A novel charged-particle diagnostic for compression in inertial confinement fusion targets

2000 ◽  
Vol 7 (5) ◽  
pp. 1531-1538 ◽  
Author(s):  
P. B. Radha ◽  
S. Skupsky ◽  
R. D. Petrasso ◽  
J. M. Soures
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
Confinement Fusion ◽  
Particle Diagnostic

Five‐frame, x‐ray camera for charged particle, inertial confinement fusion studies

1980 ◽  
Vol 51 (3) ◽  
pp. 292-298 ◽  
Author(s):  
D. L. Fehl ◽  
J. Chang ◽  
G. W. Kuswa ◽  
C. W. Mendel
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Inertial Confinement ◽  
X Ray ◽  
Confinement Fusion

Generalized expressions for momentum and energy losses of charged particle beams in non-Maxwellian multi-species plasmas and spherical symmetry

1982 ◽  
Vol 28 (3) ◽  
pp. 445-457
Author(s):  
S. Cuperman ◽  
I. Weiss ◽  
M. Dryer
Keyword(s):  
Charged Particle ◽  
Inertial Confinement Fusion ◽  
Distribution Functions ◽  
Inertial Confinement ◽  
Particle Beams ◽  
Thermal Anisotropy ◽  
Charged Particle Beams ◽  
Confinement Fusion ◽  
Fast Charged Particle

Generalized expressions for the rates of change of the momentum, energy and thermal anisotropy of fast, charged particle beams interacting with non-Maxwellian multi-species plasmas are derived. The results hold for the case of spherically symmetric systems and, therefore, are relevant for inertial confinement fusion schemes driven by fast charged particle beams and for various astro-physical situations. The calculations are based on the Fokker-Planckformalism. The effects connected with the departures from the Maxwellian distribution functions are expressed in terms of their fifth moments, , which reflect the role of the non-Maxwellian tails. The familiar stopping power expression holding for Maxwellian targets is recovered as a particular case.

A nonlinear theory of charged-particle stopping in non-ideal plasmas

1997 ◽  
Vol 57 (2) ◽  
pp. 373-385 ◽  
Author(s):  
YU. S. SAYASOV
Keyword(s):  
Charged Particle ◽  
Heavy Ions ◽  
Inertial Confinement Fusion ◽  
Charged Particles ◽  
Stopping Power ◽  
Fermi Velocity ◽  
Inertial Confinement ◽  
Projectile Velocity ◽  
Quantum Plasmas ◽  
Confinement Fusion

The stopping power S=S1+SB for charged particles in non-ideal degenerate quantum plasmas is calculated with the help of the dielectric formalism in an approximation corresponding to taking account of the Barkas effect (the term SB; the term S1 corresponds to the Bethe formula). It is found that for a high projectile velocity vp>vF (where vF is the Fermi velocity) in non-ideal plasmas, SB∝e3pv−3p (where ep is the charge of the projectile), the well-known law for the Barkas effect, SB∝e3pv−5p being valid only for ideal plasmas. This relation explains a number of experiments on stopping of different charged particles (protons, muons and heavy ions) in metals without the introduction of fitted parameters. The possibility of extending of this theory to gaseous non-ideal plasmas arising in inertial-confinement fusion (ICF) experiments is also briefly discussed.

Analysis of electroless nickel thin films

1991 ◽  
Vol 49 ◽  
pp. 510-511 ◽  
Author(s):  
C. W. Price ◽  
E. F. Lindsey
Keyword(s):  
Thin Films ◽  
Inertial Confinement Fusion ◽  
Electroless Nickel ◽  
Inertial Confinement ◽  
Plating Bath ◽  
X Ray ◽  
Nickel Thin Films ◽  
Nickel Deposits ◽  
Confinement Fusion ◽  
Thickness Measurements

Thickness measurements of thin films are performed by both energy-dispersive x-ray spectroscopy (EDS) and x-ray fluorescence (XRF). XRF can measure thicker films than EDS, and XRF measurements also have somewhat greater precision than EDS measurements. However, small components with curved or irregular shapes that are used for various applications in the the Inertial Confinement Fusion program at LLNL present geometrical problems that are not conducive to XRF analyses but may have only a minimal effect on EDS analyses. This work describes the development of an EDS technique to measure the thickness of electroless nickel deposits on gold substrates. Although elaborate correction techniques have been developed for thin-film measurements by x-ray analysis, the thickness of electroless nickel films can be dependent on the plating bath used. Therefore, standard calibration curves were established by correlating EDS data with thickness measurements that were obtained by contact profilometry.

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