کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1676498 | 1518101 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Improvement of the inlet system for the spray-jet technique for use in spectroscopic studies and molecular deposition Improvement of the inlet system for the spray-jet technique for use in spectroscopic studies and molecular deposition](/preview/png/1676498.png)
We previously developed a molecular beam apparatus with a spray-jet technique in order to produce a molecular beam of non-volatile molecules in vacuum from the sprayed mist of a sample solution. The apparatus is for use in spectroscopic studies or a means of molecular deposition. The spray-jet inlet system consisted of an ultrasonic nebulizer, an inlet chamber and a pulsed nozzle. In the present paper, further improvements to the spray-jet inlet system are reported. The main improvement is the introduction of a pneumatic nebulizer to replace the previous ultrasonic nebulizer. The efficiency of molecular beam generation was evaluated on the basis of the signal intensity of the resonantly enhanced multiphoton ionization time-of-flight mass (REMPI-TOFMS) spectra for a Rhodamine B/methanol solution and the amount of sample consumed. The introduction of the pneumatic nebulizer increased the efficiency by a factor of 20.
Journal: Thin Solid Films - Volume 499, Issues 1–2, 21 March 2006, Pages 44–48