TITLE

Charged-particle spectroscopy for diagnosing shock ρR and strength in NIF implosions

AUTHOR(S)
Zylstra, A. B.; Frenje, J. A.; Séguin, F. H.; Rosenberg, M. J.; Rinderknecht, H. G.; Johnson, M. Gatu; Casey, D. T.; Sinenian, N.; Manuel, M. J.-E.; Waugh, C. J.; Sio, H. W.; Li, C. K.; Petrasso, R. D.; Friedrich, S.; Knittel, K.; Bionta, R.; McKernan, M.; Callahan, D.; Collins, G. W.; Dewald, E.
PUB. DATE
October 2012
SOURCE
Review of Scientific Instruments;Oct2012, Vol. 83 Issue 10, p10D901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The compact Wedge Range Filter (WRF) proton spectrometer was developed for OMEGA and transferred to the National Ignition Facility (NIF) as a National Ignition Campaign diagnostic. The WRF measures the spectrum of protons from D-3He reactions in tuning-campaign implosions containing D and 3He gas; in this work we report on the first proton spectroscopy measurement on the NIF using WRFs. The energy downshift of the 14.7-MeV proton is directly related to the total ρR through the plasma stopping power. Additionally, the shock proton yield is measured, which is a metric of the final merged shock strength.
ACCESSION #
82964790

 

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