Simultaneous analysis of collinear neutron time-of-flight (nToF) traces applied to pulsed fusion experiment

Mitrani, James M.; Ampleford, David J.; Chandler, Gordon A.; Eckart, Mark J.; Hahn, Kelly D.; Jeet, Justin; Kerr, Shaun M.; Mannion, Owen M.; Moore, Alastair M.; Schlossberg, David J.; Youmans, Amanda E.; Grim, Gary P.

doi:10.1063/5.0217218

Simultaneous analysis of collinear neutron time-of-flight (nToF) traces applied to pulsed fusion experiment

Journal Article · Wed Aug 14 00:00:00 EDT 2024 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/5.0217218· OSTI ID:2475549

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Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sandia National Laboratory (SNL-NM), Albuquerque, NM (United States)

On pulsed fusion experiments, the neutron time of flight (nToF) diagnostic provides critical information on the fusion neutron energy spectrum. This work presents an analysis technique that uses two collinear nToF detectors, potentially to measure nuclear bang time and directional flow velocities. Two collinear detectors may be sufficient to disambiguate the contributions of nuclear bang time and directional flow velocities to the first moment of the neutron energy spectrum, providing an independent measurement of nuclear bang time. In conclusion, preliminary results from measured nToF traces on the National Ignition Facility and additional applications of this technique are presented.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; NA0003525

OSTI ID:: 2475549

Report Number(s):: LLNL--JRNL-869563; 1106275

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 8 Vol. 95; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (18)

Evidence for suprathermal ion distribution in burning plasmas Hartouni, E. P.; Moore, A. S.; Crilly, A. J. Nature Physics, Vol. 19, Issue 1 https://doi.org/10.1038/s41567-022-01809-3	journal	November 2022
Diagnosing magnetized liner inertial fusion experiments on Za) Hansen, S. B.; Gomez, M. R.; Sefkow, A. B. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4921217	journal	May 2015
Analysis of the neutron time-of-flight spectra from inertial confinement fusion experiments Hatarik, R.; Sayre, D. B.; Caggiano, J. A. Journal of Applied Physics, Vol. 118, Issue 18 https://doi.org/10.1063/1.4935455	journal	November 2015
Impact of temperature-velocity distribution on fusion neutron peak shape Munro, D. H.; Field, J. E.; Hatarik, R. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4976857	journal	May 2017
Calibration of a neutron time-of-flight detector with a rapid instrument response function for measurements of bulk fluid motion on OMEGA Mannion, O. M.; Glebov, V. Yu.; Forrest, C. J. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5037324	journal	October 2018
Using multiple neutron time of flight detectors to determine the hot spot velocity Hatarik, R.; Nora, R. C.; Spears, B. K. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5039372	journal	October 2018
The five line-of-sight neutron time-of-flight (nToF) suite on the National Ignition Facility (NIF) Moore, A. S.; Hartouni, E. P.; Schlossberg, D. Review of Scientific Instruments, Vol. 92, Issue 2 https://doi.org/10.1063/5.0040730	journal	February 2021
Construction and study of instrument response functions for analysis of the National Ignition Facility (NIF) neutron time-of-flight detectors Kerr, S.; Eckart, M. J.; Hahn, K. Review of Scientific Instruments, Vol. 93, Issue 11 https://doi.org/10.1063/5.0101868	journal	November 2022
Design of a multi-detector, single line-of-sight, time-of-flight system to measure time-resolved neutron energy spectra Schlossberg, D. J.; Moore, A. S.; Kallman, J. S. Review of Scientific Instruments, Vol. 93, Issue 11 https://doi.org/10.1063/5.0101874	journal	November 2022
Measurements of fusion reaction history in inertially confined burning plasmas Kim, Y.; Meaney, K. D.; Geppert-Kleinrath, H. Physics of Plasmas, Vol. 30, Issue 7 https://doi.org/10.1063/5.0146704	journal	July 2023
Time-of-flight vs time-of-arrival in neutron spectroscopic measurements for high energy density plasmas Grim, G. P.; Mitrani, J. M.; Chandler, G. A. Review of Scientific Instruments, Vol. 95, Issue 8 https://doi.org/10.1063/5.0214639	journal	August 2024
`emcee` : The MCMC Hammer Foreman-Mackey, Daniel; Hogg, David W.; Lang, Dustin Publications of the Astronomical Society of the Pacific, Vol. 125, Issue 925 https://doi.org/10.1086/670067	journal	March 2013
Relativistic calculation of fusion product spectra for thermonuclear plasmas Ballabio, L.; Källne, J.; Gorini, G. Nuclear Fusion, Vol. 38, Issue 11 https://doi.org/10.1088/0029-5515/38/11/310	journal	November 1998
Interpreting inertial fusion neutron spectra Munro, David H. Nuclear Fusion, Vol. 56, Issue 3 https://doi.org/10.1088/0029-5515/56/3/036001	journal	February 2016
An efficient method for finding the minimum of a function of several variables without calculating derivatives Powell, M. J. D. The Computer Journal, Vol. 7, Issue 2 https://doi.org/10.1093/comjnl/7.2.155	journal	February 1964
Observation of Hydrodynamic Flows in Imploding Fusion Plasmas on the National Ignition Facility Schlossberg, D. J.; Grim, G. P.; Casey, D. T. Physical Review Letters, Vol. 127, Issue 12 https://doi.org/10.1103/physrevlett.127.125001	journal	September 2021
Initial MCNP6 Release Overview Goorley, T.; James, M.; Booth, T. Nuclear Technology, Vol. 180, Issue 3 https://doi.org/10.13182/nt11-135	journal	December 2012
Gaussian profile estimation in one dimension Hagen, Nathan; Kupinski, Matthew; Dereniak, Eustace L. Applied Optics, Vol. 46, Issue 22 https://doi.org/10.1364/ao.46.005374	journal	January 2007

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