scholarly journals Design of a distributed radiator target for inertial fusion driven from two sides with heavy ion beams

1998 ◽  
Vol 5 (5) ◽  
pp. 1895-1900 ◽  
Author(s):  
Max Tabak ◽  
Debra Callahan-Miller
Keyword(s):  
Heavy Ion ◽  
Ion Beams ◽  
Inertial Fusion ◽  
Two Sides

scholarly journals Design of a distributed radiator target for inertial fusion driven from two sides with heavy ion beams

1998 ◽  
Vol 38 (4) ◽  
pp. 509-513 ◽  
Author(s):  
M Tabak ◽  
D Callahan-Miller ◽  
D.D.-M Ho ◽  
G.B Zimmerman
Keyword(s):  
Heavy Ion ◽  
Ion Beams ◽  
Inertial Fusion ◽  
Two Sides

scholarly journals Control of fuel target implosion non-uniformity in heavy ion inertial fusion

2016 ◽  
Vol 34 (4) ◽  
pp. 729-734 ◽  
Author(s):  
T. Iinuma ◽  
T. Karino ◽  
S. Kondo ◽  
T. Kubo ◽  
H. Kato ◽  
...  
Keyword(s):  
Control Method ◽  
Heavy Ion ◽  
Ion Beams ◽  
Taylor Instability ◽  
Inertial Fusion ◽  
Laser Part ◽  
Rayleigh Taylor Instability ◽  
Original Concept

AbstractIn inertial fusion, one of scientific issues is to reduce an implosion non-uniformity of a spherical fuel target. The implosion non-uniformity is caused by several factors, including the driver beam illumination non-uniformity, the Rayleigh–Taylor instability (RTI) growth, etc. In this paper, we propose a new control method to reduce the implosion non-uniformity; the oscillating implosion acceleration δg(t) is created by pulsating and dephasing heavy-ion beams (HIBs) in heavy-ion inertial fusion (HIF). The δg(t) would reduce the RTI growth effectively. The original concept of the non-uniformity control in inertial fusion was proposed in [Laser Part. Beams (1993) 11, 757–768]. In this paper, it was found that the pulsating and dephasing HIBs illumination provide successfully the controlled δg(t) and that δg(t) induced by the pulsating HIBs reduces well the implosion non-uniformity. Consequently the pulsating HIBs improve a pellet gain remarkably in HIF.

scholarly journals Target implosion uniformity in heavy-ion fusion

2016 ◽  
Vol 34 (4) ◽  
pp. 735-741 ◽  
Author(s):  
T. Karino ◽  
S. Kawata ◽  
S. Kondo ◽  
T. Iinuma ◽  
T. Kubo ◽  
...  
Keyword(s):  
Growth Rate ◽  
Physical Quantity ◽  
Dynamic Instability ◽  
Heavy Ion ◽  
Ion Beams ◽  
Instability Growth Rate ◽  
Beam Axis ◽  
Inertial Fusion ◽  
Instability Growth ◽  
Heavy Ion Fusion

AbstractIn this paper, the robustness of the dynamic instability mitigation mechanism is first examined, and then the instability mitigation phenomenon is demonstrated in a deuterium–tritium (DT) fuel target implosion by wobbling heavy-ion beams (HIBs). The results presented here show that the mechanism of the dynamic instability mitigation is rather robust against changes in the phase, the amplitude and the wavelength of the wobbling perturbation applied. In general instability would emerge from the perturbation of the physical quantity. Normally the perturbation phase is unknown, so that the instability growth rate is discussed. However, if the perturbation phase is known, the instability growth can be controlled by a superposition of perturbations imposed actively: if the perturbation is induced by, for example, a driving beam axis oscillation or wobbling, the perturbation phase could be controlled and the instability growth is mitigated by the superposition of the growing perturbations. In this paper, we realize the superposition of the perturbation by the wobbling HIBs’ illumination onto a DT fuel target in heavy-ion inertial fusion (HIF). Our numerical fluid implosion simulations present that the implosion non-uniformity is mitigated successfully by the wobbling HIBs illumination in HIF.

Particle dynamics in a DTL for high intensity heavy ion beams for inertial fusion

1999 ◽  
Author(s):  
Giovanni Parisi ◽  
Horst Deitinghoff ◽  
Klaus Bongardt ◽  
Michael Pabst
Keyword(s):  
High Intensity ◽  
Heavy Ion ◽  
Particle Dynamics ◽  
Ion Beams ◽  
Inertial Fusion

Axial Observation of X-Ray Spectra from a Beam-Foil Source

1988 ◽  
Vol 102 ◽  
pp. 339-342
Author(s):  
J.M. Laming ◽  
J.D. Silver ◽  
R. Barnsley ◽  
J. Dunn ◽  
K.D. Evans ◽  
...  
Keyword(s):  
Spectral Resolution ◽  
Heavy Ion ◽  
Ion Beams ◽  
Beam Axis ◽  
Doppler Broadening ◽  
X Ray ◽  
Beam Foil

AbstractNew observations of x-ray spectra from foil-excited heavy ion beams are reported. By observing the target in a direction along the beam axis, an improvement in spectral resolution, δλ/λ, by about a factor of two is achieved, due to the reduced Doppler broadening in this geometry.

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