dc.creator Ronningen, T. J. en_US dc.creator De Lucia, Frank C. en_US dc.date.accessioned 2006-06-15T20:25:43Z dc.date.available 2006-06-15T20:25:43Z dc.date.issued 2002 en_US dc.identifier 2002-RJ-04 en_US dc.identifier.uri http://hdl.handle.net/1811/20532 dc.description Author Institution: Department of Physics, The Ohio State University en_US dc.description.abstract Below 80 K the pressure broadening cross section for HDO-He collisions is predicted to be less than 10 ${\AA}^{2}$. This is quite small for a microwave transition and suggests that the line may, at low pressures, narrow with increasing pressure (Dicke narrowing). We have employed collisional cooling to measure the lineshape of the $HDO 1_{01} - 11_{11}$ transition between 2 and 80 K. Initial results for the high pressure data indicate that the theoretical predictions for the cross section are valid. A more detailed analysis that investigates non-Lorentzian contributions to the lineshape will be discussed. en_US dc.format.extent 126887 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title HELIUM PRESSURE BROADENING OF HDO BETWEEN 2 AND 80 K en_US dc.type article en_US
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