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Table 1 Characteristics of the molecular beam of OH radicals generated by discharging H2O in different carrier gases

From: Optimizing the density of Stark decelerated radicals at low final velocities: a tutorial review

Carrier gas Mean velocity Velocity spread Ground state population Density
  (m/s) (FWHM) (%) (%) (×1011/cm3)
Ar 670.5 ± 6.3 9.8 ± 0.5 >98 3.0 ± 0.6
Kr 483.5 ± 5.0 13.1 ± 0.6 >98 2.9 ± 0.6
Xe 385.1 ± 4.0 9.2 ± 0.8 >98 0.9 ± 0.2
  1. From Ref. [42]