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Volumn 13, Issue 8, 2006, Pages

Measured dependence of nuclear burn region size on implosion parameters in inertial confinement fusion experiments

Author keywords

[No Author keywords available]

Indexed keywords

INERTIAL-CONFINEMENT-FUSION IMPLOSIONS; LASER ENERGY; NUCLEAR BURN REGION; SHELL COMPOSITION;

EID: 33748323376     PISSN: 1070664X     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2172932     Document Type: Article
Times cited : (14)

References (52)
  • 15
    • 84858931659 scopus 로고    scopus 로고
    • Using target shimming to achieve burn symmetry with asymmetric drive in ICF implosions
    • to be submitted
    • F. H. Séguin, C. K. Li, J. L. DeCiantis et al., "Using target shimming to achieve burn symmetry with asymmetric drive in ICF implosions," to be submitted to Phys. Rev. Lett.
    • Phys. Rev. Lett.
    • Séguin, F.H.1    Li, C.K.2    DeCiantis, J.L.3
  • 43
    • 33748325007 scopus 로고    scopus 로고
    • note
    • Calculations showed insignificant image broadening associated with proton scattering in the capsule, aperture, and detector filters, while experiments showed no indication of different results with different aperture size or magnification. Neither experiments nor simulations revealed any serious field effects (Ref. 12).
  • 45
    • 33748304663 scopus 로고    scopus 로고
    • note
    • burn (Ref. 12) and five of ρR for each implosion. When the mean value is calculated for an implosion type, all of these measurements are weighted equally.
  • 47
    • 33748293270 scopus 로고    scopus 로고
    • note
    • 3He gas implosions.
  • 49
    • 33748296551 scopus 로고    scopus 로고
    • note
    • d in Eq. (A5) can be found by calculating the integrals for a circular disk with uniform surface brightness and keeping the lowest-order terms. Since any radial profile of surface brightness can be made up from a supetposition of disks, the result is independent of radial profile. This is a better correction than that shown in Eq. (7) of Ref. 11, which was found empirically. In any case, the correction is too small to be important for the data considered here.
  • 52
    • 33748296018 scopus 로고    scopus 로고
    • note
    • d is the radius on the detector corresponding to the center of the penumbra. In principle it is known in advance from the dimensions of the imaging system, but it must be known very accurately and including it as a fit parameter allows for the possibility of small errors in camera positioning. Two more parameters that need to be known are the coordinates of the center of the penumbral image. This is found by doing a simplified version of the analysis described in the text, but varying the assumed center coordinates and finding the values that give the smallest burn radius (since any displacement from the true center broadens the average penumbra and the inferred burn radius).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.