تقرير
A fast and accurate computation method for reflective diffraction simulations
| العنوان: | A fast and accurate computation method for reflective diffraction simulations |
|---|---|
| المؤلفون: | Kudo, Shuhei, Yamamoto, Yusaku, Hoshi, Takeo |
| سنة النشر: | 2023 |
| المجموعة: | Computer Science Mathematics |
| مصطلحات موضوعية: | Mathematics - Numerical Analysis |
| الوصف: | We present a new computation method for simulating reflection high-energy electron diffraction and the total-reflection high-energy positron diffraction experiments. The two experiments are used commonly for the structural analysis of material surface. The present paper improves the conventional numerical method, the multi-slice method, for faster computation, since the present method avoids the matrix-eigenvalue solver for the computation of matrix exponentials and can adopt higher-order ordinary differential equation solvers. Moreover, we propose a high-performance implementation based on multi-thread parallelization and cache-reusable subroutines. In our tests, this new method performs up to 2,000 times faster than the conventional method. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2306.00271 |
| رقم الأكسشن: | edsarx.2306.00271 |
| قاعدة البيانات: | arXiv |
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