Hard x-ray and hot electron production from intense laser irradiation of wavelength-scale particles

2001 ◽  
Vol 34 (10) ◽  
pp. L313-L320 ◽  
Author(s):  
T D Donnelly ◽  
M Rust ◽  
I Weiner ◽  
M Allen ◽  
R A Smith ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Intense Laser ◽  
Hot Electron ◽  
X Ray ◽  
Electron Production ◽  
Wavelength Scale

scholarly journals Hot electron and x-ray production from intense laser irradiation of wavelength-scale polystyrene spheres

2007 ◽  
Vol 14 (6) ◽  
pp. 062704 ◽  
Author(s):  
H. A. Sumeruk ◽  
S. Kneip ◽  
D. R. Symes ◽  
I. V. Churina ◽  
A. V. Belolipetski ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Intense Laser ◽  
Hot Electron ◽  
Polystyrene Spheres ◽  
X Ray ◽  
Wavelength Scale

scholarly journals Spectral analysis of x-ray emission created by intense laser irradiation of copper materialsa)

2012 ◽  
Vol 83 (10) ◽  
pp. 10E114 ◽  
Author(s):  
C. M. Huntington ◽  
C. C. Kuranz ◽  
G. Malamud ◽  
R. P. Drake ◽  
H.-S. Park ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Laser Irradiation ◽  
Intense Laser ◽  
X Ray

scholarly journals Hot electron refluxing in the short intense laser pulse interactions with solid targets and its influence on K-α radiation

Nukleonika ◽  
2015 ◽  
Vol 60 (2) ◽  
pp. 233-237 ◽  
Author(s):  
Vojtěch Horný ◽  
Ondřej Klimo
Keyword(s):  
Strong Electric Field ◽  
Target Material ◽  
Target Thickness ◽  
Intense Laser ◽  
Rear Side ◽  
Hot Electron ◽  
Fast Electrons ◽  
X Ray ◽  
Particle In Cell ◽  
Beam Interaction

Abstract Fast electrons created as a result of the laser beam interaction with a solid target penetrate into the target material and initialize processes leading to the generation of the characteristic X-ray K-α radiation. Due to the strong electric field induced at the rear side of a thin target the transmitted electrons are redirected back into the target. These refluxing electrons increase the K-α radiation yield, as well as the duration of the X-ray pulse and the size of the radiation emitting area. A model describing the electron refluxing was verified via particle-in-cell simulations for non-relativistic electron energies. Using this model it was confirmed that the effect of the electron refluxing on the generated X-ray radiation depends on the target thickness and the target material. A considarable increase of the number of the emitted K-α photons is observed especially for thin targets made of low-Z materials, and for higher hot electron temperatures.

Comparison of measured and calculated x-ray and hot-electron production in short-pulse laser-solid interactions at moderate intensities

1999 ◽  
Vol 60 (2) ◽  
pp. 2209-2217 ◽  
Author(s):  
Th. Schlegel ◽  
S. Bastiani ◽  
L. Grémillet ◽  
J.-P. Geindre ◽  
P. Audebert ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Short Pulse ◽  
Hot Electron ◽  
X Ray ◽  
Short Pulse Laser ◽  
Electron Production ◽  
Laser Solid Interactions

Hot electron generation from intense laser irradiation of microtipped cone and wedge targets

2008 ◽  
Vol 15 (5) ◽  
pp. 052701 ◽  
Author(s):  
B. I. Cho ◽  
G. M. Dyer ◽  
S. Kneip ◽  
S. Pikuz ◽  
D. R. Symes ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Intense Laser ◽  
Hot Electron ◽  
Electron Generation

Electron Heating by Ultra-Fast, Ultra-Intense Laser Irradiation of Wavelength-Scale Wires

CLEO: 2015 ◽  
2015 ◽  
Author(s):  
Kristina Serratto ◽  
Franki Aymond ◽  
Brandon Simon ◽  
Aaron Bernstein ◽  
Todd Ditmire
Keyword(s):  
Laser Irradiation ◽  
Intense Laser ◽  
Electron Heating ◽  
Wavelength Scale

Effect of a Laser irradiation on the vascularisation of safety and X-ray radiated bone

2007 ◽  
Author(s):  
Sophie Desmons ◽  
Caroline Delfosse ◽  
Philippe Rochon ◽  
Bruno Buys ◽  
Guillaume Penel ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
X Ray

Increased hot electron production from the addition of a gas cell in sub-picosecond laser–foil interactions

2020 ◽  
Vol 27 (12) ◽  
pp. 123101
Author(s):  
T. Peterken ◽  
A. P. L. Robinson ◽  
R. M. G. M. Trines ◽  
R. J. Clarke
Keyword(s):  
Picosecond Laser ◽  
Hot Electron ◽  
Gas Cell ◽  
Electron Production

scholarly journals Carbon-coated magnetic particles increase tissue temperatures after laser irradiation

2015 ◽  
Vol 08 (05) ◽  
pp. 1550018 ◽  
Author(s):  
Shupeng Liu ◽  
Na Chen ◽  
Fufei Pang ◽  
Zhengyi Chen ◽  
Tingyun Wang
Keyword(s):  
Laser Irradiation ◽  
Magnetic Particles ◽  
Laser Energy ◽  
Thermal Therapy ◽  
Vibrating Sample Magnetometer ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fbg Sensor ◽  
Transmission Electron ◽  
Carbon Coated

Purpose: This work focused on the investigation the hyperthermia performance of the carbon-coated magnetic particles (CCMPs) in laser-induced hyperthermia. Materials and methods: We prepared CCMPs using the organic carbonization method, and then characterized them with transmission electron microscopy (TEM), ultraviolet-visible (UV-Vis) spectrophotometry, vibrating sample magnetometer (VSM) and X-ray diffraction (XRD). In order to evaluate their performance in hyperthermia, the CCMPs were tested in laser-induced thermal therapy (LITT) experiments, in which we employed a fully distributed fiber Bragg grating (FBG) sensor to profile the tissue's dynamic temperature change under laser irradiation in real time. Results: The sizes of prepared CCMPs were about several micrometers, and the LITT results show that the tissue injected with the CCMPs absorbed more laser energy, and its temperature increased faster than the contrast tissue without CCMPs. Conclusions: The CCMPs may be of great help in hyperthermia applications.

Sign in / Sign up

Export Citation Format

Share Document