We present a radio frequency (RF)/high voltage pulse generator designed to provide suitable waveforms for the operation of a planar multipole ion trap/time-of-flight mass spectrometer. Our generator supplies a RF signal to two pairs of trapping electrodes, allowing ions to be stored in between them. Subsequently, the RF is rapidly switched off and high voltage extraction pulses are applied to the trap electrodes in order to obtain a time-of-flight spectrum of the stored ions. The quenching of the RF and the extraction pulses are synchronized to the RF phase, ensuring well-defined ejection conditions.
REFERENCES
1.
U. J.
Lorenz
and T. R.
Rizzo
, “Planar multipole ion trap/time-of-flight mass spectrometer
,” Anal. Chem.
83
, 7895
–7901
(2011
).2.
S. M.
Michael
, M.
Chien
, and D. M.
Lubman
, “An ion trap storage time-of-flight mass-spectrometer
,” Rev. Sci. Instrum.
63
, 4277
–4284
(1992
).3.
R. M.
Jones
, D.
Gerlich
, and S. L.
Anderson
, “Simple radio-frequency power source for ion guides and ion traps
,” Rev. Sci. Instrum.
68
, 3357
–3362
(1997
).4.
R. M.
Jones
and S. L.
Anderson
, “Simplified radio-frequency generator for driving ion guides, traps, and other capacitive loads
,” Rev. Sci. Instrum.
71
, 4335
–4337
(2000
).5.
I.
Cermak
, “Compact radio-frequency power supply for ion and particle guides and traps
,” Rev. Sci. Instrum.
76
, 063302
(2005
).6.
P. B.
O’Connor
, C. E.
Costello
, and W. E.
Earle
, “A high voltage rf oscillator for driving multipole ion guides
,” J. Am. Soc. Mass. Spectrom.
13
, 1370
–1375
(2002
).7.
R.
Mathur
and P. B.
O’Connor
, “Design and implementation of a high power rf oscillator on a printed circuit board for multipole ion guides
,” Rev. Sci. Instrum.
77
, 114101
(2006
).8.
F.
Behlke
, “MOSFET-Hochspannungsschalter mit extrem kurzer Schaltzeit
,” patent DE3630775A1 (24 March 1988
).9.
R. E.
Continetti
, D. R.
Cyr
, and D. M.
Neumark
, “Fast 8-kv metal-oxide semiconductor field-effect transistor switch
,” Rev. Sci. Instrum.
63
, 1840
–1841
(1992
).10.
D.
Chambers
, L.
Grace
, and B.
Andresen
, “Development of an ion store time-of-flight mass spectrometer for the analysis of volatile compounds in air
,” Anal. Chem.
69
, 3780
–3790
(1997
).11.
J.
Rocher
, M.
Vedel
, and F.
Vedel
, “Well defined chopping of the Paul trap rf potential up to a 1.5 MHz frequency combined with a time-of-flight method
,” Int. J. Mass Spectrom.
181
, 173
–180
(1998
).12.
B. T.
Chang
and T. B.
Mitchell
, “Frequency stabilized radio-frequency generator for driving ion traps and other capacitive loads
,” Rev. Sci. Instrum.
77
, 063101
(2006
).© 2013 Euratom.
2013
Euratom
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