Blanking Circuit for a Magnetic Electron Multiplier in a Time‐of‐Flight Mass Spectrometer

1968 ◽  
Vol 39 (2) ◽  
pp. 169-170 ◽  
Author(s):  
Joseph R. Haumann ◽  
Martin H. Studier
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Electron Multiplier ◽  
Flight Mass Spectrometer ◽  
Magnetic Electron

Source and Multiplier Modifications of a Time-of-Flight Mass Spectrometer to Increase Sensitivity

1964 ◽  
Vol 18 (5) ◽  
pp. 134-136 ◽  
Author(s):  
W. K. Rohwedder ◽  
E. Selke ◽  
E. D. Bitner
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Gas Chromatograph ◽  
Electron Multiplier ◽  
Carrier Gas ◽  
Flight Mass Spectrometer ◽  
Front End ◽  
Ionization Mode ◽  
Magnetic Electron ◽  
Instrument Sensitivity

The usefulness of a gas chromatograph and a mass spectrometer in tandem to analyze odor constituents is limited by the sensitivity of the mass spectrometer and by the large amount of helium carrier gas compared with the amount of sample A time-of-flight mass spectrometer was fitted with a tightly enclosed source and operated in a continuous ionization mode to increase instrument sensitivity A gate pulse was applied to the front end of the magnetic electron multiplier to eliminate the electrons due to the helium pulse before they reached the multiplier dynode strips This procedure prevented saturation of the multiplier by the helium carrier gas.

A TIME-OF-FLIGHT MASS SPECTROMETER FOR SIMS AND FIELD IONISED NEUTRAL ANALYSIS USING A PULSED LMIS

1987 ◽  
Vol 48 (C6) ◽  
pp. C6-577-C6-582 ◽  
Author(s):  
A. R. Waugh ◽  
D. R. Kingham ◽  
C. H. Richardson ◽  
M. Goff
Keyword(s):  
Mass Spectrometer ◽  
Time Of Flight ◽  
Flight Mass Spectrometer

Lumas-30 time-of-flight mass spectrometer with pulsed glow discharge for direct determination of nitrogen in steel

2011 ◽  
Vol 66 (14) ◽  
pp. 1411-1416 ◽  
Author(s):  
A. A. Ganeev ◽  
A. R. Gubal’ ◽  
V. I. Mosichev ◽  
N. V. Pershin ◽  
S. N. Petrov ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Mass Spectrometer ◽  
Time Of Flight ◽  
Direct Determination ◽  
Pulsed Glow Discharge ◽  
Flight Mass Spectrometer

Vacuum Ultraviolet Single-Photon Ionization Time-of-Flight Mass Spectrometer

2011 ◽  
Vol 39 (10) ◽  
pp. 1470-1475 ◽  
Author(s):  
Guo-Bin TAN ◽  
Wei GAO ◽  
Zheng-Xu HUANG ◽  
Yi HONG ◽  
Zhong FU ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Vacuum Ultraviolet ◽  
Single Photon ◽  
Time Of Flight ◽  
Ionization Time ◽  
Single Photon Ionization ◽  
Flight Mass Spectrometer ◽  
Photon Ionization
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