Document Type
Article
Journal/Book Title/Conference
Review of Scientific Instruments
Volume
91
Issue
3
Publisher
AIP Publishing LLC
Publication Date
3-2020
First Page
1
Last Page
9
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Abstract
We report the fabrication, characterization, and use of rubidium vapor dispensers based on highly oriented pyrolytic graphite (HOPG) intercalated with metallic rubidium. Compared to commercial chromate salt dispensers, these intercalated HOPG (IHOPG) dispensers hold an order of magnitude more rubidium in a similar volume, require less than one-fourth the heating power, and emit less than one-half as many impurities. Appropriate processing permits exposure of the IHOPG to atmosphere for over ninety minutes without any adverse effects. Intercalation of cesium, potassium, and lithium into HOPG has also been demonstrated in the literature, which suggests that IHOPG dispensers may also be made for those metals.
Recommended Citation
Kohn, Rudolph N. Jr.; Bigelow, Matthew S.; Spanjers, Mary; Stuhl, Benjamin K.; Kasch, Brian L.; Olson, Spencer E.; Imhof, Eric A.; Hostutler, David A.; and Squires, Matthew B., "Clean, Robust Alkali Sources by Intercalation Within Highly Oriented Pyrolytic Graphite" (2020). Space Dynamics Laboratory Publications. Paper 262.
https://digitalcommons.usu.edu/sdl_pubs/262