Search Results - "Tatchyn, R"

Principles of high-contrast energy modulation and microbunching of electron beams by Tatchyn, R.

“…Recent advancements in ultra-short-pulse terawatt IR/visible/UV laser technology have made it possible to consider particle-beam energy modulation schemes in…”
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Field design studies of a planar hybrid/permanent magnet undulator with strong planar permanent magnet focusing by Tatchyn, R

“…Undulators for Free Electron Laser (FEL) amplifiers driven by multi-GeV electron beams generally require superimposed focusing substantially stronger than that…”
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Image tuning techniques for enhancing the performance of pure permanent magnet undulators with small gap/period ratios by Tatchyn, R

“…The on-axis field of a small-gap undulator constructed out of pure permanent magnet (PM) blocks arranged in an alternating-dipole (i.e., 2 dipoles/period)…”
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X-ray generator based on Compton scattering by Androsov, V., Agafonov, A., Botman, J.I.M., Bulyak, E., Drebot, I., Gladkikh, P., Grevtsev, V., Ivashchenko, V., Karnaukhov, I., Lapshin, V., Lebedev, A., Markov, V., Mocheshnikov, N., Mytsykov, A., Peev, F., Ryezayev, A., Shcherbakov, A., Skomorokhov, V., Skyrda, V., Tatchyn, R., Telegin, Y., Trotsenko, V., Zelinsky, A.

“…Nowadays, the sources of the X-rays based on a storage ring with low beam energy and Compton scattering of intense laser beam are under development in several…”
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Research and development toward a 4.5−1.5 Å linac coherent light source (LCLS) at SLAC by Tatchyn, R., Arthur, J., Baltay, M., Bane, K., Boyce, R., Cornacchia, M., Cremer, T., Fisher, A., Hahn, S.-J., Hernandez, M., Loew, G., Miller, R., Nelson, W.R., Nuhn, H.-D., Palmer, D., Paterson, J., Raubenheimer, T., Weaver, J., Wiedemann, H., Winick, H., Pellegrini, C., Travish, G., Scharlemann, E.T., Caspi, S., Fawley, W., Halbach, K., Kim, K.-J., Schlueter, R., Xie, M., Meyerhofer, D., Bonifacio, R., De Salvo, L.

“…In recent years significant studies have been initiated on the feasibility of utilizing a portion of the 3 km S-band accelerator at SLAC to drive a short…”
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A fast analytical undulator model for realistic high-energy FEL simulations by Tatchyn, R, Cremer, T

“…A number of leading FEL simulation codes used for modeling gain in the ultralong undulators required for SASE saturation in the <100 Å range employ simplified…”
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Research and development for X-ray optics and diagnostics on the linac coherent light source (LCLS) by Wootton, A, Arthur, J, Barbee, T, Bionta, R, Jankowski, A, London, R, Ryutov, D, Shepherd, R, Shlyaptsev, V, Tatchyn, R, Toor, A

“…The Linac Coherent Light Source is a 1.5–15 Å-wavelength free-electron laser (FEL), currently proposed for the Stanford Linear Accelerator Center. The photon…”
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Design considerations for a dual-etalon seed-light pre-filter for high-energy LCLS applications by Tatchyn, R, Cremer, T

“…A flexible seed-light generation and coherence filtering scheme is considered for a 1.5 Å FEL operating at 15 GeV. For R&D applications the configuration…”
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Compound refractive lenses for novel X-ray sources by Piestrup, M.A, Beguiristain, H.R, Gary, C.K, Cremer, J.T, Pantell, R.H, Tatchyn, R

“…We have measured the intensity profile of X-rays focused by a linear array of closely spaced spherical lenses fabricated using Mylar (C 5H 4O 2). We have…”
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Planar permanent magnet multipoles for particle accelerator and storage ring applications by Tatchyn, R.

“…In prior work a planar permanent magnet (PM) configuration for generating an approximate quadrupole field distribution in the vicinity of its symmetry axis was…”
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Collective effects in short wavelength free-electron lasers by Freund, H.P., Tatchyn, R.

“…The self-fields generated by the propagation of pulsed electron beams through the wiggler fields in free-electron lasers are calculated and shown to be…”
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Non-linear simulation of X-ray free-electron lasers using realistic wiggler models by Freund, H.P, Tatchyn, R

“…The non-linear simulation of X-ray free-electron lasers is dealt with using the non-wiggler-averaged MEDUSA simulation code and a realistic wiggler model built…”
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Initial studies of electromagnetic shower energy deposition in small-bore superconducting undulator structures in linac environments by Cremer, T, Nelson, W.R, Tatchyn, R

“…One of the more promising technologies for developing minimal-length insertion devices for linac-driven, single-pass free electron lasers (FELs) operating in…”
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Variable-period magnetostatic undulator designs based on iron-free current configurations by Tatchyn, R., Cremer, T.

“…The design of a magnetostatic undulator based on iron-free current configuration is described. Equations describing its performance are derived. Based on this…”
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Photon pulse filtering and modulation based on the extreme temporal compression and correlated energy spread of the electron bunches in the SLAC Linac Coherent Light Source (LCLS) by Tatchyn, R.

“…The LCLS photon pulses are expected to attain unprecedented levels of brightness and brevity in the 300-400 eV range. Nominally, the photon pulse length will…”
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Field-based technique for the longitudinal profiling of ultrarelativistic electron or positron bunches down to lengths of < 10 microns by Tatchyn, R

“…Present and future generations of particle accelerating and storage machines are expected to develop ever-decreasing electron/positron bunch lengths, down to…”
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Infrared (IR) vs. X-ray power generation in the SLAC Linac Coherent Light Source (LCLS) by Tatchyn, R.

“…The LCLS, a free-electron laser (FEL) designed for operation at a first harmonic energy of 300 eV (/spl lambdaspl ap/40 /spl Aring/) in the self-amplified…”
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Molybdenum-silicon multilayer monochromator for the extreme ultraviolet by BARBEE, T. W. JR, PIANETTA, P, REDAELLI, R, TATCHYN, R, BARBEE, T. W. III

“…A two-element molybdenum-silicon multilayer monochromator has been tested in the energy range 60–110 eV on a differentially pumped bending magnet beamline…”
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Derivation of the optical constants of gold from transmission diffraction measurements in the 280-640-eV range by TATCHYN, R, LINDAU, I, KÄLLNE, E, SPILLER, E

“…Measurements of the real and imaginary parts of the complex index of refraction n(circumflex)/n(circumflex) = (1 - delta)+ ik/ of gold have been performed in…”
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Optical cavity vs. electron beam requirements for the operation of a 1.5 Å LCLS in a regenerative amplifier mode by Tatchyn, R.

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