Generalized measurable ignition criterion for inertial confinement fusion

Py Chang; R. Betti; B. K. Spears; K. S. Anderson; J. Edwards; M. Fatenejad; J. D. Lindl; R. L. McCrory; R. Nora; D. Shvarts

doi:10.1103/PhysRevLett.104.135002

Generalized measurable ignition criterion for inertial confinement fusion

Py Chang, R. Betti, B. K. Spears, K. S. Anderson, J. Edwards, M. Fatenejad, J. D. Lindl, R. L. McCrory, R. Nora, D. Shvarts

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

75 Citations (Scopus)

Abstract

A multidimensional measurable criterion for central ignition of inertial-confinement-fusion capsules is derived. The criterion accounts for the effects of implosion nonuniformities and depends on three measurable parameters: the neutron-averaged total areal density (ρRntot), the ion temperature (Tn), and the yield over clean (YOC=ratio of the measured neutron yield to the predicted one-dimensional yield). The YOC measures the implosion uniformity. The criterion can be approximated by χ=(ρRntot)0.8(Tn/4.7)1.7YOCμ>1 (where ρR is in gcm^-2, T in keV, and μ0.4-0.5) and can be used to assess the performance of cryogenic implosions on the NIF and OMEGA. Cryogenic implosions on OMEGA have achieved χ∼0.02-0.03.

Original language	English
Article number	135002
Journal	Physical review letters
Volume	104
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.104.135002
Publication status	Published - 2010 Apr 1

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.104.135002

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title = "Generalized measurable ignition criterion for inertial confinement fusion",

abstract = "A multidimensional measurable criterion for central ignition of inertial-confinement-fusion capsules is derived. The criterion accounts for the effects of implosion nonuniformities and depends on three measurable parameters: the neutron-averaged total areal density (ρRntot), the ion temperature (Tn), and the yield over clean (YOC=ratio of the measured neutron yield to the predicted one-dimensional yield). The YOC measures the implosion uniformity. The criterion can be approximated by χ=(ρRntot)0.8(Tn/4.7)1.7YOCμ>1 (where ρR is in gcm-2, T in keV, and μ0.4-0.5) and can be used to assess the performance of cryogenic implosions on the NIF and OMEGA. Cryogenic implosions on OMEGA have achieved χ∼0.02-0.03.",

author = "Py Chang and R. Betti and Spears, {B. K.} and Anderson, {K. S.} and J. Edwards and M. Fatenejad and Lindl, {J. D.} and McCrory, {R. L.} and R. Nora and D. Shvarts",

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doi = "10.1103/PhysRevLett.104.135002",

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T1 - Generalized measurable ignition criterion for inertial confinement fusion

AU - Chang, Py

AU - Betti, R.

AU - Spears, B. K.

AU - Anderson, K. S.

AU - Edwards, J.

AU - Fatenejad, M.

AU - Lindl, J. D.

AU - McCrory, R. L.

AU - Nora, R.

AU - Shvarts, D.

PY - 2010/4/1

Y1 - 2010/4/1

N2 - A multidimensional measurable criterion for central ignition of inertial-confinement-fusion capsules is derived. The criterion accounts for the effects of implosion nonuniformities and depends on three measurable parameters: the neutron-averaged total areal density (ρRntot), the ion temperature (Tn), and the yield over clean (YOC=ratio of the measured neutron yield to the predicted one-dimensional yield). The YOC measures the implosion uniformity. The criterion can be approximated by χ=(ρRntot)0.8(Tn/4.7)1.7YOCμ>1 (where ρR is in gcm-2, T in keV, and μ0.4-0.5) and can be used to assess the performance of cryogenic implosions on the NIF and OMEGA. Cryogenic implosions on OMEGA have achieved χ∼0.02-0.03.

AB - A multidimensional measurable criterion for central ignition of inertial-confinement-fusion capsules is derived. The criterion accounts for the effects of implosion nonuniformities and depends on three measurable parameters: the neutron-averaged total areal density (ρRntot), the ion temperature (Tn), and the yield over clean (YOC=ratio of the measured neutron yield to the predicted one-dimensional yield). The YOC measures the implosion uniformity. The criterion can be approximated by χ=(ρRntot)0.8(Tn/4.7)1.7YOCμ>1 (where ρR is in gcm-2, T in keV, and μ0.4-0.5) and can be used to assess the performance of cryogenic implosions on the NIF and OMEGA. Cryogenic implosions on OMEGA have achieved χ∼0.02-0.03.

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Generalized measurable ignition criterion for inertial confinement fusion

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