کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1829263 | 1027454 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new radiation detector made of multi-walled carbon nanotubes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report first results on a microstrip radiation detector made of multi-walled carbon nanotubes directly grown on a sapphire substrate between platinum electrodes. Signals induced in nanotubes by pulsed laser beams have been collected and analysed at three different wavelengths, 355, 532 and 1064 nm. Improvement of sensitivity towards UV wavelengths has been observed reflecting the shape of the absorbance spectrum of material. Signals clearly indicate the production of charges and the subsequent transport in the direction of the applied electric field. Measurement of the charge amount collected at different drain voltages as well as the detection efficiency are reported for each of the three wavelengths exploited.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 589, Issue 3, 15 May 2008, Pages 398–403
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 589, Issue 3, 15 May 2008, Pages 398–403
نویسندگان
A. Ambrosio, M. Ambrosio, G. Ambrosone, V. Carillo, U. Coscia, V. Grossi, P. Maddalena, M. Passacantando, E. Perillo, A. Raulo, S. Santucci,