DIAGNOSTICS PROPOSAL FOR T-15 FUSION RESEARCH BY MEANS OF CHARGED PRODUCTS AND NEUTRONS

摘要

A majority of the planned fusion product diagnostics for the T-15 tokamak are described. These include a few dozen silicon diodes to detect escaping charged fusion products with high energy resolution. They will resolve the charged particle fluxes in radial, pitch angle, energy and time dependences. In addition, measurements of DD neutron birth profiles are proposed to be carried out using two independent systems — a bubble chamber and a 'sandwich' radiometer that have not been used in tokamaks to date. A new method of plasma current profile measurement is suggested, based on the detection of 'test' alpha particles emitted by radioactive sources at the vessel wall.