Results 31 to 40 of about 140,342 (289)

High average current electron guns for high-power free electron lasers

Physical Review Special Topics. Accelerators and Beams, 2011
High average power free-electron lasers (FELs) require high average current electron injectors capable of generating high quality, short duration electron bunches with a repetition rate equal to the frequency of the rf linac.
Phillip Sprangle, Joseph Peñano, Bahman Hafizi, Daniel Gordon, Steven Gold, Antonio Ting, Chad Mitchell   +6 more
doaj   +1 more source

Recirculated Wave Undulators for Compact FELs

Applied Sciences, 2021
Particular schemes of Free Electron Lasers (FELs) are designed to exploit wave undulators. We consider a system employing a recirculated electromagnetic undulator provided by a high-power laser in a resonator cavity.
Alessandro Curcio
doaj   +1 more source

Angular Distribution of Nonlinear Harmonic Generation in Helical Undulators: a comparison between experiments and theory

, 2011
Using harmonic emission from circularly polarized undulator is a procedure that is normally employed on synchrotron beamlines in order to extend the covered spectral range.
Allaria, E., De Ninno, G., Geloni, G., Spezzani, C.   +3 more
core   +1 more source

Imaging atom-clusters by hard x-ray free electron lasers [PDF]

, 2003
The ingenious idea of single molecule imaging by hard x-ray Free Electron Laser (X-FEL) pulses was recently proposed by Neutze et al. [Nature,406,752(2000)].
, Fienup J. R., Fienup J. R., Frank J., G Faigel, G Oszlányi, Jurek Z., Materlik G., Miao J., Wang X. J., Z Jurek   +10 more
core   +1 more source

Limitations of electron beam conditioning for free-electron lasers

Physical Review Special Topics. Accelerators and Beams, 2003
Several ideas have been proposed to “condition” an electron beam prior to the undulator of a free-electron laser (FEL) by increasing each particle’s energy in proportion to the square of its transverse betatron amplitude.
P. Emma, G. Stupakov
doaj   +1 more source

Mechanisms for the production of harmonics in free electron lasers [PDF]

, 1991
Harmonics in the radiation of a free electron laser are useful for extending the range of tuning, may originate in spontaneous or parametric processes, and can take part in stimulated emission or amplification.
Elgin, J.N., Penman, C.
core   +2 more sources

Solar driven lasers for power satellite applications [PDF]

, 1980
The technological feasibility of using multimagawatt lasers for space power transmission is discussed. Candidate lasers include electric discharge lasers, direct optically pumped lasers, and free electron ...
Cassady, P., Klosterman, E., Taussio, R.
core   +1 more source

Relativistic x-ray free-electron lasers in the quantum regime [PDF]

, 2012
We present a nonlinear theory for relativistic x-ray free-electron lasers in the quantum regime, using a collective Klein-Gordon (KG) equation (for relativistic electrons), which is coupled with the Maxwell-Poisson equations for the electromagnetic and ...
Eliasson, Bengt, Shukla, Padma
core   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Pulse Duration of Seeded Free-Electron Lasers

Physical Review X, 2017
The pulse duration, and, more generally, the temporal intensity profile of free-electron laser (FEL) pulses, is of utmost importance for exploring the new perspectives offered by FELs; it is a nontrivial experimental parameter that needs to be ...
Paola Finetti, Hauke Höppner, Enrico Allaria, Carlo Callegari, Flavio Capotondi, Paolo Cinquegrana, Marcello Coreno, Riccardo Cucini, Miltcho B. Danailov, Alexander Demidovich, Giovanni De Ninno, Michele Di Fraia, Raimund Feifel, Eugenio Ferrari, Lars Fröhlich, David Gauthier, Torsten Golz, Cesare Grazioli, Yun Kai, Gabor Kurdi, Nicola Mahne, Michele Manfredda, Nikita Medvedev, Ivaylo P. Nikolov, Emanuele Pedersoli, Giuseppe Penco, Oksana Plekan, Mark J. Prandolini, Kevin C. Prince, Lorenzo Raimondi, Primoz Rebernik, Robert Riedel, Eleonore Roussel, Paolo Sigalotti, Richard Squibb, Nikola Stojanovic, Stefano Stranges, Cristian Svetina, Takanori Tanikawa, Ulrich Teubner, Victor Tkachenko, Sven Toleikis, Marco Zangrando, Beata Ziaja, Franz Tavella, Luca Giannessi   +45 more
doaj   +1 more source