Analytical model of axial channeling for heavy ions

V. S. Malyshevskii; �. T. Shipatov

doi:10.1007/bf00889857

Analytical model of axial channeling for heavy ions

Soviet Physics Journal ◽

10.1007/bf00889857 ◽

1979 ◽

Vol 22 (3) ◽

pp. 255-259

Author(s):

V. S. Malyshevskii ◽

�. T. Shipatov

Keyword(s):

Analytical Model ◽

Heavy Ions ◽

Axial Channeling

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Ignition of high gain targets by entropy injection

Laser and Particle Beams ◽

10.1017/s0263034600181054 ◽

2000 ◽

Vol 18 (1) ◽

pp. 35-47 ◽

Cited By ~ 3

Author(s):

A. CARUSO ◽

C. STRANGIO

Keyword(s):

Analytical Model ◽

Heavy Ions ◽

High Gain ◽

Fast Ignition ◽

Numerical Calculations ◽

Simple Analytical Model

We considered an ignition strategy based on energy injection in the final stages of the target implosion, but well before stagnation. The injected energy is used to set on a high adiabat the small portion of the fuel destined to become the ignition spark. Most of the energy needed to form the spark is provided by the work of the imploding target on the spark fuel. This approach is first introduced by a simple analytical model and then illustrated by 2D numerical calculations, in which the ignition of imploding cylinders by heavy ions is simulated. Different implosion designs and burn modes are presented and discussed. When compared with the standard central self-generated spark, or the fast ignition approaches, the ignition by entropy injection is potentially promising of some distinct advantages.

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An analytical model for calculating microdosimetric distributions from heavy ions in nanometer site targets

Radiation Protection Dosimetry ◽

10.1093/rpd/ncl473 ◽

2006 ◽

Vol 122 (1-4) ◽

pp. 36-40 ◽

Cited By ~ 3

Author(s):

L. Czopyk ◽

P. Olko

Keyword(s):

Analytical Model ◽

Heavy Ions

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Specimen Preparation of Near Surface Ion Irradiated Samples

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117820 ◽

1985 ◽

Vol 43 ◽

pp. 170-171

Author(s):

K. F. Russell ◽

L. L. Horton

Keyword(s):

Radiation Damage ◽

Heavy Ions ◽

Target Material ◽

Metal Alloys ◽

Specimen Surface ◽

Specimen Preparation ◽

Particle Accelerators ◽

Near Surface ◽

Graaff Accelerator ◽

Van De Graaff

Beams of heavy ions from particle accelerators are used to produce radiation damage in metal alloys. The damaged layer extends several microns below the surface of the specimen with the maximum damage and depth dependent upon the energy of the ions, type of ions, and target material. Using 4 MeV heavy ions from a Van de Graaff accelerator causes peak damage approximately 1 μm below the specimen surface. To study this area, it is necessary to remove a thickness of approximately 1 μm of damaged metal from the surface (referred to as “sectioning“) and to electropolish this region to electron transparency from the unirradiated surface (referred to as “backthinning“). We have developed electropolishing techniques to obtain electron transparent regions at any depth below the surface of a standard TEM disk. These techniques may be applied wherever TEM information is needed at a specific subsurface position.

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