Аннотация:The modernization of the T-15 tokamak requires a detailed study of electromagnetic
diagnostic system [1]. The minimum required number of probes used to determine the
boundary of the plasma with a given accuracy is in operation. Measurement error is taken as
the calculation parameter and varies in the range from 0 to 3%. The analysis is conducted on
the basis of one of the possible discharge scenarios in the T-15 upgrade tokamak, calculated
using TOKSCEN and DINA numerical modules taken from the "Virtual Tokamak" codes
library (plasma-fusion.ru). The current increase stage is analyzed partially and stationary
discharge stage (total current of 1.4 to 2 MA) is analyzed at full measure. Recovery of the
plasma boundary is performed using the RPB (Reconstruction of Plasma Boundary) code [2]
under the condition that the probes location is on the first wall of the vacuum chamber.