Analysis of the interaction of short-pulse high-fluence radiation with targets

Lawrence, R. J.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p1185
Academic Journal
We generally use large-scale hydrocodes to study the dynamic response of targets to high-fluence pulsed radiation loads. However, for many applications where the desired solution does not require a detailed specification of pressure- or velocity-time histories, there are simple analytic approaches that can yield surprisingly accurate results. Examples include determining either the final velocity of a radiation-driven flying plate or the impulse delivered to a structural element. These methods are all based on relatively straightforward use of conservation of mass and momentum, but they typically need one scaling-law parameter. In this context, short pulse means short compared to the characteristic time of the desired response, which allows for the phenomena to be essentially uncoupled. High fluence means that the input energy is great enough to yield vaporization or blowoff of one or more portions of the configuration. We discuss some of these methods, give examples, and suggest limitations and criteria for their use.


Related Articles

  • Force Variability in Isometric Responses. Newell, K. M.; Canton, Les G. // Journal of Experimental Psychology. Human Perception & Performan;Feb88, Vol. 14 Issue 1, p37 

    Repeated engagements in the same activity inevitably lead to variability in the movements produced even if the goal of the act is satisfactorily accomplished on each trial. In activities such as archery and rifle shooting, the variability of response outcome is, in effect, taken directly as an...

  • INFLUÊNCIA DE DIFERENTES SUPERFÍCIES E DO CALÇADO NA FORÇA DE REAÇÃO DO SOLO NA DEMONSTRAÇÃO DE EXERCÍCIOS DE HIDROGINÁSTICA. Teixeira, C. S.; Pereira, É. F.; Lopes, L. F. D.; Mota, C. B.; Israel, V. L. // Revista Brasileira de Biomecânica;May2009, Vol. 10 Issue 18, following p68 

    Objective: This study aimed to verify the ground reaction force during the demonstration of four exercises in different surfaces with individuals wearing and not wearing tennis. Material and Methods: Fifteen female teachers of water aerobics that have at least six months of practice were...

  • Beam characteristics of short-pulse radiation with electromagnetic missile effect. Wang, Gang; Wang, Wen Bing; Chang Hong Liang // Journal of Applied Physics;5/15/1998, Vol. 83 Issue 10, p5040 

    Provides information on the investigation of the beam characteristics of short-pulse radiation as found in some high-power pulsed radiation systems. Indepth look at the off-axis energy density in short-pulse radiation; Effects of source parameters on beam characteristics; Conclusion reached on...

  • Correction.  // Bird Watcher's Digest;May/Jun2012, Vol. 34 Issue 5, p10 

    A correction to the article "Fulfilling an Impulse," that was published in the March/April 2012 issue is presented.

  • Acoustooptical processor for radio signals with discrete frequency modulation. Esepkina, N. A.; Lavrov, A. P.; Dmitriev, S. V. // Technical Physics Letters;Jan97, Vol. 23 Issue 1, p54 

    A study is made of a processor for pulsed radio signals with discrete frequency modulation, where the frequency varies discontinuously within a pulse and takes on N different values. The spectral components are separated with an acoustooptic spectrum analyzer whose spectral plane is imaged onto...

  • Corona-preionized nitrogen laser with variable pulse width. Hariri, A.; Tarkashvand, M.; Karami, A. // Review of Scientific Instruments;May90, Vol. 61 Issue 5, p1408 

    A simple method of producing pulsed coherent radiation at 337.1 nm with variable pulse durations of 2.0–3.5 ns using a small transversely excited N2 laser is described. For laser operation in a moderately broad range of gas pressure (up to 1 atm), a weak surface corona discharge has been...

  • Pulsed Microwave Radiator for the Band System λ = 175 nm ArCl(B–X)/236 nm XeCl(D–X)/258 nm Cl[sub 2][sup *]/308 nm XeCl(B–X). Shuaibov, A. K. // Technical Physics Letters;May2000, Vol. 26 Issue 5, p357 

    Parameters of a multiwave radiator pumped with transverse volume discharge in an Ar-Xe-Cl[sub 2] mixture at a pressure of P = 5-30 kPa were optimized. It is shown that, at a partial xenon pressure in the mixture below 0.4 kPa, the discharge may serve a multiwave radiation source operating on the...

  • Influence of pulsed laser radiation on the real structure of CdTe single crystals. Shul’pina, I. L; Zelenina, N. K.; Matveev, O. A. // Physics of the Solid State;Jan98, Vol. 40 Issue 1, p59 

    Back-reflection x-ray diffraction topography is used the measure the real structure of the surface layer of CdTe single crystals. It is found that the structural changes depend mainly on the laser power, on the presence of a doping impurity, and on the orientation and profile of the sample...

  • Dead time correction of time distribution measurements. Esposito, F.; Spinelli, N.; Velotta, R.; Berardi, V. // Review of Scientific Instruments;Nov91, Vol. 62 Issue 11, p2822 

    We report in this article an analysis of the distortion of the time distribution due to the dead time of the detection chain. The special case of distributions coming from a pulsed source is considered arid a relatively simple method for the reconstruction of the true time distribution is given....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics