Calibration of a liquid xenon detector with 83Krm

We report the preparation of a Kr-83(m) source and its use in calibrating a liquid xenon detector. Kr-83(m) atoms were produced through the decay of Rb-83 and introduced into liquid xenon. Decaying Kr-83(m) nuclei were detected through liquid xenon scintillation. Conversion electrons with energies of 9.4 and 32.1 keV from the decay of Kr-83(m) were observed. This calibration source will allow the characterization of the response of noble liquid detectors at low energies. Kr-83(m) may also be useful for measuring fluid flow dynamics, both to understand purification in noble liquid-based particle detectors, as well as for studies of classical and quantum turbulence in superfluid helium.