Table 2: Measured radiative lifetimes for ten Cr II levels in the 3d4(5D)4p configuration.

Term		 Energy Observed Exc. laser Exp. lifetimes
    fluorescence conversion Our work Prev. work
  (cm-1) $\lambda$ $_{ \rm air}$ (Å) schemea (ns) (ns)

4F3/2		 51 485.15 3118.646 $2\omega$ 4.2(4)  
4F5/2 51 669.48 3120.359 $2\omega$ 4.1(4)  
4F7/2 51 788.88 3124.973 $2\omega$ 4.1(3)  
4F9/2 51 942.70 3132.053 $2\omega$ 4.1(3)  
4D1/2 54 418.02 2873.806 $3\omega+S$ 4.3(4)  
4D3/2 54 499.52 2867.089 $3\omega+S$ 4.3(4)  
4D5/2 54 625.62 2870.432 $3\omega+S$ 4.3(4)  
4D7/2 54 784.48 2875.987 $3\omega+S$ 4.3(4) 4.20(18)b
6P5/2 48 491.10 2762.589 $3\omega$ 2.3(2) 2.45(8)b, 2.5(1)c, 2.4(2)d
6P7/2 48 632.12 2766.531 $3\omega$ 2.4(2) 2.4(13)b, 2.5(1)c, 2.4(2)d
a $2\omega$ - frequency doubling, $3\omega$ - frequency tripling, S - Stoke shift.
b Pinnington et al. (1993).
c Schade et al. (1990).
d Bergeson & Lawler (1993).

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