Return‐current electron streams in high‐intensity laser target interaction

1981 ◽  
Vol 38 (10) ◽  
pp. 734-736 ◽  
Author(s):  
P. A. Jaanimagi ◽  
N. A. Ebrahim ◽  
N. H. Burnett ◽  
C. Joshi
Keyword(s):  
High Intensity ◽  
Laser Target ◽  
Return Current ◽  
Target Interaction ◽  
High Intensity Laser ◽  
Current Electron ◽  
Intensity Laser

Time-resolvedKαspectra in high-intensity laser-target interaction

1984 ◽  
Vol 29 (4) ◽  
pp. 2294-2297 ◽  
Author(s):  
N. H. Burnett ◽  
G. D. Enright ◽  
A. Avery ◽  
A. Loen ◽  
J. C. Kieffer
Keyword(s):  
High Intensity ◽  
Laser Target ◽  
Target Interaction ◽  
High Intensity Laser ◽  
Intensity Laser

Characterization of the fast electrons distribution produced in a high intensity laser target interaction

2014 ◽  
Vol 21 (3) ◽  
pp. 031212 ◽  
Author(s):  
B. Westover ◽  
C. D. Chen ◽  
P. K. Patel ◽  
H. McLean ◽  
F. N. Beg
Keyword(s):  
High Intensity ◽  
Laser Target ◽  
Fast Electrons ◽  
Target Interaction ◽  
High Intensity Laser ◽  
Intensity Laser

scholarly journals High-Intensity Laser-Driven Oxygen Source from CW Laser-Heated Titanium Tape Targets

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 837
Author(s):  
Kotaro Kondo ◽  
Mamiko Nishiuchi ◽  
Hironao Sakaki ◽  
Nicholas P. Dover ◽  
Hazel F. Lowe ◽  
...  
Keyword(s):  
High Intensity ◽  
Target Surface ◽  
Laser Pulses ◽  
Heavy Ion ◽  
Ion Source ◽  
Laser Target ◽  
Cw Laser ◽  
High Intensity Laser ◽  
Laser Heated ◽  
Intensity Laser

The interaction of high-intensity laser pulses with solid targets can be used as a highly charged, energetic heavy ion source. Normally, intrinsic contaminants on the target surface suppress the performance of heavy ion acceleration from a high-intensity laser–target interaction, resulting in preferential proton acceleration. Here, we demonstrate that CW laser heating of 5 µm titanium tape targets can remove contaminant hydrocarbons in order to expose a thin oxide layer on the metal surface, ideal for the generation of energetic oxygen beams. This is demonstrated by irradiating the heated targets with a PW class high-power laser at an intensity of 5 × 1021 W/cm2, showing enhanced acceleration of oxygen ions with a non-thermal-like distribution. Our new scheme using a CW laser-heated Ti tape target is promising for use as a moderate repetition energetic oxygen ion source for future applications.

scholarly journals Modeling the ultra-high intensity laser pulse – cone target interaction for ion acceleration at CETAL facility

2017 ◽  
Vol 35 (3) ◽  
pp. 458-466 ◽  
Author(s):  
O. Budrigă ◽  
E. D'Humières
Keyword(s):  
Laser Pulse ◽  
High Intensity ◽  
Numerical Study ◽  
Maximum Energy ◽  
Ion Acceleration ◽  
Target Interaction ◽  
Laser Absorption ◽  
High Intensity Laser ◽  
Cone Target ◽  
Intensity Laser

AbstractWe study the interaction of an ultra-high intensity laser pulse with plastic flat-top cone targets with curved walls and cone targets with straight walls. We find the appropriate type, dimensions of the cone target, and the ultra-high intensity laser pulse parameters for which the accelerated ions have the maximum energy and their number is the highest for a lower angular divergence and a better laser absorption. This numerical study will allow one to prepare and optimize first laser-ion acceleration experiments on CETAL using micro-cone targets.

Hot-electron generation and transport in high-intensity laser interaction

1986 ◽  
Vol 64 (8) ◽  
pp. 920-931 ◽  
Author(s):  
N. H. Burnett ◽  
G. D. Enright
Keyword(s):  
High Intensity ◽  
Inertial Confinement Fusion ◽  
National Research Council ◽  
Hot Electrons ◽  
Inertial Confinement ◽  
Hot Electron ◽  
Laser Interaction ◽  
Laser Target ◽  
High Intensity Laser ◽  
Intensity Laser

Experience has shown that at sufficiently high intensity, laser–target interaction is dominated by long mean-free-path electrons generated by resonance absorption. Experimental observations relating to the generation and target coupling of these hot electrons are reviewed with particular emphasis on results obtained in CO2 laser interaction experiments at the National Research Council of Canada. Possible applications of laser-generated hot electrons as a direct driver for inertial-confinement fusion are discussed.

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