Single-pulse temperature measurements in a turbulent flame using KrF laser-induced O2 fluorescence

1995 ◽  
Author(s):  
J Grinstead ◽  
T Quagliaroli ◽  
G Laufer ◽  
J McDaniel, r
Keyword(s):  
Turbulent Flame ◽  
Single Pulse ◽  
Temperature Measurements ◽  
Krf Laser

Single-pulse temperature measurement in turbulent flame using laser-induced O2 fluorescence

AIAA Journal ◽  
1996 ◽  
Vol 34 (3) ◽  
pp. 624-626 ◽  
Author(s):  
J. H. Grinstead ◽  
T. M. Quagliaroli ◽  
G. Laufer ◽  
J. C. McDaniel
Keyword(s):  
Temperature Measurement ◽  
Turbulent Flame ◽  
Single Pulse

Single-pulse KrF laser ablation and nanopatterning in vacuum of β-titanium alloys used in biomedical applications

2004 ◽  
Vol 79 (4-6) ◽  
pp. 811-813 ◽  
Author(s):  
F. Guillemot ◽  
F. Prima ◽  
V.N. Tokarev ◽  
C. Belin ◽  
M.C. Porté-Durrieu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Titanium Alloys ◽  
Biomedical Applications ◽  
Single Pulse ◽  
Krf Laser

Single Pulse Temperature Measurements in Flames by Thermally Assisted Atomic Fluorescence Spectroscopy

1984 ◽  
Vol 38 (2) ◽  
pp. 113-118 ◽  
Author(s):  
Melanie L. Elder ◽  
G. Zizak ◽  
D. Bolton ◽  
J. J. Horvath ◽  
J. D. Winefordner
Keyword(s):  
Fluorescence Spectroscopy ◽  
Single Pulse ◽  
Temperature Measurements ◽  
Atomic Fluorescence ◽  
Atomic Fluorescence Spectroscopy

scholarly journals Transport of electron beams and stability of optical windows in high-power e-beam-pumped krypton fluoride lasers

2001 ◽  
Vol 19 (4) ◽  
pp. 609-622 ◽  
Author(s):  
V.D. ZVORYKIN ◽  
S.V. ARLANTSEV ◽  
V.G. BAKAEV ◽  
O.V. RANTSEV ◽  
P.B. SERGEEV ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electron Beams ◽  
Fusion Energy ◽  
Single Pulse ◽  
Krypton Fluoride ◽  
Laser Driver ◽  
Krf Laser ◽  
Key Issues ◽  
Titanium Foils ◽  
Krypton Fluoride Lasers

Two of the key issues of a krypton fluoride (KrF) laser driver for inertial fusion energy are the development of long life, high transparency pressure foils (to isolate vacuum in the electron beam diode from a working gas in the laser chamber), and the development of durable, stable, optical windows. Both of these problems have been studied on the single-pulse e-beam-pumped KrF laser installation GARPUN. We have measured the transport of electron beams (300 keV, 50 kA, 100 ns, 10 × 100 cm) through aluminum-beryllium and titanium foils and compared them with Monte Carlo numerical calculations. It was shown that 50-μm thickness Al-Be and 20-μm Ti foils had equal transmittance. However, in contrast to Ti foil, whose surface was strongly etched by fluorine, no surface modification nor fatal damages were observed for Al-Be foils after ∼1000 laser shots and protracted fluorine exposure. We also measured the 8% reduction in the transmission of CaF2 windows under irradiation by scattered electrons when they were set at 8.5 cm apart from the e-beam-pumped region. However an applied magnetic field of ∼0.1 T significantly reduced electron scattering both across and along the laser cell at typical pumping conditions with 1.5 atm pressure working gas. Thus the e-beam-induced absorption of laser radiation in optical windows might be fully eliminated in an e-beam-pumping scheme with magnetic field guiding.

Sign in / Sign up

Export Citation Format

Share Document