A magnetic particle time-of-flight (MagPTOF) diagnostic for measurements of shock and compression-bang time at the NIF [National Ignition Facility]

Dataset · Mon May 17 04:00:00 EDT 2021

DOI:https://doi.org/10.7910/DVN/GVWBF2· OSTI ID:1882417

Rinderknecht, H. G. ^[1]; Sio, H.; Frenje, J. A.; Magoon, J.; Agliata, A.; Shoup, M.; Ayers, S.; Bailey, C. G.; Johnson, M. Gatu; Zylstra, A. B.; Sinenian, N.; Rosenberg, M. J.; Li, C. K.; Seguin, F. H.; Petrasso, R. D.; Rygg, J. R.; Kimbrough, J. R.; Mackinnon, A.; Bell, P.; Bionta, R. ; Clancy, T.; Zacharias, R.; House, A.; Doppner, T.; Park, H. S.; Lepape, S.; Landen, O.; Meezan, N.; Robey, H.; Glebov, V. Yu.; Hohenberger, M.; Stoeckl, C.; Sangster, T. C.; Li, C.; Parat, J.; Olson, R.; Kline, J.; Kilkenny, J.

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1. OSTI

A magnetic particle time-of-flight (MagPTOF) diagnostic has been designed to measure shock- and compression-bang time using DHe-fusion protons and DD-fusion neutrons, respectively, at the National Ignition Facility (NIF). This capability, in combination with shock-burn weighted areal density measurements, will significantly constrain the modeling of the implosion dynamics. This design is an upgrade to the existing particle time-of-flight (pTOF) diagnostic, which records bang times using DD or DT neutrons with an accuracy better than ±70 ps [H. G. Rinderknecht et al., Rev. Sci. Instrum. 83, 10D902 (2012)]. The inclusion of a deflecting magnet will increase DHe-proton signal-to-background by a factor of 1000, allowing for the first time simultaneous measurements of shock and compression-bang times in DHe-filled surrogate implosions at the NIF.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: FG52-09NA29553; NA0000877; FC52-08NA28752
• OSTI ID: 1882417
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY