Justin Kunimune
- Program Year: 3
- 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.
Publications
Publications:G. F. Swadling, W. A. Farmer, H. Chen, N. Aybar, M. S. Rubery, M. B. Schneider, D. A. Liedahl, N. C. Lemos, E. Tubman, J. S. Ross, D. E. Hinkel, O. L. Landen, M. D .Rosen, S. Rogers, K. Newman, D. Yanagisawa, N. Roskopf, S. Vonhof, B. L. Reichelt, J. H. Kunimune
"Resolving discrepancies in bang-time predictions for ICF experiments on the
NIF: Insights from the Build-A-Hohlraum Campaign"
Submitted to Physics of Plasmas
P. J. Adrian, B. Bachmann, D. T. Casey, S. Craxton, W. J. Garbett, M. Gatu Johnson, E. Hartouni, M. Hohenberger, D. Holunga, N. V. Kabadi, S. Khan, J. H. Kunimune, B. Lahmann, G. D. Sutcliffe, H. Whitley, A. B. Zylstra, J. A. Frenje
"Constraining the 3He+3He Gamow Energy Probed in High Energy Density Plasmas at the National Ignition Facility"
Submitted to Physics of Plasmas
B. L. Reichelt, M. Gatu Johnson, J. H. Kunimnue, W. T. Taitano, P. J. Adrian, S. Anderson, L. Chacon, T. E. Evans, C. J. Forrest, B. Haines, T. M. Johnson, N. V. Kabadi, R. D. Petrasso, I. Ruiz, C. Shuldberg, J. A. Frenje, C. K. Li
"Observation of kinetic mix enhancement in thin-shell Omega implosions"
Submitted to Physical Review Letters
T. M. Johnson, G. D. Sutcliffe, J. A. Pearcy, A. Birkel, G. Rigon, N. V. Kabadi, B. Lahmann, P. J. Adrian, B. L. Reichelt, J. H. Kunimune, S. G. Dannhoff, M. Cufari, F. Tsung, H. Chen, J. Katz, V. Tikhonchuk, C. K. Li
"Biermann-battery-driven magnetized collisionless shock precursors in laser-produced plasmas"
Submitted to Physical Review Letters
T. M. Johnson, B. Lahmann, L. D. Russell, N. Vanderloo, M. J. Cufari, B. L. Reichelt, C. W. Chang, A. Birkel, N. V. Kabadi, G. D. Sutcliffe, P. J. Adrian, J. A. Pearcy, J. H. Kunimune, S. G. Dannhoff, T. E. Evans, M. Gatu Johnson, F. Séguin, R. D. Petrasso, C. K. Li, J. A. Frenje
"Monte-Carlo toolkit for designing and validating Step-Range-Filter spectrometer designs"
Published in Review of Scientific Instruments (2025)
D. T. Casey, J. H. Kunimune, O. A. Hurricane, O. L. Landen, P. Springer, R. M. Bionta, C. V. Young, R. C. Nora, B. J. MacGowan, J. A. Gaffney, B. Kustowski, C. Weber, A. Kritcher, J. Milovich, M. Gatu Johnson, D. J. Schlossberg, S. Kerr, P. L. Volegov, D. N. Fittinghoff, V. Geppert-Kleinrath, C. H. Wilde, M. Freeman
"A multi-rocket piston model to study three-dimensional asymmetries in implosions at the National Ignition Facility"
Published in High Energy Density Physics (2025)
K. Churnetski, K. M. Woo, W. Theobald, C. Stoeckl, L. Ceurvorst, V. Gopalaswamy, H. G. Rinderknecht, P. V. Heuer, J. P. Knauer, C. J. Forrest, I. V. Igumenshchev, S. Ivancic, M. Michalko, R. C. Shah, A. Lees, P. B. Radha, R. Betti, C. A. Thomas, S. P. Regan, J. H. Kunimune, C. W. Wink, P. J. Adrian, M. Gatu Johnson, J. A. Frenje
"Three-dimensional reconstruction of implosion stagnation in laser direct drive on Omega"
Published in High Energy Density Physics (2024)
J. H. Kunimune, D. T. Casey, B. Kustowski, V. Geppert-Kleinrath, L. Divol, D. N. Fittinghoff, P. L. Volegov, V. A. Kruse, J. A. Gaffney, R. C. Nora, J. A. Frenje
