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آشکارسازی غیرمخرب پیش ماده انفجاری آمونیوم نیترات پنهان شده در پوششهای پلیمری توسط طیف‌سنجی رامان عمیق | ||
| شیمى کاربردى روز | ||
| دوره 18، شماره 66، فروردین 1402، صفحه 187-206 اصل مقاله (1.2 M) | ||
| نوع مقاله: مقاله علمی پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22075/chem.2022.26157.2051 | ||
| نویسندگان | ||
| مرضیه همتی فارسانی؛ سیدمحمدرضا دربانی* ؛ ابوالحسن مبشری | ||
| مجتمع دانشگاهی علوم کاربردی، دانشگاه صنعتی مالک اشتر، ایران | ||
| تاریخ دریافت: 16 بهمن 1400، تاریخ بازنگری: 29 مرداد 1401، تاریخ پذیرش: 01 شهریور 1401 | ||
| چکیده | ||
| افزایش جنایت‌های سازمان یافته و فعالیت‌های تروریستی، آشکارسازی غیرمخرب مواد انفجاری پنهان شده در پوشش را به یکی از اولویت‌های دفاعی تبدیل نموده است. در این پژوهش آشکارسازی آمونیوم نیترات پنهان شده در پوششهای پلیمری متداولی مانند پلی‌پروپیلن و پلی‌اتیلن چگالی بالا با استفاده از روش‌های مختلف رامان عمیق همانند طیف‌سنجی رامان جابجایی فضایی(SORS)، طیف‌سنجی رامان تفکیک زمانی(TRRS) و ترکیب این دو روش به نام طیف‌سنجی رامان جابجایی فضایی تفکیک زمانی (TR-SORS) انجام شده است. از آنجایی‌که توانایی آشکارسازی مواد منفجره از فاصله ایمن یک مساله حیاتی در پدافند دفاعی است، چیدمان راه دور رامان عمیق در فاصله 5 متر به‌منظور شناسایی آمونیوم نیترات در پوشش پلی اتیلن چگالی بالا برپا شده است. برای ارزیابی دقت عملکرد و همچنین بیان سنجه‌ای از درستی شناسایی کیفی انجام شده، در تمامی طیف‌های ثبت شده، نسبت SORS به عنوان معیار درنظر گرفته شده است. این مقدار در روش TR-SORS برای آمونیوم نیترات در پوشش پلی‌پروپیلن در فاصله نزدیک، 3/3 و در پلی‌اتیلن چگالی بالا در فاصله نزدیک و دور بترتیب مقادیر 5/11 و 5/3 بدست آمد. نتایج پژوهش نشان داد که تلفیق روش‌های طیف‌سنجی رامان جابجایی فضایی و طیف‌سنجی رامان تفکیک زمانی باعث بهبود نسبت SORS خواهد شد که این مساله در شناسایی بسته‌های مشکوک بدون آسیب زدن به بسته‌بندی و کاربر حائز اهمیت است. | ||
| کلیدواژه‌ها | ||
| طیف‌سنجی رامان عمیق؛ جابجایی فضایی؛ تفکیک زمانی؛ آمونیوم نیترات؛ پلی‌اتیلن چگالی بالا؛ پلی‌پروپیلن | ||
| عنوان مقاله [English] | ||
| Non-invasive detection of pre explosive Ammonium Nitrate concealed in polymer containers by Deep Raman | ||
| نویسندگان [English] | ||
| Marziyeh Hemati Farsani؛ Seyyed Mohammad Reza Darbani؛ Abolhasan Mobashery | ||
| Faculty of Applied Science, Malek Ashtar University of Technology, Iran | ||
| چکیده [English] | ||
| Non-invasive detection of explosive materials concealed in the container is became one of the defense priorities, due to the increasing of organized crimes and terrorist activities. In this research, detection of ammonium nitrate(AN) concealed in common polymer containers such as polypropylene(PP) and high density polyethylene (HDPE) using different Deep Raman techniques such as spatial offset Raman spectroscopy (SORS), time-resolved Raman spectroscopy (TRRS) and the integration of these two techniques is known as time resolved spatially offset Raman spectroscopy(TR-SORS) has been performed. Since the ability to detection of explosives at a safe distance is a critical issue in the defense, a stand-off Deep Raman set-up at a distance of 5m was set up to detect AN concealed in HDPE container. The SORS ratio has been considered as a criterion, to evaluate the accuracy of the performance and to express a measure of the correctness of the qualitative identification, in all recorded spectra. This value in the TR-SORS technique for detection of AN in the PP container in the near distance, HDPE container in the near and far distance was 3.3, 11.5, and 3.5, respectively. The results of research showed that the integration of spatial offset Raman spectroscopy and time-resolved Raman spectroscopy will improve the SORS ratio, which is important in the safe identification of suspicious packages without harming the package and the user. | ||
| کلیدواژه‌ها [English] | ||
| Deep Raman Spectroscopy, Spatial Offset, Time Resolved, Ammonium nitrate, High Density Polyethylene (HDPE), Polypropylene (PP) | ||
| مراجع | ||
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