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Researching and Designing a Sample Heater for Beam Line 6-2c

Researching and Designing a Sample Heater for Beam Line 6-2c. Veronica Policht Johanna Nelson, Mentor Office of Science, SULI SLAC National Accelerator Laboratory. Facilities: Beam Line 6-2c. Schematic of the Transmission X-ray Microscope optics.

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Researching and Designing a Sample Heater for Beam Line 6-2c

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  1. Researching and Designing a Sample Heater for Beam Line 6-2c Veronica Policht Johanna Nelson, Mentor Office of Science, SULI SLAC National Accelerator Laboratory

  2. Facilities: Beam Line 6-2c Schematic of the Transmission X-ray Microscope optics G.J. Nelson, et al., 2011, AIP, vol. 98, p. 173109

  3. Problem: Why Sample Heater? • Biological & chemical events occur at temperatures higher than room temperature (RT) • Human body temperature: 37.0 °C (RT is 20-25 °C) • In situ conditions for some reactions • Material morphology & behavior at elevated temperatures • Material stress and failure Implementing a sample heater for TXM imaging broadens the temperature range a sample can be observed in, making the possible sample conditions more dynamic.

  4. Sample Heaters: Desired Characteristics • In terms of heat character: • Controllable • Confined • Measureable • Perform between/up to 50-500 °C • Heater apparatus: • Removable • Size considerations • Adaptable to several sample types • Ease of ability to manufacture and/or acquire necessary parts • Relatively Low Cost Available space

  5. Example Samples • Sealed capillary with catalytic(?) sample within • cylindrical • Battery cell sample, for imaging is placed between holderplates • Relatively flat Holderplates designed by Johanna Nelson for use in imaging battery samples at Beam Line 6-2c

  6. Method

  7. Method Infrared Heaters Resistive Heaters • Investigate various heating types • Research heating methods via scholarly databases • Investigate commercially available heaters; speak with engineers • Construct decision matrix based upon findings • Draft a preliminary 3D model

  8. Results: Summary Table

  9. Results 1st Choice: Kapton-based resistive 41 2nd Choice: Ceramic-based resistive 43

  10. Conclusion • Two solutions: • For flat and gently curved samples will implement a Kapton-based heater • Chose heater manufactured by OMEGA • For samples contained in a capillary will implement a ceramic-based cylindrical cylinder OMEGA Kapton Insulated Flexible Heater: www.omega.com Mellen Company Half-cylinder Ceramic Heater: www.mellencompany.com

  11. SketchUp: OMEGA Kapton Flexible Heater

  12. SketchUp: In-house Macor-Ceramic Heater

  13. Acknowledgments I would like to thank • Johanna Nelson • Joy Hayter, Mike Toney, & Sumohan Misra • er SLAC and SULI staff, and the Department of Energy

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