کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1569168 | 1514257 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Post mortem analysis of a JET quartz microbalance system
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In the year 2001, a quartz microbalance system (QMB) was installed in the remote area of the inner JET divertor to investigate in situ material erosion and redeposition processes. When removed in 2004, the system was found to be coated all over with carbon deposits. The deposit on the quartz oscillator and the outer and inner housing was analysed by various methods, as SIMS (secondary ion mass spectroscopy), stylus depth profilometry, EPMA (electron probe microanalysis), TIPT (Tritium imaging plate technique) and colorimetry and compared to the frequency change of the quartz. The layer thickness was determined to 1.85 ± 0.1 μm in average on an area of 0.95 cm2 which has to be related to the equivalent of 1.77 Ã 10â4 g measured from the frequency change of 23 640 Hz. This corresponds to a carbon areal density of 9.3 Ã 1018 C atoms/cm2. Significant deposition was found also on the surfaces inside the QMB housing which can only be understood if reflection and low sticking is assumed for a high fraction of particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volumes 363â365, 15 June 2007, Pages 146-151
Journal: Journal of Nuclear Materials - Volumes 363â365, 15 June 2007, Pages 146-151
نویسندگان
H.G. Esser, V. Philipps, P. Wienhold, K. Sugiyama, A. Kreter, J.P. Coad, T. Tanabe, JET-EFDA Contributors JET-EFDA Contributors,