Abstract
A concept for using an intermediate distance (0.3-3.0m) neutron time-of-flight (nToF) to provide a constraint on the measurement of the time-dependence of ion temperature in inertial confinement fusion implosions is presented. Simulated nToF signals at different distances are generated and, with a priori knowledge of the burn-averaged quantities and burn history, analyzed to determine requirements for a future detector. Results indicate a signal-to-noise ratio >50 and time resolution <20ps to constrain the ion temperature gradient to ∼±25% (0.5 keV/100ps).
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