The measurements requirements for moderate thermonuclear gain ICF experiments have been analyzed considering the critical yardsticks. Solutions have been proposed to meet most of these requirements and the diagnostics have been successfully tested on existing facilities. R &D are still needed for some of them to reach the specified spatial or temporal resolutions. Some measurements involve specific surrogate capsules or geometry: the transposition to the nominal capsule has to be further analyzed. It is important to stress that most of these measurements requires absolutely calibrated diagnostics and that they will have to work in a perturbed environment for high yield experiments.
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