منابع مشابه
Plasma Recombination in Runaway Discharges in Tokamak TCABR
A new regime of runaway discharges has been observed in the TCABR tokamak. One of the most distinctive features of this regime is the e ect of plasma detachment from the limiter. This experimental fact can only be explained by the volume recombination, which requires a low-temperature plasma. The analysis of the energy and particle balance in the system plasma-relativistic runaway beam in TCABR...
متن کاملReconstruction activities and first results from the Thomson scattering diagnostic on the TCABR tokamak
An incoherent and infrared Thomson scattering diagnostic (ITS) was transferred from ISTTOK (Lisboa) and reconstructed on TCABR (S. Paulo). In the first phase of this international collaboration, the diagnostic uses a Neodymium:Glass laser with up to 10 Joules per laser pulse and a first generation polychromator with three pairs of interference filters and avalanche photodiodes. It measures 90o ...
متن کاملDesign and Testing of ECE Radiometer for Sinp-Tokamak
A multi channel ECE Radiometer, in the frequency range of 75 110 GHz, has been designed, constructed and tested for the SINP-Tokamak to diagnose second harmonic X-mode electron cyclotron emission (ECE). This frequency range covers approximately 80% of the plasma cross section in case of a magnetic eld of B = 1.5 T. For the maximum eld of the SINP-Tokamak B = 2.0 T, about 50% is covered. The ECE...
متن کاملPlasma Resistivity Determination in Runaway Discharges From Positive Voltage Spikes on TCABR Tokamak
Plasma resistivity is estimated in runaway discharges on TCABR tokamak from the decay of positive voltage spikes using method developed in I. El Chamaa Neto et al., Phys. Plasmas 7, 2894 (2000). In this regime, the plasma detachment from the limiter is observed experimentally indicating that plasma recombination is the main process of plasma particle losses. In order to investigate if this proc...
متن کاملThe Radiometry of Multiple Images
We introduce a methodology for radiometric reconstruction, the simultaneous recovery of multiple illuminants and surface albedoes from multiple views, assuming that the geometry of the scene and of the cameras is known. We formulate the linear theory of multiple illuminants and show its similarities with the theory of geometric recovery of multiple views. Linear and non-linear implementations a...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2004
ISSN: 0103-9733
DOI: 10.1590/s0103-97332004000800048