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
1998 ◽  
Vol 5 (5) ◽  
pp. 1895-1900 ◽  
Author(s):  
Max Tabak ◽  
Debra Callahan-Miller

Author(s):  
C. Rodríguez-Tajes ◽  
J. Pancin ◽  
S. Damoy ◽  
T. Roger ◽  
M. Babo ◽  
...  

Author(s):  
Liang Lu ◽  
Toshiyuki Hattori ◽  
Noriyosu Hayashizaki ◽  
Takuya Ishibashi ◽  
Masahiro Okamura ◽  
...  

2016 ◽  
Vol 34 (4) ◽  
pp. 729-734 ◽  
Author(s):  
T. Iinuma ◽  
T. Karino ◽  
S. Kondo ◽  
T. Kubo ◽  
H. Kato ◽  
...  

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.


2016 ◽  
Vol 34 (4) ◽  
pp. 735-741 ◽  
Author(s):  
T. Karino ◽  
S. Kawata ◽  
S. Kondo ◽  
T. Iinuma ◽  
T. Kubo ◽  
...  

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.


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