Publication: Cold 52Cr elastic and inelastic collision-rate determination using evaporative cooling analysis
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Date
2007
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American Physical Society (APS)
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Nguyen, Scott V., Robert deCarvalho, and John M. Doyle. 2007. “Cold 52Cr Elastic and Inelastic Collision-Rate Determination Using Evaporative Cooling Analysis .” Physical Review A 75 (6) (June 15). doi:10.1103/physreva.75.062706.
Abstract
Elastic and inelastic collision-rate constants of 52Cr in the temperature range of 20 mK to 1 K are inferred from the evaporative cooling of buffer gas loaded atomic chromium. Using a model that describes the dynamics of the trapped chromium cloud during evaporation, we find gel= 2.15 +2.5,−1.2 10−10 cm3 / s and gin = 1.36 +1.2,−0.7 10−12 cm3 / s, consistent with theory but in disagreement with previously reported measurements.
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