کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10559009 | 969204 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantum efficiency improvement of a cesium based resonance fluorescence detector by helium-induced collisional excitation energy transfer
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Quantum efficiency improvement of a cesium based resonance fluorescence detector (RFD) was achieved by enhancing the transfer in a particular channel of the RFD excitation scheme with noble gas-induced collisional excitation energy transfer (CEET). The influence of Cs-Ar and Cs-He collisional mixing between the 6D and 7P states in cesium on the quantum efficiency of the 6S â 6D â 7P â 6S excitation scheme was investigated by fluorescence measurements at relevant transitions. Ar-induced CEET was found to have little effect on the fluorescence response and quantum efficiency of the Cs RFD excitation scheme. However, a 35 fold quantum efficiency increase in the cesium resonance fluorescence detector response at only moderate He pressures was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 60, Issue 6, 15 July 2005, Pages 765-774
Journal: Spectrochimica Acta Part B: Atomic Spectroscopy - Volume 60, Issue 6, 15 July 2005, Pages 765-774
نویسندگان
Tiffany L. Correll, Vlasta Horvatic, Nicoló Omenetto, Cedomil Vadla, James D. Winefordner,