کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5492991 1526259 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conical slit and conventional X-ray sources: Challenging steps for calcium spots detection
ترجمه فارسی عنوان
شکاف های مخروطی و منابع اشعه ایکس معمولی: مراحل چالش برای تشخیص لکه های کلسیم
کلمات کلیدی
شکاف مخروطی، ریزش مو تشخیص دیفرانسیل،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
چکیده انگلیسی
An easy and simple to build conical slit (CS) was designed and tested, in a sample model approach, in order to check its possible use to detect Calcium Oxalate (CO) breast microcalcifications (MC) using conventional X-ray sources. A single-cone conical slit (SCCS) and a multi-cones conical slit (MCCS) were designed and constructed. Also, the CS apertures were calculated in order to maximize the diffracted intensity, while also providing sufficient angular resolution. The detection was done by scintillation detector and by films. The alignment of SCCS and MCCS is straightforward. The SCCS and MCCS capability in resolving CO diffraction cones were tested under different background scattering condition. For this, composite samples made up of CO embedded in different soft materials (paraffin wax or polypropylene or polyamide) have been explored. SCCS showed some limitation especially due to the superposition with low order CO powder diffraction cones and diffraction cones arising from paraffin wax and polypropylene. On the other hand MCCS showed to be efficient to resolve the CO diffraction cones in any case. MCCS shall be useful for next step tests with real in-vitro breast samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 867, 21 September 2017, Pages 171-181
نویسندگان
, , , ,