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Showing 1 to 8 of 8 for “"x-ray generation"”.
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Laser-Matter Interactions at Extreme Irradiance: X-ray Generation and Relativistic Channelling
… been employed to investigate laser-produced X-rays and relativistic channelling. These lasers produce short pulses, of the order of 50 fs, with energies ranging from 1 mJ to 1 J. Thus, the peak powers reach several terawatts and with the most powerful laser system the peak irradiance exceeds …
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X-Ray Generation by Mev Electrons in Silicon: Temperature, Tilt and Thickness Dependence
… target, sharp peaks are observed in the x-ray spectrum generated. One type of radiation, called coherent bremsstrahlung, results from coherent electron scattering by atoms arranged on the crystal lattice. The other type of radiation is channeling radiation. The electrons channeling near …
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X-ray generation by MeV electrons in silicon: Temperature, tilt and thickness dependence
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-16T14:05:29Z No. of bitstreams: 1 1982_kozlowski.pdf: 1872877 bytes, checksum: 090763a400cc816d2a1cdf9a1bbe79bb (MD5)
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Development of optical field emitter arrays
… and spectroscopy; and as electron sources for X-ray generation. Recently proposed intense, coherent, and compact X-ray sources require low emittance, high brightness and short duration electron bunches that form a periodic pattern in the transverse plane. This thesis theoretically developed …
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Development of a flat-panel x-ray source
<p>"A novel flat-panel transmission type X-ray source was developed for both medical and industrial use. Depending on the geometry of the given situation, the flat-panel X-ray source could be used in tomography, radiography or tomosynthesis. Furthermore, the unit could be used as a portable X-ray …
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Theory of terahertz generation by optical rectification
… amenable for electron acceleration, coherent X-ray generation and non-linear spectroscopy. Intra-pulse difference frequency generation or optical rectification of ultrafast optical pump pulses in nonlinear crystals has emerged as the most efficient approach for high-field THz generation. Earlier …
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Characterization of short-pulse laser-produced fast electrons by 3D hybrid particle-in-cell modeling of angularly resolved bremsstrahlung
… critical for numerous applications, such as the generation of secondary particle sources, the creation of warm dense matter (WDM), advanced fusion concepts, and intense x-ray radiation for probing complex high areal density objects and inertial confinement fusion (ICF) fusion cores. However, …
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Xray Generation by Field Emission
Since the discovery of X-rays over a century ago the techniques applied to the engineering of X-ray sources have remained relatively unchanged. From the inception of thermionic electron sources, which, due to simplicity of fabrication, remain central to almost all X-ray applications at this time, …