"3D reconstruction of an ICF implosion with neural networks using multiple heterogeneous data sources"
Published in Review of Scientific Instruments (2024)
J. H. Kunimune, P. V. Heuer, B. L. Reichelt, T. M. Johnson, J. A. Frenje
"Quantification and visualization of uncertainties in reconstructed penumbral images of implosions at Omega"
Published in Review of Scientific Instruments (2024)
C. W. Wink, M. Gatu Johnson, S. P. Mackie, J. H. Kunimune, S. G. Dannhoff, Y. Lawrence, G. P. A. Berg, D. T. Casey, D. J. Schlossberg, V. Gopalaswamy, J. Katz, S. P. Regan, C. Stoeckl, C. Trosseille, T. Burgett, S. Ivancic, H. McClow, M. Scott, J. Frelier, J. A. Frenje
"The next-generation Magnetic Recoil Spectrometer on Omega and NIF for diagnosing ion temperature, yield, areal density, and alpha heating"
Published in Review of Scientific Instruments (2024)
B. L. Reichelt et 35 al.
"Ultra-fast single-crystal CVD diamonds in the Particle Time-Of-Flight detector for low yield burn-history measurements on the NIF"
Published in Review of Scientific Instruments (2025)
M. J. Cufari, N. Vanderloo, B. I. Buschmann, A. J. DeVault, B. C. Foo, J. A. Vargas, S. G. Dannhoff, T. E. Evans, T. M. Johnson, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, L. D. Russell, C. W. Wink, M. Gatu Johnson, R. D. Petrasso, J. A. Frenje
"Characterization of the image plate multi-scan response to mono-energetic x-rays"
Published in Review of Scientific Instruments (2024)
N. Vanderloo, M. J. Cufari, L. D. Russel, T. M. Johnson, J. A. Vargas, B. C. Foo, B. I. Buschmann, S. G. Dannhoff, A. J. DeVault, T. E. Evans, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, C. W. Wink, M. Gatu Johnson, R. D. Petrasso, J. A. Frenje, C. K. Li
"Image plate multi-scan response to fusion protons in the range of 1 – 14 MeV"
Published in Review of Scientific Instruments (2024)
L. D. Russel, T. M. Johnson, Y. Lawrence, B. L. Reichelt, N. Vanderloo, M. J. Cufari, B. I. Buschmann, S. G. Dannhoff, A. J. DeVault, E. Doeg, T. E. Evans, B. C. Foo, R. Frankel, J. H. Kunimune, J. A. Pearcy, J. A. Vargas, M. Gatu Johnson, J. A. Frenje
"Quantifying the effects of neutron fluence on proton signal retention in CR-39"
Published in Review of Scientific Instruments (2024)
B. C. Foo, B. I. Buschmann, M. J. Cufari, S. G. Dannhoff, A. J. DeVault, T. E. Evans, T. M. Johnson, J. H. Kunimune, Y. Lawrence, J. A Pearcy, B. L. Reichelt, L. D. Russel, N. Vanderloo, J. A. Vargas, C. W. Wink, M. Gatu Johnson, F. H. Seguin, R. D. Petrasso, J. A. Frenje
"Errors in the field reconstruction using CR-39 proton radiographs with high fluence variation"
Published in Review of Scientific Instruments (2024)
B. I. Buschmann, M. J. Cufari, N. Vanderloo, J. A. Vargas, B. C. Foo, A. J. DeVault, S. G. Dannhoff, T. E. Evans, T. M. Johnson, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, C. W. Wink, L. D. Russell, R. D. Petrasso, J. A. Frenje
"Characterization of the response of radiochromic film to quasi-monoenergetic X-rays through a cross-calibration with image plates"
