STUDIES PLANNED AT CAT, INDORE ON LASER-PLASMA BASED ELECTRON ACCELERATION

2007 ◽  
Vol 21 (03n04) ◽  
pp. 459-463 ◽  
Author(s):  
P. A. NAIK ◽  
P. D. GUPTA
Keyword(s):  
Laser Plasma ◽  
Laser System ◽  
Sapphire Laser ◽  
Advanced Technology ◽  
Plasma Diagnostic ◽  
Diagnostic Systems ◽  
Laser Plasma Interaction ◽  
Matter Interaction ◽  
Set Up ◽  
Future Work

The Laser Plasma Division at the Centre for Advanced Technology is engaged in a variety of research and development activities on laser-plasma interaction with special emphasis on laser-matter interaction at ultra-high intensities. An important aspect of our future work is studies in laser-plasma based acceleration using an elaborate infrastructural set-up of ultra-fast laser and plasma diagnostic systems and recently acquired 10TW, 50fs Ti :Sapphire laser system. This paper presents outline of the planned studies in this field.

scholarly journals LULI activities in the field of high-power laser–matter interaction

1999 ◽  
Vol 17 (2) ◽  
pp. 195-208 ◽  
Author(s):  
J.-C. GAUTHIER ◽  
F. AMIRANOFF ◽  
C. CHENAIS-POPOVICS ◽  
G. JAMELOT ◽  
M. KOENIG ◽  
...  
Keyword(s):  
Laser System ◽  
Laser Fusion ◽  
High Power Laser ◽  
Power Laser ◽  
Laser Plasma Interaction ◽  
Research Activities ◽  
New Concepts ◽  
Matter Interaction ◽  
Relativistic Regime ◽  
Support Facility

LULI will play an important role as a major laser ICF and IFE support facility in Europe after recent or future changes (ASTERIX-Garching, CEA-Limeil) in large laser system programs. We will review the research activities which have been carried out at LULI during the last 2 years both in the nanosecond regime and in the subpicosecond ultraintense regime. As part of the LULI upgrade project, a new 30-J, 300-fs, 100-TW ultraintense laser chain has been commissioned in 1997. This laser has allowed the first complete demonstration of wakefield electron acceleration and is presently used to study new concepts in laser fusion and laser–plasma interaction experiments in the relativistic regime.

scholarly journals A six-beam high-power KrF excimer laser system with energy of 100 J/23 ns

2002 ◽  
Vol 20 (1) ◽  
pp. 123-127 ◽  
Author(s):  
YUSHENG SHAN ◽  
NAIYAN WANG ◽  
JINGLONG MA ◽  
WEIYI MA ◽  
DAWEI YANG ◽  
...  
Keyword(s):  
Excimer Laser ◽  
High Power ◽  
Laser System ◽  
Diagnostic Systems ◽  
Laser Plasma Interaction ◽  
Main Amplifier ◽  
System A ◽  
Beam Output ◽  
Fundamental Research ◽  
Krf Excimer Laser

A six-beam multiplexing master-oscillator-power-amplifier (MOPA) high power KrF excimer laser system has been built at CIAE for fundamental research on laser–plasma interaction. The MOPA system consists of front-end, two-stage KrF amplifiers (preamplifier and main amplifier) pumped by two-side electron beams, an optical angular multiplexing system, a synchronization trigger system, and a controlling-data acquisition system and some diagnostic systems. The total energy of the six-beam output from main amplifier on the target is 100 J/23 ns, the divergence of one beam is 0.2 mrad, the focal spot diameter is 220 μm, and the focal intensity on the target is 1013 W/cm2.

A 110-TW multiple-beam laser system with a 5-TW wavelength-tunable auxiliary beam for versatile control of laser-plasma interaction

2014 ◽  
Vol 117 (4) ◽  
pp. 1189-1200 ◽  
Author(s):  
Te-Sheng Hung ◽  
Chi-Hsiang Yang ◽  
Jyhpyng Wang ◽  
Szu-yuan Chen ◽  
Jiunn-Yuan Lin ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Laser System ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Wavelength Tunable ◽  
Multiple Beam ◽  
Beam Laser

scholarly journals Experimental results for high intensity KrF laser/plasma interaction

1986 ◽  
Vol 4 (3-4) ◽  
pp. 329-348 ◽  
Author(s):  
A. A. Offenberger ◽  
R. Fedosejevs ◽  
P. D. Gupta ◽  
R. Popil ◽  
Y. Y. Tsui
Keyword(s):  
Laser Plasma ◽  
Brillouin Scattering ◽  
Laser System ◽  
Experimental Results ◽  
Stimulated Scattering ◽  
Plasma Interaction ◽  
X Ray ◽  
Laser Plasma Interaction ◽  
Incident Laser Pulse ◽  
Krf Laser

A high power KrF laser system employing beam multiplexing and stimulated Raman or Brillouin scattering to produce pulses as short as 1 ns and focused intensities on target of 1011 to 1014 W/cm2 has been developed for laser/plasma interaction research. A variety of investigations have been pursued on single and multilayer targets with variable atomic numbers. Absorption, transport, X-ray conversion, ion expansion characteristics, mass ablation and ablation pressure scaling, and stimulated scattering instabilities are among features that have been studied as a function of laser intensity. A wide variety of laser and target diagnostics are employed including focal plane imaging cameras for energy distribution and UV and soft X-ray streak cameras for temporally resolving the incident laser pulse and X-ray emission. Experimental results will be presented and our current understanding of the KrF laser/plasma interaction will be discussed.

Study on active probe laser system used for laser plasma diagnostic

2003 ◽  
Author(s):  
Xiaodong Yuan ◽  
Xiaofeng Wei ◽  
Chengcheng Wang ◽  
Xinwu Qing ◽  
Wu Deng ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Laser System ◽  
Probe Laser ◽  
Plasma Diagnostic ◽  
Active Probe

scholarly journals Endoscopic Pan/Tilt Camera for Thorax Interventions – Design and first results

2019 ◽  
Vol 5 (1) ◽  
pp. 517-519
Author(s):  
Alexander Mrokon ◽  
Peter P. Pott ◽  
Volker Steger
Keyword(s):  
Minimally Invasive ◽  
Inclination Angle ◽  
Magnetic Circuit ◽  
Mechanical Stability ◽  
Fem Simulation ◽  
Camera System ◽  
Design Changes ◽  
First Results ◽  
Set Up ◽  
Future Work

AbstractMinimally invasive surgery in some cases suffers from a limited view because certain areas are obscured by others. In this paper, a system is described, which can be used in minimally invasive procedures as an addition to a standard endoscope to improve the range of view. Through FEM simulation a magnetic circuit was designed to position the camera head. Subsequently, a camera positioning system was set up that includes an extracorporeal and an intracorporeal unit. The first controls the intracorporeal system. The latter has a camera inclination angle of up to 65° and an additional vertically downward viewing angle when aligned in parallel (inclination angle 0°). The panning angle is 360°. The camera system was evaluated in lab and cadaver trials. It has been found that the size of the intracorporeal system (16 × 10 × 150 mm) represents a major problem. Future work will focus of the reduction of the system’s size, the improvement of the camera image quality, and design changes considering mechanical stability.

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