|Langmuir probes]] (with a displacement velocity of approximately 1 m/s).		[[TJ-II]] has two fast reciprocating drives for [[:Wikipedia:Langmuir probe\|Langmuir probes]] (with a displacement velocity of approximately 1 m/s).
	<ref>~~[http://link.aip.org/link/?RSINAK/70/415/1~~ M.A. Pedrosa et al, ''Fast movable remotely controlled Langmuir probe system'', Rev. Sci. Instrum. '''70''' (1999) 415]</ref>		<ref>M.A. Pedrosa et al, ''Fast movable remotely controlled Langmuir probe system'', [[doi:10.1063/1.1149350\|Rev. Sci. Instrum. '''70''' (1999) 415]]</ref>
	<ref>~~[http://dx.doi.org/10.1002/ctpp.200410104~~ E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>		<ref>E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', [[doi:10.1002/ctpp.200410104\|Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]]</ref>
	<ref>~~[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003~~ M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>		<ref>M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', [[doi:10.1103/PhysRevLett.100.215003\|Phys. Rev. Lett. '''100''' (2008) 215003]]</ref>
	Probe drive 1 is located at φ = 38.2°, R=134 cm ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).		Probe drive 1 is located at φ = 38.2°, R=134 cm ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).

Daniellopezbruna at 09:43, 22 October 2014

2014-10-22T09:43:39Z

← Older revision		Revision as of 11:43, 22 October 2014
Line 4:		Line 4:
	<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>		<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>
	<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>		<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>
	Probe drive 1 is located at φ = 38° ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).		Probe drive 1 is located at φ = 38.2°, R=134 cm ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).

	== Probe heads ==		== Probe heads ==

Admin at 14:41, 29 July 2011

2011-07-29T14:41:55Z

← Older revision		Revision as of 16:41, 29 July 2011
Line 10:		Line 10:
	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 ==

Admin at 10:20, 29 July 2011

2011-07-29T10:20:59Z

← Older revision		Revision as of 12:20, 29 July 2011
Line 8:		Line 8:
	== Probe heads ==		== Probe heads ==

	Several different heads can be mounted on the reciprocating drives: e.g., ~~multi-pin~~ Langmuir probes, or a rake probe (as of 2009). 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 ~~multi-pin~~ Langmuir probe head with three sets of measurement pins]]		[[File:Langmuir_probe_head.gif\|200px\|thumb\|left\|Photo of a staircase Langmuir probe head with three sets of measurement pins]]

	[[File:TJ-II_Rake.png\|300px\|thumb\|right\|Photo of a Langmuir rake probe head]]		[[File:TJ-II_Rake.png\|300px\|thumb\|right\|Photo of a Langmuir rake probe head]]

			[[File:Multipin.jpg\|200px\|thumb\|left\|Photo of a multipin Langmuir probe head]]

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

Admin at 10:43, 30 November 2010

2010-11-30T10:43:38Z

← Older revision		Revision as of 12:43, 30 November 2010
Line 4:		Line 4:
	<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>		<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>
	<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>		<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>
	Probe drive 1 is located at φ = 35° ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).		Probe drive 1 is located at φ = 38° ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).

	== Probe heads ==		== Probe heads ==

Admin at 07:46, 28 January 2010

2010-01-28T07:46:11Z

← Older revision		Revision as of 09:46, 28 January 2010
Line 13:		Line 13:

	[[File:TJ-II_Rake.png\|300px\|thumb\|right\|Photo of a Langmuir rake probe head]]		[[File:TJ-II_Rake.png\|300px\|thumb\|right\|Photo of a Langmuir rake probe head]]

			== See also ==

			* [[TJ-II:Limiter\|Limiter probes]]

	== References ==		== References ==
	<references />		<references />

← Older revision		Revision as of 18:30, 29 September 2025
Line 26:		Line 26:
	* [[TJ-II:Limiter\|Limiter probes]]		* [[TJ-II:Limiter\|Limiter probes]]
	* [[TJ-II:Biasing probe\|Biasing probe]]		* [[TJ-II:Biasing probe\|Biasing probe]]
			* [[TJ-II:Retarding Field Analyzer\|Retarding Field Analyzer]]

	== References ==		== References ==
	<references />		<references />

← Older revision		Revision as of 17:55, 3 April 2018
Line 1:		Line 1:
	[[File:TJ-II_Langmuir.png\|400px\|thumb\|right\|Location of the reciprocating Langmuir probes at TJ-II]]		[[File:TJ-II_Langmuir.png\|400px\|thumb\|right\|Location of the reciprocating Langmuir probes at TJ-II]]
	[[TJ-II]] has two fast reciprocating drives for [[:Wikipedia:Langmuir probe\|Langmuir probes]] (with a displacement velocity of approximately 1 m/s).		[[TJ-II]] has two fast reciprocating drives for [[:Wikipedia:Langmuir probe\|Langmuir probes]] (with a displacement velocity of approximately 1 m/s).
	<ref>~~[http://link.aip.org/link/?RSINAK/70/415/1~~ M.A. Pedrosa et al, ''Fast movable remotely controlled Langmuir probe system'', Rev. Sci. Instrum. '''70''' (1999) 415]</ref>		<ref>M.A. Pedrosa et al, ''Fast movable remotely controlled Langmuir probe system'', [[doi:10.1063/1.1149350\|Rev. Sci. Instrum. '''70''' (1999) 415]]</ref>
	<ref>~~[http://dx.doi.org/10.1002/ctpp.200410104~~ E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>		<ref>E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', [[doi:10.1002/ctpp.200410104\|Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]]</ref>
	<ref>~~[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003~~ M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>		<ref>M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', [[doi:10.1103/PhysRevLett.100.215003\|Phys. Rev. Lett. '''100''' (2008) 215003]]</ref>
	Probe drive 1 is located at φ = 38.2°, R=134 cm ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).		Probe drive 1 is located at φ = 38.2°, R=134 cm ([[TJ-II:Sectors\|sector]] D4) and probe drive 2 at φ = 195° ([[TJ-II:Sectors\|sector]] B2).