کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8250680 | 1533398 | 2016 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exclusive attributes of undoped poly (ethylene terephthalate) for alpha particle detection
ترجمه فارسی عنوان
ویژگی های منحصر به فرد پلی اتیلن تترفاتال غیر آهسته برای تشخیص ذرات آلفا
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کلمات کلیدی
پلی اتیلن ترفتالات پلیمر حلقه معطر مواد منفجره نابالغ، اموال اساسی، تشخیص ذرات آلفا،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
چکیده انگلیسی
Poly (ethylene terephthalate) (PET) is available worldwide and has a broad range of applications. However, its basic properties as a scintillation material that is undoped with fluorescent guest molecules are not completely known. Here, we optically characterise undoped PET for use in radiation detection. Light absorption is primarily below 350Â nm, with an emission maximum at 385Â nm. An effective refractive index, determined from the emission spectrum and the wavelength dependence of the refractive index, is 1.62, which is greater than that for the sodium D line (NDÂ =Â 1.57). The density of PET is 1.33Â g/cm3, and its stopping power for 1-MeV electrons is 1.72Â MeVÂ cm2/g. Distinct peaks generated by alpha particles from 210Pb and 241Am radioactive sources appear in PET light-yield distributions. The PET response to 5-6-MeV alpha particles is approximately one-eighth that for electrons. These results demonstrate that undoped PET has special attributes for alpha particle detection. This knowledge will enable better performance of radiation equipment based on PET and its blends with other aromatic ring polymers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Measurements - Volume 92, September 2016, Pages 54-58
Journal: Radiation Measurements - Volume 92, September 2016, Pages 54-58
نویسندگان
Hidehito Nakamura, Nobuhiro Sato, Hisashi Kitamura, Daisuke Maki, Yoshiyuki Shirakawa, Sentaro Takahashi,