Radiation transport effects in heavy‐ion beam–target interaction studies: Measurement of target opacity and beam conversion efficiency

1989 ◽  
Vol 1 (7) ◽  
pp. 1526-1538 ◽  
Author(s):  
N. A. Tahir ◽  
R. C. Arnold
Keyword(s):  
Conversion Efficiency ◽  
Radiation Transport ◽  
Ion Beam ◽  
Heavy Ion ◽  
Target Interaction ◽  
Interaction Studies ◽  
Transport Effects ◽  
Heavy Ion Beam

scholarly journals On thermonuclear burn propagation in a pre-compressed cylindrical DT target ignited by a heavy ion beam pulse

2013 ◽  
Vol 32 (1) ◽  
pp. 41-47 ◽  
Author(s):  
R. Ramis ◽  
J. Meyer-Ter-Vehn
Keyword(s):  
Wave Propagation ◽  
Radiation Transport ◽  
Ion Beam ◽  
Heavy Ion ◽  
Radiation Hydrodynamics ◽  
Dominant Mechanism ◽  
Velocity Scale ◽  
Density Radius ◽  
Heavy Ion Beam ◽  
Thermonuclear Ignition

AbstractThermonuclear ignition and burn propagation in pre-compressed cylindrical deuterium-tritium (DT) targets is studied by two-dimensional radiation hydrodynamics simulations using the code MULTI-2D. Special attention is paid to self-sustained steady burn wave propagation. Peak temperatures and burn wave velocity scale with the density-radius product of the fuel, and wave propagation is obtained for (ρR)DT ≥ 0.45 g/cm2. Radiation transport is identified as the dominant mechanism to drive the wave. Details of ignition by a heavy ion beam pulse are also presented. Limitations in the physics basis of the simulations are pointed out. The results are compared with previous publications found in the literature.

scholarly journals Studies on radiation generation and symmetrization in two-side irradiated heavy-ion beam Hohlraums

1998 ◽  
Vol 16 (3) ◽  
pp. 525-532 ◽  
Author(s):  
V.F. Ermolovich ◽  
G.N. Remizov ◽  
Yu. A. Romanov ◽  
N.A. Ryabikina ◽  
R.M. Shagaliev ◽  
...  
Keyword(s):  
Neutron Yield ◽  
Radiation Transport ◽  
Ion Beam ◽  
Heavy Ion ◽  
View Factor ◽  
Radiation Generation ◽  
Accurate Treatment ◽  
Favorable Case ◽  
Radiation Shields ◽  
Heavy Ion Beam

The properties of heavy-ion induced fusion targets with two-sided illumination and with the converters placed completely inside the Hohlraum have been investigated using integrated simulations based on the SATURN and MIMOZA code packages in order to check the results obtained with the view-factor method in previous work, which is briefly reviewed. Separate converter simulations show the importance of an accurate treatment of radiation transport but also demonstrate that a converter efficiency of 40–80% can be achieved easily depending on the detailed converter material and geometry. For the complete target, a gas fill is shown to be necessary, and it turned out to be very important to allow some of the radiation shields to become partially transparent during the evolution. In the most favorable case, an asymmetry in the temperature on the capsule of about 5% was achieved, leading to a reduction of the neutron yield by a factor of 7 compared to an ideally symmetric situation.

Ballooning structure in density fluctuations observed with the 2 MeV heavy ion beam probe on the TEXT-U tokamak

1995 ◽  
Author(s):  
A. Fujisawa ◽  
A. Ouroua ◽  
J.W. Heard ◽  
T.P. Crowley ◽  
P.M. Schoch ◽  
...  
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Density Fluctuations ◽  
Heavy Ion Beam ◽  
Heavy Ion Beam Probe

scholarly journals Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

1997 ◽  
Vol 4 (5) ◽  
pp. 1357-1361 ◽  
Author(s):  
A. Fujisawa ◽  
H. Iguchi ◽  
S. Lee ◽  
T. P. Crowley ◽  
Y. Hamada ◽  
...  
Keyword(s):  
Direct Observation ◽  
Ion Beam ◽  
Heavy Ion ◽  
Heavy Ion Beam ◽  
Heavy Ion Beam Probe

A Heavy-ion Beam Monitor Based on 3D NAND Flash Memories

2021 ◽  
pp. 1-1
Author(s):  
S. Gerardin ◽  
M. Bagatin ◽  
A. Paccagnella ◽  
S. Beltrami ◽  
A. Costantino ◽  
...  
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Nand Flash ◽  
Flash Memories ◽  
Beam Monitor ◽  
Heavy Ion Beam

Electron temperature measurements with heavy ion beam probes

1985 ◽  
Vol 56 (5) ◽  
pp. 1044-1046 ◽  
Author(s):  
P. M. Schoch ◽  
J. R. Goyer ◽  
L. Solensten ◽  
J. D. Michael ◽  
E. Saravia ◽  
...  
Keyword(s):  
Electron Temperature ◽  
Ion Beam ◽  
Heavy Ion ◽  
Temperature Measurements ◽  
Heavy Ion Beam

Studies of Heavy Ion Beam Transport in a Magnetic Quadrupole Channel

1983 ◽  
Vol 30 (4) ◽  
pp. 2543-2545 ◽  
Author(s):  
J. Klabunde ◽  
M. Reiser ◽  
A. Schonlein ◽  
P. Spadtke ◽  
J. Struckmeier
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Beam Transport ◽  
Magnetic Quadrupole ◽  
Heavy Ion Beam
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