Krypton Tagging Velocimetry (KTV) is implemented in the flow immediately following the incident shock wave in the Stevens Shock Tube. This is motivated by the long-term goal of using KTV to measure velocity in large-scale impulse facilities. Two example cases are presented in 99% N_2/1% Kr at incident shock Mach numbers of 2.86 and 2.94. The velocities as measured by KTV are, in general, higher than those calculated from the shock-speed measurements. The discrepancy is most likely due to the misalignment of splitter plate installed in the shock tube (an expansion fan likely accelerated the flow). A new excitation scheme for KTV is used that results in a higher SNR as compared to previous work. A justification of the alternate scheme is presented via a three energy level model. An overview of the shock tube is given, and a model predicting the non-equilibrium thermodynamic state of the gas immediately following the incident shock is presented.
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