1
|
Grigoryan B, Kasyan G, Pivazyan L, Tikhonova L, Pushkar D. Predictive pre-operative nomogram of relapse-free survival rate in patients with urogenital fistula. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00755-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
2
|
Lemery F, Piot P, Amatuni G, Boonpornprasert P, Chen Y, Good J, Grigoryan B, Groß M, Krasilinikov M, Lishilin O, Loisch G, Oppelt A, Philipp S, Qian H, Renier Y, Stephan F, Zagorodnov I. Passive Ballistic Microbunching of Nonultrarelativistic Electron Bunches Using Electromagnetic Wakefields in Dielectric-Lined Waveguides. Phys Rev Lett 2019; 122:044801. [PMID: 30768287 DOI: 10.1103/physrevlett.122.044801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Temporally modulated electron beams have a wide array of applications ranging from the generation of coherently enhanced electromagnetic radiation to the resonant excitation of electromagnetic wakefields in advanced-accelerator concepts. Likewise producing low-energy ultrashort microbunches could be useful for ultrafast electron diffraction and new accelerator-based light-source concepts. In this Letter we propose and experimentally demonstrate a passive microbunching technique capable of forming a picosecond bunch train at ∼6 MeV. The method relies on the excitation of electromagnetic wakefields as the beam propagates through a dielectric-lined waveguide. Owing to the nonultrarelativistic nature of the beam, the induced energy modulation eventually converts into a density modulation as the beam travels in a following free-space drift. The modulated beam is further accelerated to ∼20 MeV while preserving the imparted density modulation.
Collapse
Affiliation(s)
- F Lemery
- Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | - P Piot
- Northern Illinois Center for Accelerator & Detector Development and Department of Physics, Northern Illinois University, DeKalb Illinois 60115, USA
- Accelerator Physics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G Amatuni
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
- Center for the Advancement of Natural Discoveries using Light Emission, Yerevan 0040, Armenia
| | - P Boonpornprasert
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - Y Chen
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - J Good
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - B Grigoryan
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
- Center for the Advancement of Natural Discoveries using Light Emission, Yerevan 0040, Armenia
| | - M Groß
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - M Krasilinikov
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - O Lishilin
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - G Loisch
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - A Oppelt
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - S Philipp
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - H Qian
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - Y Renier
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - F Stephan
- Deutsches Elektronen-Synchrotron, Platannenallee 6, 15738 Zeuthen, Germany
| | - I Zagorodnov
- Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| |
Collapse
|
3
|
Calderon GA, Thai P, Hsu CW, Grigoryan B, Gibson SM, Dickinson ME, Miller JS. Tubulogenesis of co-cultured human iPS-derived endothelial cells and human mesenchymal stem cells in fibrin and gelatin methacrylate gels. Biomater Sci 2017; 5:1652-1660. [DOI: 10.1039/c7bm00223h] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Here, we investigate the tubulogenic potential of commercially-sourced iPS-ECs with and without supporting commercially-sourced hMSCs within 3D natural fibrin or semi-synthetic gelatin methacrylate (GelMA) hydrogels.
Collapse
Affiliation(s)
| | - P. Thai
- Department of Bioengineering
- Rice University
- Houston
- USA
| | - C. W. Hsu
- Department of Molecular Physiology and Biophysics
- Baylor College of Medicine
- Houston
- USA
| | - B. Grigoryan
- Department of Bioengineering
- Rice University
- Houston
- USA
| | - S. M. Gibson
- Department of Bioengineering
- Rice University
- Houston
- USA
- Department of Molecular Physiology and Biophysics
| | - M. E. Dickinson
- Department of Molecular Physiology and Biophysics
- Baylor College of Medicine
- Houston
- USA
| | - J. S. Miller
- Department of Bioengineering
- Rice University
- Houston
- USA
| |
Collapse
|
4
|
Ayvazyan V, Baboi N, Bohnet I, Brinkmann R, Castellano M, Castro P, Catani L, Choroba S, Cianchi A, Dohlus M, Edwards HT, Faatz B, Fateev AA, Feldhaus J, Flöttmann K, Gamp A, Garvey T, Genz H, Gerth C, Gretchko V, Grigoryan B, Hahn U, Hessler C, Honkavaara K, Hüning M, Ischebeck R, Jablonka M, Kamps T, Körfer M, Krassilnikov M, Krzywinski J, Liepe M, Liero A, Limberg T, Loos H, Luong M, Magne C, Menzel J, Michelato P, Minty M, Müller UC, Nölle D, Novokhatski A, Pagani C, Peters F, Pflüger J, Piot P, Plucinski L, Rehlich K, Reyzl I, Richter A, Rossbach J, Saldin EL, Sandner W, Schlarb H, Schmidt G, Schmüser P, Schneider JR, Schneidmiller EA, Schreiber HJ, Schreiber S, Sertore D, Setzer S, Simrock S, Sobierajski R, Sonntag B, Steeg B, Stephan F, Sytchev KP, Tiedtke K, Tonutti M, Treusch R, Trines D, Türke D, Verzilov V, Wanzenberg R, Weiland T, Weise H, Wendt M, Will I, Wolff S, Wittenburg K, Yurkov MV, Zapfe K. Generation of GW radiation pulses from a VUV free-electron laser operating in the femtosecond regime. Phys Rev Lett 2002; 88:104802. [PMID: 11909361 DOI: 10.1103/physrevlett.88.104802] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2001] [Indexed: 05/23/2023]
Abstract
Experimental results are presented from vacuum-ultraviolet free-electron laser (FEL) operating in the self-amplified spontaneous emission (SASE) mode. The generation of ultrashort radiation pulses became possible due to specific tailoring of the bunch charge distribution. A complete characterization of the linear and nonlinear modes of the SASE FEL operation was performed. At saturation the FEL produces ultrashort pulses (30-100 fs FWHM) with a peak radiation power in the GW level and with full transverse coherence. The wavelength was tuned in the range of 95-105 nm.
Collapse
Affiliation(s)
- V Ayvazyan
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22603 Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|