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Echo-enabled harmonic generation for seeded FELs · HGHG scheme that allows generation of temporally coherent radiation by using up-frequency conversion of a high-power seeding signal

High Power Radiation Sources using the Steady-state ... · V m sin (2 z= m), i.e. the reverse of the upstream section. The upstream section functions similarly to an HGHG sec-tion

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ROADS TO X-RAY LASER HGHG and SASE · producing FEL: HGHG and SASE; himself being the inventor of HGHG. He will also describe current projects in FEL laboratories in China, USA and

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Physics of Free-Electron Lasers Optical Architecturesuspas.fnal.gov/materials/14UNM/3_Optical_Architectures.pdf · • HGHG . LA -UR 14 24313 3 Elements of an FEL Oscillator A typical

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Soft X-ray FEL Seeding by SLAC · High Gain Harmonic Generation (HGHG) has also been examined in detail, but does not deliver on the expectations of spectral brightness, spectral

FERMI: EUV and Soft X-Ray FELs with HGHG · In HGHG only electrons that see optimal seed intensity contribute to FEL For strong seeding, electrons in the central region go in overbunching

First Lasing of an HGHG Seeded FEL at FLASH · The HGHG seeding experiment was conceptualized in 2011 [5,7] and a dedicated seed injection setup was partially commissioned in 2012

Phase-merging enhanced harmonic generation and its advances · Typical HGHG setup: the local beam energy spread is amplified by a factor of 2πNΔγ/γ 0 which is usually a relatively

Bonding in Mercury-Alkali Molecules: Orbital-driven van der Waals … · 2015-11-24 · parentheses give the ideal covalent HgA (HgH, HgHg) bond length estimated from covalent radii

X-ray Free Electron Laser seeded by ir laser driven high -order …home.physics.ucla.edu/calendar/Workshops/CFC_FEL_2009/... · 2009. 5. 28. · HHG-HGHG with LCLS-type electron beam

Beam Energy Spread for HGHG in FLASH222.04.2010 S2E Meeting Technical constraints and beam parameters I > 1kA ∆ > 200 fs QI! ' 0.2nC ACC39 ACC4/5/6/7 Energy spread < 120keV

Nonlinear Harmonics in the High-Gain Harmonic Generation/67531/metadc719087/m2/1/high_re… · HGHG efficiency will also result from too much energy modulation or too much phase-space

Hoshizaki · PTR1SSE-FGFG PTR1SSE-FSFS PTR1SSE-HGHG PTR1SSE-HGHS PTR1SSE-HSHS Professional Series Refrigerated Kitchen Equipment Hoshizaki America, Inc. Number: 71328 Issued: 6-24-2011

Generation of intense attosecond x-ray pulses using Echo ...home.physics.ucla.edu/calendar/Workshops/CFC_FEL... · Principles of HGHG FEL Energy modulation in the modulator Energy

î 1;1) K arXiv:1604.01492v1 [physics.acc-ph] 6 Apr 2016 · 2018. 10. 9. · Chinese Physics C Vol. xx, No. x (201x) xxxxxx Fig. 2. Self-seeded HGHG FEL with separated seed ampli

689 ' # '5& *#6 & 7 · The fundamental wavelength emitted is proportional to u / 2, where u is the undulator period, ... In the High Gain Harmonic Generation (HGHG) scheme [5 11],

Echo-Enabled Harmonic Generation for seeded FELs - theory ...HGHG harmonics In the limit of large k, the optimized bunching factor, jb k j ˇ 0:68 k 1=3 e - k 2 2A2 Large Adeteriorates