Efficient operation of the electron‐beam‐pumped XeCl laser

1978 ◽  
Vol 33 (6) ◽  
pp. 523-525 ◽  
Author(s):  
L. F. Champagne
Keyword(s):  
Electron Beam ◽  
Xecl Laser ◽  
Efficient Operation

Theoretical evaluation of the rare‐gas diluent effects for an electron‐beam‐excited XeCl laser

1983 ◽  
Vol 42 (9) ◽  
pp. 766-768 ◽  
Author(s):  
Fumihiko Kannari ◽  
Akira Suda ◽  
Minoru Obara ◽  
Tomoo Fujioka
Keyword(s):  
Electron Beam ◽  
Rare Gas ◽  
Xecl Laser ◽  
Theoretical Evaluation

Investigation of the emission characteristics of an XeCl laser excited by microsecond electron-beam pulses

1987 ◽  
Vol 17 (5) ◽  
pp. 605-607
Author(s):  
Yu I Bychkov ◽  
N G Ivanov ◽  
V F Losev ◽  
Gennadii A Mesyats ◽  
V V Ryzhov
Keyword(s):  
Electron Beam ◽  
Emission Characteristics ◽  
Xecl Laser

scholarly journals Design and efficient operation of a coaxial RBWO

2013 ◽  
Vol 31 (2) ◽  
pp. 321-331 ◽  
Author(s):  
Y. Teng ◽  
C.H. Chen ◽  
H. Shao ◽  
J. Sun ◽  
Z.M. Song ◽  
...  
Keyword(s):  
Electron Beam ◽  
Slow Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Power Capacity ◽  
Efficient Operation ◽  
Backward Wave Oscillator ◽  
Wave Oscillator ◽  
Backward Wave ◽  
Output Efficiency

AbstractCoaxial relativistic backward wave oscillator with the rippled inner conductor not only increases the output efficiency but also results in the serious phenomenon of pulse shortening in experiments. Our research indicates that the two main mechanisms leading to the pulse shortening are the electron beam interruption and combining effects of the explosive field electron emission and the secondary electron multipactor on the surface of the slow-wave structure. In order to enhance its power capacity the electrodynamic structure is modified by detailed analysis of the field distribution in the coaxial slow-wave structure. The appropriate resonant reflector and the electron collector are developed for the application of the coaxial relativistic backward wave oscillator. A series of surface treatment is applied to enhance the power capacity of the coaxial RBWO. In the experiment, the microwave pulse duration is increased from less than 10 ns to 20 ns, and the output efficiency is enhanced from less than 20% to 34% employing the electron beam pulse of the full width at half maximum 28 ns. The peak power of 1.01 GW at the frequency of 7.4 GHz is achieved. It is found that the output efficiency of the coaxial RBWO is likely to be advanced if its power capacity can be boosted further.

Efficient operation of Blumlein‐discharge‐excited XeCl laser

1980 ◽  
Vol 37 (10) ◽  
pp. 883-885 ◽  
Author(s):  
Chen Jianwen ◽  
Fu Shufen ◽  
Liu Miaohong
Keyword(s):  
Xecl Laser ◽  
Efficient Operation

scholarly journals A new cryo-EM system for electron 3D crystallography by eEFD

2019 ◽  
Author(s):  
Koji Yonekura ◽  
Tetsuya Ishikawa ◽  
Saori Maki-Yonekura
Keyword(s):  
Electron Beam ◽  
Data Collection ◽  
Membrane Protein ◽  
Energy Loss ◽  
Protein Complexes ◽  
Efficient Operation ◽  
Membrane Protein Complex ◽  
Precise Control ◽  
First Results ◽  
Multiple Samples

AbstractA new cryo-EM system has been developed and investigated for use in protein electron 3D crystallography. The system provides parallel illumination of a coherent 300 kV electron beam to a sample, filters out energy-loss electrons through the sample with an in-column energy filter, and allows rotational data collection on a fast camera. It also possesses motorized cryo-sample loading and automated liquid-nitrogen filling for cooling of multiple samples. To facilitate its use, we developed GUI programs for efficient operation and accurate structure analysis. Here we report on the performance of the system and first results for thin 3D crystals of the protein complexes, catalase and membrane protein complex ExbBD. Data quality is remarkably improved with this approach, which we name eEFD (electron energy-filtered diffraction of 3D crystals), compared with those collected at 200 kV without energy filtration. Key advances include precise control of the microscope and recordings of lens fluctuations, which the programs process and respond to. We also discuss the merits of higher-energy electrons and filtration of energy-loss electrons in electron 3D crystallography.

Simulation of the radiation of a wide-aperture XeCl laser excited with an electron beam

Laser Physics ◽  
2006 ◽  
Vol 16 (8) ◽  
pp. 1175-1177 ◽  
Author(s):  
A. M. Boichenko ◽  
S. I. Yakovlenko
Keyword(s):  
Electron Beam ◽  
Xecl Laser ◽  
Wide Aperture

Contrast enhancement in an electron-beam-excited wide-aperture XeCl laser

Laser Physics ◽  
2008 ◽  
Vol 18 (10) ◽  
pp. 1131-1132
Author(s):  
A. M. Boichenko ◽  
R. I. Golyatina
Keyword(s):  
Electron Beam ◽  
Contrast Enhancement ◽  
Xecl Laser ◽  
Wide Aperture

scholarly journals Electron-beam sustained discharge XeCl laser

1985 ◽  
Vol 3 (4) ◽  
pp. 319-345 ◽  
Author(s):  
E. Fiorentino ◽  
T. Letardi ◽  
A. Marino ◽  
E. Sabia ◽  
M. Vannini
Keyword(s):  
Electron Beam ◽  
Laser Pulse ◽  
Pulse Energy ◽  
Laser Pulse Energy ◽  
Laser System ◽  
Xecl Laser ◽  
Sustained Discharge ◽  
System Operating

In this work the construction characteristics and performances of a laser system operating with an e-beam sustained discharge are described. Operating with XeCl, the laser pulse energy is over 4 J. Details of the measurements on the system are also reported.

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