Detector for time-of-flight mass-spectrometers with low timing e

Details Detector for time-of-flight mass-spectrometers with low timing e Detector for time-of-flight mass-spectrometers with low timing e

1994-07-01

1997-06-10

Berman, Jack I.

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250397, H01J 4940

Patent

active

056378696

ABSTRACT:
Ions passing through inhomogeneous electric fields in the detector of a time-of-flight mass-spectrometer may need different times on different paths(11) between the entrance aperture and the ion-electron conversion surface(3). These errors in flight time can be reduced by properly deforming the conversion surface(3).

REFERENCES:
patent: 4472631 (1984-09-01), Enke et al.
patent: 5160840 (1992-11-01), Vestal
P. Steffens, E. Niehuis, T. Friese, D. Greifendorf & A. Benninghoven, A time-of-flight mass spectrometer for static SIMS applications, J. Vac. Sci. Technol. a 3(3), pp. 1322-1325 (1985).
E.R. Williams, L. Fang & R.N. Zare, Surface induced dissociation for tandem time-of-flight mass spectromtry, International Journal of Mass Spectrometery and Ion Processes, 123 (1993) 233-241.
W.A. deHeer & P. Milani, Large ion vol. time-of-flight mass spectrometer with position -and velocity-sensitive detection capabilities for cluster beams, Rev. Sci, Instrum. 62(3), Mar. 1991, pp. 670-677.
M.M. Wolf & W.E. Stephens, A Pulsed Mass Spectrometer with Time Dispersion, Rev. Sci. Instr. 24 (1953) pp. 616-617.
M.D. Burrows, S.R. Ryan, W.E. Lamb, Jr. & L.C. McIntyre, Jr., Mass filter and focusing ion detector for use with time-of-flight velocity distribution measurments, Rev. Sci. Instrum. 50(10), Oct. 1979, pp. 1278-1284.

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