25 research outputs found

    Estimation of Crystal Sample Structure by Means of Fast Electron Radiation

    Get PDF
    An analysis is made of the dependence of the characteristics of X-ray radiation arising during the passage of fast electrons through the crystal on the quality of the internal structure of the sampleyesBS

    Calculation of the X-ray reflectivity of b-class mosaic crystals via the Monte Carlo method

    Get PDF
    b-class mosaic crystals, including pyrolytic graphite, are widely used as neutron and X-ray monochromators in experimental physics and ensure a more intense yield of monochromatic radiation than do perfect crystalsye

    Influence of crystal mosaicity on the X-radiation characteristics observed at a small angle to the particle velocity direction

    Get PDF
    The experimentally measured yields of X-rays generated by 500-MeV electrons in oriented tungsten single crystals are analyzedye

    Influence of crystals mosaicity on observed characteristics of X-ray emission along the propagation velocity of fast electrons in thick tungsten crystals

    Get PDF
    The results of a set of experiments on X-ray emission yield of Ο‰ ∼ Ξ³Ο‰p energy, generated by 500MeV energy electrons in oriented tungsten single crystals are presented. The experiments were performed at Tomsk synchrotron using Crystal grating spectrometers based on mosaic crystals of pyrolytic graphite. It is shown that the measurement results are caused by the competition of two mechanisms: parametric X-ray emission along the particle velocity and bremsstrahlung diffraction in mosaic crystals of aΞ± group. A method for determining the characteristic bulk dimensions in mosaic crystals of aΞ± group is suggested

    Calculation of class-b mosaic crystals reflactivity by Monte Carlo techniqye

    Get PDF
    The technique is proposed and implemented to calculate the reflectivity of such crystals by Monte Carlo modeling, corrently considering the multiple reflections of photons inside the crystal and the geometry of experiment for random distribution of the mosaicyesBelgorod State Universit

    Calculation of class-b mosaic crystals reflectivity by Monte Carlo technique

    Get PDF
    Mosaic crystals of b-type, for example, pyrolytic graphite, is widely used in experimental physics as neutron and X-ray monochromators and provide a higher yield of monochromatic radiation than perfect ones. The technique is proposed and implemented to calculate the reflectivity of such crystals by Monte Carlo modeling, correctly considering the multiple reflections of photons inside the crystal and the geometry of experiment for random distribution of the mosaic

    X-Ray source with variable photons energy for medicine applications=Π˜ΡΡ‚ΠΎΡ‡Π½ΠΈΠΊ рСнтгСновского излучСния с пСрСстраиваСмой энСргиСй для мСдицинских Ρ†Π΅Π»Π΅ΠΉ

    No full text
    Анализ пСрспСктив создания источника рСнтгСновского излучСния с пСрСстраиваСмой энСргиСй Π½Π° основС элСктронного ускоритСля срСдних энСргий ΠΈ ΠΌΠΎΠ·Π°ΠΈΡ‡Π½Ρ‹Ρ… кристалловyesBS

    X-Ray source with variable photons energy for medicine applications=Π˜ΡΡ‚ΠΎΡ‡Π½ΠΈΠΊ рСнтгСновского излучСния с пСрСстраиваСмой энСргиСй для мСдицинских Ρ†Π΅Π»Π΅ΠΉ

    No full text
    yesBSUАнализ пСрспСктив создания источника рСнтгСновского излучСния с пСрСстраиваСмой энСргиСй Π½Π° основС элСктронного ускоритСля срСдних энСргий ΠΈ ΠΌΠΎΠ·Π°ΠΈΡ‡Π½Ρ‹Ρ… кристалло

    Estimation of Crystal Sample Structure by Means of Fast Electron Radiation

    No full text
    yesBSUАнализируСтся Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ‚ΡŒ характСристик рСнтгСновского излучСния, Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡŽΡ‰Π΅Π³ΠΎ ΠΏΡ€ΠΈ ΠΏΡ€ΠΎΡ…ΠΎΠΆΠ΄Π΅Π½ΠΈΠΈ Ρ‡Π΅Ρ€Π΅Π· кристалл быстрых элСктронов, ΠΎΡ‚ качСства Π²Π½ΡƒΡ‚Ρ€Π΅Π½Π½Π΅ΠΉ структуры ΠΎΠ±Ρ€Π°Π·Ρ†

    Tunable X-ray source based on mosaic cristals using for practical applications = ΠŸΠ΅Ρ€Π΅ΡΡ‚Ρ€Π°ΠΈΠ²Π°Π΅ΠΌΡ‹ΠΉ источник рСнтгСновского излучСния Π½Π° основС использования ΠΌΠΎΠ·Π°ΠΈΡ‡Π½Ρ‹Ρ… кристаллов для практичСских ΠΏΡ€ΠΈΠ»ΠΎΠΆΠ΅Π½ΠΈΠΉ

    No full text
    yesBSUVIII International Symposium on Radiation from Relativistic Electrons in Periodic Structures, Russian Federation, Moscow Region, Zvenigorod, 7-11 September, 2009Анализ пСрспСктив создания источника рСнтгСновского излучСния с пСрСстраиваСмой энСргиСй Π½Π° основС элСктронного ускоритСля срСдних энСргий ΠΈ ΠΎΡ€ΠΈΠ΅Π½Ρ‚ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… кристалло
    corecore