Parametric study of the IRMPD of CF2HCl molecules with the 9P22 CO2laser line

✍ Scribed by I. Deac; V. Cosma; D. Silipas; L. Muresan; V. Tosa

• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 482 KB
• Volume: 51
• Category: Article
• ISSN: 0721-7269
• DOI: 10.1007/bf00405741

✦ Synopsis

The separation of 13 C by infrared multiple photon decomposition (IRMPD) of CF2HC1 has been parametrically studied in relation with some key parameters such as the laser fluence, the number of laser pulses, and the gas pressure. The process selectivity, the depletion of the 13C isotope in the residual gas, the relative amount of 13C separated per pulse, and the energy expenditure were determined as a function of the above mentioned parameters, and conclusions were drawn concerning the efficiency of the separation process. An isotopic selectivity of about 40 was obtained in the investigated range of pressure. At 10 Torr of pure CF2HC1, the 13 C depletion in the residual gas was 45% when only 300 laser pulses were used. A maximum amount of 4.6 x 10-10 kg 13C separated per pulse was obtained.