@article {4779,
	title = {Observation of higher order quadrupole excitation frequencies in a linear ion trap},
	journal = {Journal of the American Society for Mass Spectrometry},
	volume = {11},
	number = {11},
	year = {2000},
	note = {ISI Document Delivery No.: 367WRTimes Cited: 17Cited Reference Count: 13},
	month = {Nov},
	pages = {1016-1022},
	type = {Article},
	abstract = {{The resonant frequencies for quadrupole excitation of ions confined with a buffer gas in a linear quadrupole ion trap with Mathieu parameters a = 0 and q approximate to 0.36 have been measured. The resonances are predicted to occur at angular frequencies omega (K)(n) given by omega (K)(n) = (Omega /K)\n + beta\ without the presence of a buffer gas where Omega is the angular frequency of the trapping radio frequency},
	keywords = {CLOUD, PAUL TRAP, RESONANCE EXCITATION, SIMULATION},
	isbn = {1044-0305},
	url = {<Go to ISI>://000090084900011},
	author = {Collings, B. A. and Douglas, D. J.}
}
