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A Linux/Xenomai Platform for High-Performance Magnetic Resonance...
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A Linux/Xenomai Platform for High-Performance Magnetic Resonance Scanners
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Copyright © Siemens AG 2009. All rights reserved.
Corporate Technology
A Linux/Xenomai Platform for
High-Performance Magnetic
Resonance Scanners
Jan Kiszka, Siemens AG, CT SE 2
Corporate Competence Center Embedded Linux
jan.kiszka@siemens.com

Slide 2
28.09.2009
© Siemens AG, Corporate TechnologyJan Kiszka, CT SE 2
Corporate Competence Center Embedded Linux
Contact
Oliver Fendt
Tel.: + 49 (89) 636 46033
Oliver.Fendt@siemens.com
Linux, is the ideal platform, which facilitates the cost effective
development of complex smart embedded devices. We
support you during the entire product life cycle in all activities
of embedded Linux development. Our embedded Linux team
members are internationally recognized and have extensive
product development experience.
Benefits
Maximum benefit from Linux in the specific project context:
robustness
cost reduction
time to market
Our Offer
Own publicly available & supported embedded Linux Distribution
Embedded Linux training
Consulting:
Support on legal issues
Platform strategy consulting
Development environment set up and maintenance
Development:
Kernel & driver development
Application development
Evaluation:
Open Source community interaction & quality assessment
Profiling and performance tests
Linux services covering the entire product life cycle
Training
Consulting
Prototyping,
development
Evaluation,
benchmarking
OSS - Support,
consulting
pre-product
phase
development
phase
test
phase
Basic know-how
Directed to target product
Direct responsibility for components
Support critical design decisions
maintenance
phase
Architecture, OSS-scanning, release notes, community feedback

Slide 3
28.09.2009
© Siemens AG, Corporate TechnologyJan Kiszka, CT SE 2
Agenda
Introduction MRI
MR scanners
Achitecture
Requirements
RT Platform selection
Xenomai experiences
Community contributions
Conclusion

Slide 4
28.09.2009
© Siemens AG, Corporate TechnologyJan Kiszka, CT SE 2
Magnetic Resonance Imaging (in a Nutshell)
Strong static magnetic field
Causes alignment of nuclei
in the body
Pulsed radio field
Disturbs alignment
Nuclei emit electromagnetic
signal when field is removed
Signal decay depends on
body tissue
Gradient field
Linear magnetic field variation
Generates echo signal too
Combination with RF field
enables tissue localization
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