Diagnostics: Difference between revisions
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[[File:Solar flare.png|420px|thumb|right|A prominence on the sun, an arc of plasma rising into the corona. Image credit: [http://sdo.gsfc.nasa.gov/ Solar Dynamics Observatory] (April, 2010)]] | [[File:Solar flare.png|420px|thumb|right|A prominence on the sun, an arc of plasma rising into the corona. Image credit: [http://sdo.gsfc.nasa.gov/ Solar Dynamics Observatory] (April, 2010)]] | ||
Diagnostics are the eyes and ears of fusion reactors. They return vital parameters such as the temperature, the density, the impurity content, the magnetic field et cetera. | Diagnostics are the eyes and ears of fusion reactors. They return vital parameters such as the temperature, the density, the impurity content, the magnetic field et cetera. | ||
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!''Name'' !!''Abbreviation''!!''Measurement parameters'' | !''Name'' !!''Abbreviation''!!''Measurement parameters'' | ||
|- | |- | ||
|Thomson Scattering || TS || Electron temperature < | |Thomson Scattering || TS || Electron temperature <\math>T_e</math>, electron density <math>n_e</math> | ||
|- | |- | ||
|Charge Exchange Recombination Spectroscopy || CXRS, CXS, CHERS, CER || Ion temperature < | |Charge Exchange Recombination Spectroscopy || CXRS, CXS, CHERS, CER || Ion temperature <math>T_i</math>, toroidal and poloidal plasma rotation velocity <math>v_\phi</math>, <math>v_\theta</math>, impurity density <math>n_Z</math> | ||
|- | |||
|Motional Stark Effect || MSE || Magnetic pitch angle <math>tan(\gamma) = B_\theta/B_\phi</math> | |||
|- | |||
|Electron Cyclotron Emission || ECE, ECEi || Electron temperature <math>T_e</math>, electron temperature fluctuations (turbulence) <math>\tilde{T}_e</math> | |||
|- | |||
|Mirnov coils, pickup coils || - || magnetic field components and fluctuations (outside plasma) | |||
|} | |} | ||
A special bi-annual conference on fusion diagnostics is held in the U.S.: | A special bi-annual conference on fusion diagnostics is held in the U.S.: The [[Topical Conference on High Temperature Plasma Diagnostics]] (HTPD) | ||
[[Special:AllPages|List of all current pages]] | [[Special:AllPages|List of all current pages]] | ||
Revision as of 15:32, 30 May 2012
A prominence on the sun, an arc of plasma rising into the corona. Image credit: Solar Dynamics Observatory (April, 2010)
Diagnostics are the eyes and ears of fusion reactors. They return vital parameters such as the temperature, the density, the impurity content, the magnetic field et cetera. Below you find a list of different diagnostics, together with their main measurement parameters.
| Name | Abbreviation | Measurement parameters |
|---|---|---|
| Thomson Scattering | TS | Electron temperature <\math>T_e</math>, electron density |
| Charge Exchange Recombination Spectroscopy | CXRS, CXS, CHERS, CER | Ion temperature , toroidal and poloidal plasma rotation velocity , , impurity density |
| Motional Stark Effect | MSE | Magnetic pitch angle |
| Electron Cyclotron Emission | ECE, ECEi | Electron temperature , electron temperature fluctuations (turbulence) |
| Mirnov coils, pickup coils | - | magnetic field components and fluctuations (outside plasma) |
A special bi-annual conference on fusion diagnostics is held in the U.S.: The Topical Conference on High Temperature Plasma Diagnostics (HTPD)