کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8175341 | 1526359 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The resolution of the tof-backscattering spectrometer OSIRIS: Monte Carlo simulations and analytical calculations
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The resolution of the tof-backscattering spectrometer OSIRIS: Monte Carlo simulations and analytical calculations The resolution of the tof-backscattering spectrometer OSIRIS: Monte Carlo simulations and analytical calculations](/preview/png/8175341.png)
چکیده انگلیسی
The energy resolution of an indirect time of flight (tof) spectrometer is determined mainly by the pulse shape of the incoming pulse and the contribution of the crystal analyser. We performed extensive Monte Carlo simulations for the indirect near-backscattering spectrometer OSIRIS utilising the McStas neutron ray-traycing package. The simulations are accompanied by analytical calculations for the energy resolution. From simulation and calculation an excellent description for the width of the line is achieved for the PG002 and PG004 energy setting. The simulations and calculations reveal that the secondary spectrometer and hence the analyser geometry is the dominating term for the energy resolution at zero energy transfer. The remaining differences in the lineshape can be traced to a not perfectly modeled hydrogen moderator. The simulations and calculations predict a superb energy resolution of less than 100 μeV at an energy transfer of 15 meV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 767, 11 December 2014, Pages 426-432
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 767, 11 December 2014, Pages 426-432
نویسندگان
F. Demmel, K. Pokhilchuk,