Matrix-Assisted UV Laser Desorption with a Time Digitizer

1991 ◽  
pp. 221-225
Author(s):  
W. Ens ◽  
Y. Mao ◽  
F. Mayer ◽  
K. G. Standing
Keyword(s):  
Laser Desorption ◽  
Uv Laser

scholarly journals Enhancement of the design of a pulsed UV laser system for a laser-desorption mass spectrometer on Mars

2018 ◽  
Author(s):  
C. Kolleck ◽  
M. Ernst ◽  
M. Hunnekuhl ◽  
A. Moalem ◽  
D. Kracht ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Laser System ◽  
Laser Desorption ◽  
Uv Laser

Determination of the Hapten Density of Immuno-Conjugates by Matrix-Assisted UV Laser Desorption/Ionization Mass Spectrometry

1992 ◽  
Vol 25 (11) ◽  
pp. 1983-1997 ◽  
Author(s):  
I. Wengatz ◽  
R. D. Schmid ◽  
S. Kreißig ◽  
C. Wittmann ◽  
B. Hock ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Desorption ◽  
Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Laser Desorption Ionization ◽  
Uv Laser ◽  
Desorption Ionization ◽  
Hapten Density

The Influence of Arsenic Flux in the Defect Structure of MBE Deposited GaAs and Ga1−xAlxAs

1988 ◽  
Vol 126 ◽  
Author(s):  
Z. Hatzopoulos ◽  
G. Kiriakidis ◽  
A. Georgacilas ◽  
N. Roditis ◽  
A. Christou
Keyword(s):  
Substrate Temperature ◽  
Thermal Desorption ◽  
Defect Structure ◽  
Defect Density ◽  
Pressure Ratio ◽  
Laser Desorption ◽  
Preparation Process ◽  
Uv Laser ◽  
Substrate Preparation ◽  
Optimum Pressure

ABSTRACTThe dependence of the density of defects on the pressure ratio PAs/PGa and on the substrate temperature has been studied on a series of GaAs and GaAlAs samples prepared by MBE. Samples have also been desorbed prior to the MBE deposition by UV laser and the density of defects have been compared with the density of defects obtained in samples where thermal desorption occured. Optimum pressure ratios PAs/GPa and growth temperatures have been found for both GaAs and GaAlAs for minimum defect density. It is shown that insitu laser desorption, prior to MBE deposition is a feasible technique for attaining MBE structures with a low defect density, thus simplifying the substrate preparation process.

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