The concept of service is not well suited to a fusion research experiment: users come to TJ-II with proposals for plasma experiments or proposals to test new instrumentation techniques.

used for edge spectroscopy oriented to measurement of electron density and temperature.

based on a CO2/HeNe dual system, provides line integrated electron density.

Monitoring of line emission from impurities.

used for edge spectroscopy oriented to measurement of electron density and temperature.

able to measure in the range of 100.000 frames/s, used for turbulence studies.

measures plasma rotation, from line shift, and ion temperature, from line broadening.

20-60 Ghz radiomenter, measures the electron temperature.

Determines the ion temperature from the energy distribution of escaping neutrals, generated by charge exchange reactions.

Several systems: swept frequency for electron density profile measurements, stationary frequency system for turbulence studies. Operates in the range 30-70 Ghz.

Based on a Cesium beam at 200 KV , used for internal plasma potential measurments.

Injects selcted trace impurities, used for measurement of the particle confinement time.

Rubi laser based, uses two dimensional intensified camera. Obtains density and Temperature profile along a full plasma diameter.

metal bolometers for tomography of the global radiation emission.

used to monitor edge parameters.

Monitoring of line emission from impurities.

same as above, with a 140 GHz beam, useful for lower densities.

several linear cameras for tomography of the SXR emission, linked to the product of electron density and temperature.