1. The Diagnostic Systems in FTU
- Author
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O. Tudisco, G.M. Apruzzese, P. Buratti, L. Cantarini, A. Canton, L. Carraro, V. Cocilovo, R. de Angelis, M. de Benedetti, B. Esposito, L. Gabellieri, E. Giovannozzi, G. Granucci, L.A. Grosso, G. Grosso, P. Innocente, H. Kroegler, M. Leigheb, G. Monari, D. Pacella, L. Panaccione, V. Pericoli-Ridolfini, G. Pizzicaroli, S. Podda, M.E. Puiatti, G. Rocchi, A. Sibio, A. Simonetto, P. Smeulders, U. Tartari, N. Tartoni, B. Tilia, M. Valisa, V. Zanza, and M Zerbini
- Subjects
diagnostics ,FTU ,tokamak - Abstract
The design of diagnostics for the Frascati Tokamak Upgrade (FTU) is challenging because of the compactness of the machine (8-cm-wide ports) and the low operating temperatures requiring the presence of a cryostat. Nevertheless, a rather complete diagnostic system has been progressively installed. The basic systems include a set of magnetic probes, various visible and ultraviolet spectrometers, electron cyclotron emission (ECE) for electron temperature profiles measurements and electron tails monitoring, far-infrared and CO2 interferometry, X-ray (soft and hard) measurements, a multichord neutron diagnostics (with different type detectors), and a Thomson scattering system. Some diagnostics specific to the FTU physics program have been used such as microwave reflectometry for turbulence studies, edge-scanning Langmuir probes for radio-frequency coupling assessment, oblique ECE, and a fast electron bremsstrahlung (FEB) camera for lower hybrid current drive-induced fast electron tails. These systems are briefly reviewed in this paper. Further developments including a scanning CO2 laser two-color interferometer, two FEB cameras for tomographic analysis, a motional Stark effect system, and a collective Thomson scattering system are also described.
- Published
- 2004