کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5141784 | 1379091 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Complete spectroscopic picture of concealed explosives: Laser induced Raman versus infrared
ترجمه فارسی عنوان
تصویر طیفی کامل از مواد منفجره پنهان: لیزر باعث رامان در برابر مادون قرمز است
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
There is a great advantage of any explosive detection technique which does not require direct physical contact with explosive material and also being suitable for standoff detection; such technique is Raman spectroscopy. This paper reports on tailored Raman with real-time and standoff detection capabilities of concealed explosives. It was possible to generate and spectrally resolve Stokes-Raman scattering for the three main explosive classes including: Nitro compounds, Nitramines, and Nitric esters. Induced Stokes-Raman spectra were compared to infrared absorptions using FTIR spectrometer. The two vibrational spectroscopic techniques were, in fact, complementary. Molecular vibrations with strong absorption in infrared (those involving strong change in dipole moments) were found to be weak emitter in Raman. The tailored-Raman offered instant detection, high sensitivity, and standoff detection capabilities; almost all explosive classes exhibited characteristic fingerprint spectra with intense peaks. Raman is one of the up and coming technologies for instantaneous detection of concealed explosives.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: TrAC Trends in Analytical Chemistry - Volume 85, Part B, December 2016, Pages 34-41
Journal: TrAC Trends in Analytical Chemistry - Volume 85, Part B, December 2016, Pages 34-41
نویسندگان
Sherif Elbasuney, Ashraf F. El-Sherif,