[en] A variant of the flashlamp for NIF was developed on the base of the experience of manufacture and application of high-power flashlamps in Russia. Features of flashlamp design as well as first test results of the experimental samples are presented

No abstract available

[en] Three portable flash x-ray equipments are described, and applications such as jet and high explosive studies, bullet impact and lead casting experiments are given as well as techniques for triggering and protection of equipment and film

[en] The spectral efficiency of flashlamps is considered as a function of xenon gas pressure, discharge current, and flashlamp bore. A detailed discussion is given concerning the optimum choice of flashlamp bore

[en] We present Stark widths and shifts of the Hα line measured in a flash tube plasma in the electron density range N_e=(1-4)x10¹⁸ cm^-3 and the temperature range T=1-2 eV. The plasma parameters were measured independently of the width and shift of the Hα line. We found that the Hα widths and shifts, measured at two different plasma sources, producing 'warm dense matter' of similar parameters - the underwater discharge and the flash tube - are consistent with each other. Our experimental results are in a good agreement with Oks' theory of Stark widths and shifts. As a conventional reference, we also compared our experimental results with Griem's theory of Stark widths and shifts. For Griem's shifts we found discrepancies of up to 76%. Griem's widths lie mostly within the experimental error bars; however, their rms deviation from the most probable experimental widths is up to 44% greater than for Oks' widths. Therefore our experiment provides further proof of some new warm-dense-matter effects incorporated in Oks' theory, the most important of which is the acceleration of the perturbing electrons by the ion field

[en] The power output of a conventional flashlamp pumped dye laser is increased by an order of magnitude or more by initiating a low-energy discharge through the flashlamp just ahead of the main discharge. Some theory and circuit details are given together with the experimental results. (U.S.)

[en] The flash tube hodoscope was an essential element of the HEAO-3 Copenhagen-Saclay instrument: track information is needed to know the direction of incidence of each particle in a geographic coordinate system, from which the precise geomagnetic cut off can be computed for each observed particle. In addition trajectory reconstruction of the particles is needed to correct the signals from the counters for pathlength and non uniformity variations and help select good events from background. In this paper, we present the main characteristics of the hodoscope and its flight behaviour, and we try to compare its performances with those attained in space by other determining devices

[en] A programmable logic controller (PLC) is employed as the machine local control unit in the prototype kicker modulator. Remote control, safety interlock and real-time communication with the host computer are achieved by the PLC. Strong electromagnetic interference, which is caused by the big pulse current in the modulator, is restrained. It makes the operation of the modulator more stable and reliable

No abstract available

No abstract available