Justin Kunimune

  • Program Year: 2
  • Academic Institution: Massachusetts Institute of Technology
  • Field of Study: Fusion
  • Academic Advisor: Johan Frenje
  • Residencies:
    Lawrence Livermore National Laboratory (2023)
    Lawrence Livermore National Laboratory (2024)
  • Degree(s):
    B.S. Engineering, Olin College of Engineering, 2019

Summary of Research

Justin works on nuclear diagnostics for inertial confinement fusion implosions. Specifically, he works on the knock-on deuteron imager (KoDI) and the temporal magnetic recoil spectrometer (MRSt).

KoDI is a penumbral imager that uses scattered deuterons to measure the shape of both the hot-spot and dense fuel of implosions at OMEGA. Fielding KoDI on multiple lines of sight allows for a 3D understanding of the implosion morphology. Justin's research currently focuses on developing reconstruction algorithms needed to produce the implosion morphology from raw data.

MRSt is a time-resolving neutron spectrometer that will measure the time-resolved ion temperature and areal density of implosions at the NIF. This will provide highly valuable information about implosion dynamics and ignition proximity. Justin's current research involves predicting and comparing the performance of various designs using synthetic data analysis.


G. Sutcliffe, P. Adrian, J. Pearcy, T. Johnson, J. Kunimune, B. Pollock, J. Moody, N. Loureiro, C. K. Li
"Observation of electromagnetic filamentary structures produced by the Weibel instability in laser-driven plasmas"
Submitted to Physical Review Letters

B. Reichelt, N. Kabadi, J. Pearcy, M. Gatu Johnson, S. Dannhoff, B. Lahmann, J. Frenje, C. K. Li, G. Sutcliffe, J. Kunimune, R. Petrasso, H. Sio, A. Moore, E. Mariscal, E. Hartouni
"Determining spectral response of the National Ignition Facility particle time of flight diagnostic to x rays"
Published in Review of Scientific Instruments (2023)

P. Adrian, B. Bachmann, R. Betti, A. Birkel, P. Heuer, M. Gatu Johnson, N. Kabadi, J. Knauer, J. Kunimune, C. K. Li, O. Mannion, R. Petrasso, S. Regan, H. Rinderknecht, C. Stoeckl, F. Séguin, A. Sorce, R. Shah, G. Sutcliffe, J. Frenje
"X-ray-imaging spectrometer (XRIS) for studies of residual kinetic energy and low-mode asymmetries in inertial confinement fusion implosions at OMEGA"
Published in Review of Scientific Instruments (2022)

H. Rinderknecht, P. Heuer, J. Kunimune, P. Adrian, J. Knauer, W. Theobald, R. Fairbanks, B. Brannon, L. Ceurvorst, V. Gopalaswamy, C. Williams, P. Radha, S. Regan, M. Gatu Johnson, F. Séguin, J. Frenje
"A knock-on deuteron imager for measurements of fuel and hotspot asymmetry in direct-drive inertial confinement fusion implosions (invited)"
Published in Review of Scientific Instruments (2022)

P. Adrian, J. Armstrong, A. Birkel, C. Chang, S. Dannhoff, T. Evans, M. Gatu Johnson, T. Johnson, N. Kabadi, J. Kunimune, C. K. Li, B. Reichelt, S. Regan, J. Pearcy, R. Petrasso, G. Pien, M. McCluskey, F. Séguin, G. Sutcliffe, J. Frenje
"In situ calibration of charged particle spectrometers on the OMEGA Laser Facility using 241Am and 226Ra sources"
Published in Review of Scientific Instruments (2022)

H. Abu-Shawareb, R. Acree, P. Adams, et al.
"Lawson criterion for ignition exceeded in an inertial fusion experiment"
Published in Physical Review Letters (2022)

J. Kunimune, M. Gatu Johnson, A. Moore, C. Trosseille, T. Johnson, G. Berg, A. Mackinnon, J. Kilkenny, J. Frenje
"Phased plan for the implementation of the time-resolving magnetic recoil spectrometer on the National Ignition Facility"
Published in Review of Scientific Instruments (2022)

J. Kunimune, H. Rinderknecht, P. Adrian, P. Heuer, S. Regan, F. Séguin, M. Gatu Johnson, R. Bahukutumbi, J. Knauer, B. Bachmann, J. Frenje
"Knock-on deuteron imaging for diagnosing the morphology of an ICF implosion at OMEGA"
Published in Physics of Plasmas (2022)

G. Berg, J. Frenje, J. Kunimune, C. Trosseille, M. Couder, J. Kilkenny, A. Mackinnon, A. Moore, C. Waltz, M. Weischer
"Design of the ion-optics for the MRSt neutron spectrometer at NIF"
Published in Review of Scientific Instruments (2022)

B. Lahmann, M. Gatu Johnson, J. Frenje, A. Birkel, P. Adrian, N. Kabadi, J. Kunimune, T. Johnson, J. Peacy, B. Reichelt, F. Séguin, G. Sutcliffe, R. Petrasso
"Extension of charged-particle spectrometer capabilities for diagnosing implosions on OMEGA, Z, and the NIF"
Published in Review of Scientific Instruments (2021)

J. Pearcy, N. Kabadi, A. Birkel, P. Adrian, B. Lahmann, B. Reichelt, T. M. Johnson, G. Sutcliffe, J. Kunimune, M. Gatu-Johnson, A. Bose, C. K. Li
"Characterizing X-ray Transmission Through Filters Used in HEDP Diagnostics"
Published in Review of Scientific Instruments (2021)

J. Kunimune, J. Frenje, G. Berg, C. Trosseille, R. Nora, C. Waltz, A. Moore, J. Field, J. Kilkenny, A. Mackinnon
"Top-level physics requirements and simulated performance of the MRSt on NIF"
Published in Review of Scientific Instruments (2021)

J. Kunimune
"Minimum-error world map projections defined by polydimensional meshes"
Published in International Journal of Cartography (2020)

B. Oh, J. Kunimune, L. Anfenson, J. Spicher, R. Christianson
"Undergraduate demonstration of a hall effect thruster: self-directed learning in an advanced project context"
Published in ASEE Virtual Annual Conference Content Access (2020)