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Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages
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Rotation axis demultiplexer enabling simultaneous computed tomography of multiple samples.

Pavel Trtik1, Fabian Geiger2, Jan Hovind1

  • 1Neutron Imaging and Activation Group, Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.

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|May 10, 2016
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Summary

This study introduces POLYTOM, a device enabling simultaneous tomographic imaging on three axes. This innovation significantly reduces sample investigation time by a factor of three, making it ideal for low-flux sources.

Keywords:
Computed tomographycomputed tomgraphymultiaxial simultaneous tomographyneutron imaging

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Area of Science:

  • * Scientific instrumentation
  • * Materials science
  • * Imaging technologies

Background:

  • * Traditional tomographic imaging often requires sequential sample analysis.
  • * Optimizing sample throughput is crucial for efficient research, especially at low-flux sources.
  • * Existing methods can be time-consuming for multiple sample investigations.

Purpose of the Study:

  • * To present a novel device for simultaneous multi-axis sample rotation in tomographic imaging.
  • * To demonstrate the efficiency gains offered by the rotation axis demultiplexer (POLYTOM).
  • * To explore the applicability of POLYTOM for various imaging techniques, including neutron and X-ray tomography.

Main Methods:

  • * Design and implementation of a rotation axis demultiplexer (POLYTOM) with anti-backlash gears.
  • * Integration of the device onto a standard sample rotation stage.
  • * Pilot experiments utilizing neutron tomographic imaging to validate the device's performance.

Main Results:

  • * Successful transformation of a single input rotation axis into two additional parallel vertical axes.
  • * Achieved a threefold reduction in acquisition time for multiple sample tomographic investigations.
  • * Demonstrated the device's capability for simultaneous imaging of multiple samples.

Conclusions:

  • * POLYTOM offers a cost-effective solution for increasing sample throughput in tomographic imaging.
  • * The device is particularly beneficial for elongated samples and low-flux imaging sources like neutrons.
  • * POLYTOM has potential applications in various imaging modalities, including X-ray computed tomography.