Constraining time-dependent ion temperature measurements in inertial confinement fusion (ICF) implosions with an intermediate distance neutron time-of-flight (nToF) detector.

Autor:	Moore AS; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Schlossberg DJ; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Eckart MJ; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Hartouni EP; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Hilsabeck TJ; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Jeet JS; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Kerr SM; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Nora RC; Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA., Kilkenny J; General Atomics, San Diego, California 92121, USA.
Jazyk:	angličtina
Zdroj:	The Review of scientific instruments [Rev Sci Instrum] 2022 Nov 01; Vol. 93 (11), pp. 113536.
DOI:	10.1063/5.0099933
Abstrakt:	A concept for using an intermediate distance (0.3-3.0 m) 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 <20 ps to constrain the ion temperature gradient to ∼±25% (0.5 keV/100 ps).
Databáze:	MEDLINE
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