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One dimensional imager of neutrons on the Z machine

Review of Scientific Instruments

Ampleford, David J.; Ruiz, Carlos L.; Fittinghoff, David N.; Vaughan, Jeremy; Hahn, Kelly; Lahmann, Brandon; Gatu-Johnson, Maria; Frenje, Johan; Petrasso, Richard; Ball, Christopher R.; Maurer, Andrew J.; Knapp, P.F.; Harvey-Thompson, Adam J.; Fisher, John; Alberto, Perry; Torres, Jose; Jones, Brent M.; Rochau, G.A.; May, Mark J.

We recently developed a one-dimensional imager of neutrons on the Z facility. The instrument is designed for Magnetized Liner Inertial Fusion (MagLIF) experiments, which produce D-D neutrons yields of ∼3 × 1012. X-ray imaging indicates that the MagLIF stagnation region is a 10-mm long, ∼100-μm diameter column. The small radial extents and present yields precluded useful radial resolution, so a one-dimensional imager was developed. The imaging component is a 100-mm thick tungsten slit; a rolled-edge slit limits variations in the acceptance angle along the source. CR39 was chosen as a detector due to its negligible sensitivity to the bright x-ray environment in Z. A layer of high density poly-ethylene is used to enhance the sensitivity of CR39. We present data from fielding the instrument on Z, demonstrating reliable imaging and track densities consistent with diagnosed yields. For yields ∼3 × 1012, we obtain resolutions of ∼500 μm.

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A Path to Increased Performance in Magnetized Liner Inertial Fusion

Gomez, Matthew R.; Slutz, Stephen A.; Jennings, Christopher A.; Harvey-Thompson, Adam J.; Weis, Matthew R.; Lamppa, Derek C.; Hutsel, Brian T.; Ampleford, David J.; Awe, Thomas J.; Bliss, David E.; Chandler, Gordon A.; Geissel, Matthias; Hahn, Kelly; Hansen, Stephanie B.; Harding, Eric H.; Hess, Mark H.; Knapp, P.F.; Laity, George R.; Martin, Matthew R.; Nagayama, Taisuke; Rovang, Dean C.; Ruiz, Carlos L.; Savage, Mark E.; Schmit, Paul; Schwarz, Jens; Smith, Ian C.; Vesey, Roger A.; Yu, Edmund; Cuneo, Michael E.; Jones, Brent M.; Peterson, K.J.; Porter, John L.; Rochau, G.A.; Sinars, Daniel; Stygar, William A.

Abstract not provided.

Results 1–25 of 114
Results 1–25 of 114