xHREM^TM: HREM Simulation Suite

New Version (v4.6) is available now for WinHREM! (MacHREM version will come soon.)
The GPU (NVIDIA) version (v5.0) has been pre-released for WinHREM! (see below)

xHREM^TM (WinHREM^TM/MacHREM^TM) is a suite of the high-resolution electron microscope (HREM) simulation programs that will run under both Windows and Mac OS. The suite is composed of xHREM to simulate high-resolution Transmission Electron Microscope (HRTEM) images and the two options for Convergent Beam Electron Diffraction (CBED) and Scanning Transmission Electron Microscope (STEM), respectively. Please consult each catalog listed below for more information.

Flier/Specifications

• xHREM (FFT-Multislice Simulation Suite)
  • xHREM: HRTEM Image Simulation
  • STEM Extension: STEM Image Simulation
  • CBED Extension: Coherent CBED Simulation

Manual (PDF format)

• xHREM: HRTEM Image Simulation
• STEM Extension: STEM Image Simulation
• CBED Extension: Coherent CBED Simulation
• Q and A

References and Technical Notes

• K. Ishizuka and N. Uyeda: A New Theoretical and Practical Approach to the Multislice Method, Acta Cryst. A33 (1977) 740.
• K. Ishizuka: Contrast Transfer of Crystal Images in TEM, Ultramicroscopy 5 (1980) 55.
• K. Ishizuka: A practical approach for STEM image simulation based on the FFT multislice method, Ultramicroscopy 90 (2002) 71-83.
• K. Ishizuka: Multislice Formula for Inclined Illumination, Acta Cryst. A38 (1982) 773-779.
• K. Ishizuka: Prospects of atomic resolution imaging with an aberration-corrected STEM, J. Electron Microsc. 50 (2001) 291-305.

Download

Commercial Programs (Licensed Programs)

You have to purchase a license (hardware key) to run this program.
Please send your price enquiry to support@hremresearch.com.

• HREM Simulation Suite (32bit/64bit) v4.6.1      Windows
  (xHREM, CBED Extenstion and STEM Extenstion)
• STEM Extension Cluster (STEM Extenstion Cluster 32/64bit version)
  A separate license is required for each node PC.
• User Key Driver / Remote Update System (RUS)
  User key is required for commercial programs

New Features

• xHREM at v3.6 (Oct. 2011): see the details
• STEM Extension v4.4: Second annular detector (Nov. 2018)
  You can calculate at the same time two images from annular detectors, such as HAADF and ABF images, or HAADF and LAADF images.
• STEM Extension v4.6: DPC signal simulation (Feb. 2021)
  Differential Phase Contrast (DPC) signal can be simulated with this version. The DPC signal can be integrated to give a phase distribution by using the qDPC plug-in for DigitalMicroscope.
• STEM Extension v5.0 beta (Feb. 2021)
  We have made the STEM Extension compatible with the NVIDIA GPU at this version. When we use a single GPU, STEM calculation will be accelerated a few ten times compared with a single core of the CPU. Although our xHREM will run on a multi-core CPU, almost ten times acceleration can be attained with a single GPU. Furthermore, our GPU version will run with multi GPUs.
  NOTE: This STEM Extension requires a license valid for v5.0 (the upcoming version). If you obtain the message “Feature not found,” then you have to update the license.
  STEM Extension v5.0 ReadMe
  STEM Extension v5.0 bata

Previous Version

• HREM Simulation Suite (32bit/64bit) v4.6.0      Windows
  (xHREM, CBED Extenstion and STEM Extenstion)

• HREM Simulation Suite (32bit/64bit) v4.5.0      Windows      MacOS
  (xHREM, CBED Extenstion and STEM Extenstion)

Free Programs/Utilities

• ModelView (3D Atomic Model Viewer)      Windows      MacOS
• CTF (TEM Contrast Transfer Function Display)      Windows      MacOS