Using multiple secondary fusion products to evaluate fuel ρR, electron temperature, and mix in deuterium-filled implosions at the NIF | Zendy

H. G. Rinderknecht | Zendy; M. J. Rosenberg | Zendy; A. B. Zylstra | Zendy; B. Lahmann | Zendy; F.H. Séguin | Zendy; J. A. Frenje | Zendy; C. K. Li | Zendy; M. Gatu Johnson | Zendy; R. D. Petrasso | Zendy; L. Berzak Hopkins | Zendy; J. A. Caggiano | Zendy; L. Divol | Zendy; E. P. Hartouni | Zendy; R. Hatarik | Zendy; S. P. Hatchett | Zendy; S. Le Pape | Zendy; A. J. Mackin | Zendy; J. M. McNaney | Zendy; N. B. Meezan | Zendy; M. J. Moran | Zendy; Paul A. Bradley | Zendy; J. L. Kline | Zendy; Н. С. Крашенинникова | Zendy; G. A. Kyrala | Zendy; T. J. Murphy | Zendy; Mark J. Schmitt | Zendy; I. L. Tregillis | Zendy; S. H. Batha | Zendy; J. P. Knauer | Zendy; J. D. Kilkenny | Zendy

Open Access

Using multiple secondary fusion products to evaluate fuel ρR, electron temperature, and mix in deuterium-filled implosions at the NIF

Author(s) -

H. G. Rinderknecht,

M. J. Rosenberg,

A. B. Zylstra,

B. Lahmann,

F.H. Séguin,

J. A. Frenje,

C. K. Li,

M. Gatu Johnson,

R. D. Petrasso,

L. Berzak Hopkins,

J. A. Caggiano,

L. Divol,

E. P. Hartouni,

R. Hatarik,

S. P. Hatchett,

S. Le Pape,

A. J. Mackin,

J. M. McNaney,

N. B. Meezan,

M. J. Moran,

Paul A. Bradley,

J. L. Kline,

Н. С. Крашенинникова,

G. A. Kyrala,

T. J. Murphy,

Mark J. Schmitt,

I. L. Tregillis,

S. H. Batha,

J. P. Knauer,

J. D. Kilkenny

Publication year - 2015

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.4928382

Subject(s) - national ignition facility , inertial confinement fusion , deuterium , physics , nuclear physics , plasma , atomic physics , area density , fusion , shock (circulatory) , electron temperature , tritium , nuclear engineering , optics , medicine , philosophy , engineering , linguistics

In deuterium-filled inertial confinement fusion implosions, the secondary fusion processes D(3He,p)4He and D(T,n)4He occur, as the primary fusion products 3He and T react in flight with thermal deuterons. In implosions with moderate fuel areal density (∼5–100 mg/cm2), the secondary D-3He reaction saturates, while the D-T reaction does not, and the combined information from these secondary products is used to constrain both the areal density and either the plasma electron temperature or changes in the composition due to mix of shell material into the fuel. The underlying theory of this technique is developed and applied to three classes of implosions on the National Ignition Facility: direct-drive exploding pushers, indirect-drive 1-shock and 2-shock implosions, and polar direct-drive implosions. In the 1- and 2-shock implosions, the electron temperature is inferred to be 0.65 times and 0.33 times the burn-averaged ion temperature, respectively. The inferred mixed mass in the polar direct-drive implosions ...

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