Published in Review of Scientific Instruments (2024)
T. M. Johnson, J. Shan, R. Kishimori, M. J. Cufari, P. J. Adrian, B. Buschmann, C. W. Chang, S. G. Dannhoff, A. J. DeVault, T. E. Evans, B. Foo, J. H. Kunimune, Y. Lawrence, J. A. Pearcy, B. L. Reichelt, L. D. Russell, G. D. Sutcliffe, N. Vanderloo, J. A. Vargas, C. W. Wink, M. Gatu Johnson, F. H. Séguin, R. D. Petrasso, J. A. Frenje, C. K. Li
"Intrinsic fluence non-uniformity in D3He backlit proton radiography"
Published in Review of Scientific Instruments (2024)
G. D. Sutcliffe, P. J. Adrian, J. A. Pearcy, T. M. Johnson, J. H. 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
M. Gatu Johnson, P. J. Adrian, B. D. Appelbe, A. J. Crilly, C. J. Forrest, V. Y. Glebov, L. M. Green, B. M. Haines, N. V. Kabadi, G. Kagan, B. D. Keenan, J. H. Kunimune, C. K. Li, O. M. Mannion, R. D. Petrasso, F. H. Seguin, H. W. Sio, C. Stoeckl, G. D. Sutcliffe, W. T. Taitano, J. A. Frenje
"Impact of mid-Z gas fill on dynamics and performance of shock-driven implosions at the Omega laser"
Published in Physical Review E (2024)
H. Abu-Shawareb et 1354 al. (The Indirect Drive ICF Collaboration)
"Achievement of target gain larger than unity in an inertial fusion experiment"
Published in Physical Review Letters (2024)
B. L. Reichelt, N. V. Kabadi, J. A. Pearcy, M. Gatu Johnson, S. Dannhoff, B. Lahmann, J. A. Frenje, C. K. Li, G. D. Sutcliffe, J. H. Kunimune, R. D. 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)
J. H. Kunimune, M. Gatu Johnson, A. Moore, C. Trosseille, T. M. Johnson, G. P. A. Berg, A. Mackinnon, J. Kilkenny, J. A. 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)
P. J. Adrian, J. Armstrong, A. Birkel, C. W. Chang, S. Dannhoff, T. E. Evans, M. Gatu Johnson, T. M. Johnson, N. Kabadi, J. Kunimune, C. K. Li, B. L. Reichelt, S. P. Regan, J. A. Pearcy, R. D. Petrasso, G. Pien, M. McCluskey, F. H. Séguin, G. D. Sutcliffe, J. A. Frenje
"In situ calibration of charged particle spectrometers on the Omega Laser Facility using Am-241 and Ra-226 sources"
Published in Review of Scientific Instruments (2022)
P. J. Adrian, B. Bachmann, R. Betti, A. Birkel, P. Heuer, M. Gatu Johnson, N. Kabadi, J. P. Knauer, J. H. Kunimune, C. K. Li, O. Mannion, R. D. Petrasso, S. P. Regan, H. G. Rinderknecht, C. Stoeckl, F. H. Séguin, A. Sorce, R. C. Shah, G. D. Sutcliffe, J. A. Frenje
"X-ray-imaging spectrometer 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. G. Rinderknecht, P. V. Heuer, J. H. Kunimune, P. J. Adrian, J. P. Knauer, W. Theobald, R. Fairbanks, B. Brannon, L. Ceurvorst, V. Gopalaswamy, C. Williams, P. B. Radha, S. P. Regan, M. Gatu Johnson, F. H. Séguin, J. A. 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)
H. Abu-Shawareb et 1324 al. (The Indirect Drive ICF Collaboration)
"Lawson criterion for ignition exceeded in an inertial fusion experiment"
Published in Physical Review Letters (2022)
J. H. Kunimune, H. G. Rinderknecht, P. J. Adrian, P. Heuer, S. P. Regan, F. H. Séguin, M. Gatu Johnson, R. Bahukutumbi, J.