摘要:
日前,VishayIntertechnology, Inc.(NYSE股市代号:VSH)宣布,公司将为设计人员提供符合IrDA?标准的红外(IR)收发器模块——TFBR4650,这款新器件采用标准6.8mm x 2.8mm x 1.6mm封装。Vishay Semiconductor的TFBR4650完全可以直接替代其他厂商的器件。在竞品停产的情况下,这种直接替换可避免任何重新设计PCB。
Physics and Technology Department al-Farabi Kazakh National University Almaty Republic of KazakhstanNational Nanotechnology Laboratory of Open Type al-Farabi Kazakh National University Almaty Republic of Kazakhstan
摘要:
We have written, optimized and tested a C/C++ project designed to simulate a CBCT experiment with an arbitrary shaped and structured three dimensional radiological phantom with high resolution and precision. This phantom was generated and later used to simulate the recording of the multiple cone beam projections under successive rotations of the coupled source and detector around it. This radiological phantom can be used to generate projections in the various testing chambers conditions and configurations including the mammography case. The synthesized projections were used to reconstruct the internal structure of the phantom with FDK algorithm. Our simulation code is also able to accept an arbitrary set of projections from other simulation software or from the real computer tomography setup. The simulation code includes various filtering techniques and has been hardware accelerated using the OpenMP directives.