The Bloch simulator
The simulator is used to explore fundamental aspects of MRI such as precession, resonance, excitation, inhomogeneity and relaxation. Important concepts such as rotating frames, weightings, spoilers, spin-echoes, stimulated echoes and driven equilibrium can also be demonstrated using the program. Finally, the fundamentals of MR imaging can be shown, i.e. how the similarity between induced phase roll patterns and the structure of the imaged object is reflected in the MR signal. Some applications are documented at YouTube, and others here.
The Bloch simulator was written for educational purposes by Lars G. Hanson.
Click on the image to start the simulator
The simulator is useful during lectures for both technical and non-technical students (physicists, biomedical engineers, chemists, radiographers, MDs,…). It has also proven useful for student exercises. Examples are given on this website and in the software documentation which is distributed with the software (choose “Help” and “Challenges”).
This free educational MRI and NMR sofware executes on any PC without installation of software. Click to immediately try it or watch a YouTube introduction to the software. Scroll down for information and software demonstrations.
Bloch Simulator Introduction
Downloads
You can run the web version directly from here. However, you can also easily download a copy to put on your computer’s Desktop, for example. You can also download it as an Android app.
Links to related resources
- Educational Material
- Videos
- Classical and Quantum Explanation of MRI
- Bloch and imaging simulators: JEMRIS, Odin, MRISIMUL, SpinDrops
