Design and characterization of a linear quadrupole ion trap for high-resolution Coulomb-crystal time-of-flight mass spectrometry

EPJ Techniques and Instrumentation

Table 1 TOF post-ejection-acceleration results for Ca ⁺,CaO ⁺ and CaOH ⁺ ions

Ion species	Optimal acceleration	Time of flight	FWHM / ns	mass resolution	Expt. mass m/u	Exact mass
	delay Δ t/ μs	t/ μs		m/Δ m		m/u
Ca ⁺	0.450	5.091	2.9	878	-	39.963
CaO ⁺	0.540	6.023	4.5	669	55.93(11)	55.958
CaOH ⁺	0.546	6.082	4.2	724	57.04(10)	56.965