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  • 1
    ISSN: 0392-6737
    Keywords: Excimer lasers ; Ultraviolet spectra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto I coefficienti di guadagno a piccolo segnale e di assorbimento di un laser a eccimero XeCl, preionizzato a raggi X, sono stati misurati sia in funzione del tempo che della lunghezza d'onda. Inoltre sono stati ottenuti due valori per l'intensità di saturazione usando l'analisi di Rigrod sull'evoluzione dell'intensità fotonica all'interno della cavità e misure di guadagno in condizioni di saturazione.
    Abstract: Резюме Измеряются усиление малых сигналов и коэффициенты поглощения рентгеновского, предионизонного XeCl лазера с высокой однородностью. С высоким разрешением одновременно определяются временная эволюция и зависимость от длины волны. Получаются две различные оценки интенсивности насьшения, используя анализ внутриполостной интенсивности и измерения усиления.
    Notes: Summary The small signal gain and absorption coefficients of a high uniformity, X-ray preionized XeCl laser have been measured. Their time evolution and wavelength dependence have been simultaneously detected with high resolution. Two distinct estimates of the saturation intensity were obtained by means of a Rigrod-type analysis of the intracavity intensity and by using saturated gain measurements.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 495-507 
    ISSN: 0392-6737
    Keywords: Electrical phenomena in gases ; Other laser system operation parameters (e.g. efficiency, lifetime, reliability, performance) ; Excimer lasers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Some limitation problems for gas discharge excimer lasers, when scaled to a high pulsed energy output with high repetition rate are discussed. As an example, we present some experimental results obtained with an X-ray preionized (10×10×100) cm3 active volume, low-repetition-rate-operated gas discharge XeCl laser system.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 13 (1991), S. 1387-1398 
    ISSN: 0392-6737
    Keywords: Excimer lasers ; Electrical phenomena in gases ; Electric discharges
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Some performances of an excimer discharge at the formative stage are calculated and compared to the experimental results obtained in a XeCl* laser device with a pin cathode without external preionization. We present a simplified discharge model for exploring the process of the preionization generated by the coronas in the cathode pin region.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0392-6737
    Keywords: thermodynamics of plasmas ; Ionizing radiations (ultraviolet, X-rays, γ-rays, ions, electrons, positrons, neutrons, and mesons, etc) ; Biophysical instrumentation and techniques ; X-ray spectra ; PACS 42.55Gp ; Excimer lasers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary A large-aperture, long-pulse XeCl excimer laser has been used to generate a soft-X-ray plasma source. Several laser optical configurations have been employed to optimise X-ray emission, including positive-branch unstable resonators and injection by seeding the gain region of the laser with a small commercial excimer laser, resulting in power densities in the range 1012–1014 W cm−2. The characteristics of the plasma source for each different laser configuration and for different target materials are investigated. The most suitable source conditions (spectral energy distribution, time duration, etc.) for specific applications are discussed.
    Type of Medium: Electronic Resource
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