Nuclear Aspects of Tokamak Fusion Test Reactor (TFTR) Diagnostics and Instrumentation

There are five principal aspects of the nuclear radiation from the high temperature plasmas of TFTR on its plasma diagnostic equipment. i) Important information about the plasma properties to be obtained from measurement of the neutrons, or other fusion reaction products; ii) Experimental studies to give design data for future tokamak devices and their instrumentation; iii) Transient noise or damage effects on the array of detectors for the collection of physics data about the plasma; iv) The effect of tritium on detectors that necessarily are in vacuum, directly connected to the tokamak vacuum vessel; and v) Damage of diagnostic components mounted close to the vacuum vessel. Each of these topics will be addressed after a brief description of the TFTR tokamak and its radiation environment.