Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Review of Scientific Instruments
65 (1994), S. 3344-3353
ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A modified version of the classic Wiley–McLaren time-of-flight mass spectrometer (TOFMS) is presented here. Owing to a second-order compensation of the initial position effect, a mass resolution m/δm higher than 2000 is obtained with large ion volumes, of the order of 0.2 cm3 for Na+55 (1265 a.m.u.). Sodium clusters Na+n with n up to 530 ((approximately-equal-to)12200 a.m.u.) are separated. The spectrometer can be used for the analysis of ionized clusters in a mass range from 1 to about 20000 a.m.u. as well as for the measurement of the kinetic energy of molecular fragments after a Coulomb explosion of a molecule. The performance of this spectrometer is demonstrated with sodium clusters and molecules.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1144571
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