Magnetic confinement fusion plasma temperature diagnostic method, apparatus and device

Abstract

This invention relates to a method, apparatus, and equipment for diagnosing the temperature of magnetically confined fusion plasma. The method includes: establishing a neutron yield database, including a thermonuclear fusion neutron yield database and a beam-target reaction neutron yield database; collecting the ion density and total neutron yield of external experimental equipment; assuming only beam-target reactions exist in the initial stage, obtaining an initial temperature estimate based on the ion density and total neutron yield; obtaining a first neutron yield and a second neutron yield based on the initial temperature estimate and ion density, and obtaining the theoretical total neutron yield; comparing the difference between the total neutron yield and the theoretical total neutron yield until convergence, obtaining the temperature estimate as the plasma temperature; and outputting the diagnostic result as the initial temperature for the next moment to achieve time-series evolution analysis. This scheme fully utilizes the thermonuclear fusion and beam-target reaction databases, effectively distinguishing the contributions of the two types of reactions to the neutron yield, and avoiding the limitations of traditional single-reaction models.

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