نتایج جستجو برای: projectile

تعداد نتایج: 3282  

1998
F. M. Nunes R. Shyam I. J. Thompson

Coulomb Dissociation provides an alternative method for determining the radiative capture cross sections at astrophysically relevant low relative energies. For the breakup of 8 B on 58 Ni, we calculate the total Coulomb Dissociation cross section and the angular distribution for E1, E2 and M1. Our calculations are performed first within the standard first order semiclassical theory of Coulomb E...

2003
D H Jakubaßa-Amundsen

The capture of a target electron to the projectile continuum with simultaneous photon emission, known as radiative ionization (RI), is investigated theoretically for fast, highly charged projectiles colliding with light target atoms. Based on the impulse approximation in its post form, the features of radiative ionization are studied and contrasted with the related processes of radiative electr...

2012
W. T. SCOTT

Two models for describing the operation of a magnetic travelling wave accelerator, the transmission line model and the lumped parameter model, are analyzed. For both cases the current distribution and the magnetic field are calculated. It is shown that the transmission line model can be obtained as the limiting case of the lumped parameter model. It is then assumed that a superconducting soleno...

2011
Weijie Wang Yiyong Li

In the paper, an engineering model for the impact breakup of the space target is studied based on the thin plate. The average fragment size model for the impact breakup of the thin plate is established depending on the strain rate, according as Poisson statistic fragments are discrete and distribution model is figured out. On the foundation of the constitution analysis for the target and projec...

Journal: :Military Technical Collection 2021

2001
V. V. Riabov Daniel Webster I. V. Yegorov D. V. Ivanov H. H. Legner

The flow structure about a segmented projectile in hypersonic turbulent flow has been studied. The Reynoldsaveraged Navier-Stokes equations were solved numerically by application of the implicit monotonized scheme of second-order accuracy, the modified Newton's method, and the Christoffel-Schwarz grid-transformation technique. A strong interference effect has been found. The effect can be chara...

2001
Per A Amundsen

We have calculated the Is-Is charge transfer probability for large projectile scattering angles in asymmetric ion-atom collisions, using the strong-potential Born approximation and including the effect of recoil on the projectile states non-perturbatively. A significant angular dependence is found. Numerical results for Is-Is capture in 0.320 MeV proton impact on C and Ne are presented, showing...

1999
J. A. Christley J. A. Tostevin

Optical limit Glauber theory calculations of reaction cross sections, used to deduce nuclear sizes from high energy data, are studied in the case of a deformed projectile ~or target!. We show that a previously applied formula, used to adjust the root-mean-squared radius deduced assuming spherical projectiles, is consistent with results which treat the projectile deformation explicitly within th...

Journal: :The Journal of trauma 1996
M L Fackler

Shotguns are usually used to fire multiple pellets; however, they are capable of firing a single projectile in the form of a slug. Although rare, shotgun slug injuries are severe, producing wounds comparable to those inflicted by high-velocity weapons with the potential for even more tissue destruction because of the slug's size and mass. We report the first survivor of a close range shotgun sl...

1997
D. G. Madland

Two existing global medium-energy nucleon-nucleus phenomenological optical model potentials are described and compared with experiment and with each other. The first of these employs a Dirac approach (second-order reduction) that is global in projectile energy and projectile isospin and applies to the target nucleus 208 Pb. Here the standard S-V (isoscalar-scalar, isoscalar-vector) model has be...

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