1 / 7

Sample Update (Al 2 O 3 & MgO)

Sample Update (Al 2 O 3 & MgO). S. Jokela, I. Veryovkin, A. Zinovev. Al 2 O 3. S1 – 5.5nm, S3 – 11.3nm. Al 2 O 3. Selected Data Averaged However, long-term monitoring or high-fluence electron exposure will determine the final values of these curves. S1 – 5.5nm, S3 – 11.3nm. MgO.

harrismark
Download Presentation

Sample Update (Al 2 O 3 & MgO)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Sample Update (Al2O3 & MgO) S. Jokela, I. Veryovkin, A. Zinovev

  2. Al2O3 S1 – 5.5nm, S3 – 11.3nm

  3. Al2O3 • Selected Data Averaged • However, long-term monitoring or high-fluence electron exposure will determine the final values of these curves. S1 – 5.5nm, S3 – 11.3nm

  4. MgO S5 (left) – 7.2nm, S9 (right) – 14.4nm

  5. MgO • Selected Data Averaged • Not nearly as large of a difference between samples as was seen in the Al2O3 samples. S5 – 7.2nm, S9 – 14.4nm

  6. Overall Comparison • Tungsten coating doesn’t seem to affect results in a significantly helpful way • MgO is clearly a better emitter, especially for higher primary electron energies. • With the amount of variation seen in prior samples, MgO is comparable to Al2O3 for lower primary electron energies.

  7. Future Work • MCP Godparent Review • I have 4 more samples to test (2×Al2O3 and 2×MgO) • Will continue working on system to get electron gun working for large-area, high-fluence, electron exposure. • May have access to thin-film diamond samples

More Related