Class
Article
College
College of Science
Department
English Department
Faculty Mentor
JR Dennison
Presentation Type
Poster Presentation
Abstract
This experiment focuses primarily on the preparation and characterization of granular samples for the eventual purpose of electron yield measurements. Highly insulating granular samples are notoriously difficult to prepare and present a myriad ofcomplications from both experimental and practical frameworks. A famous example of this was during the 1969 Apollo 11 mission when electrostatically adhered lunar dust damaged the equipment and astronauts suits and led to purported health effects. The electrical properties of this dust for charging and discharge is essential to preventing these effects. In this study, particles of varying size, shape, and composition are used to create multilayered samples with a wide range of particulate coverage on a substrate that can withstand vacuum conditions. The particulate samples were characterized and subsequent electron emission measurements were then compared to measurements of the bulk particulate and substrate materials. Measurements demonstrated the ability to perform these difficult measurements and how the sample properties affected yields.
Location
Logan, UT
Start Date
4-8-2022 12:00 AM
Included in
Preparation and Characterization of Highly Insulating Granular Samples for Electron Yield Measurement
Logan, UT
This experiment focuses primarily on the preparation and characterization of granular samples for the eventual purpose of electron yield measurements. Highly insulating granular samples are notoriously difficult to prepare and present a myriad ofcomplications from both experimental and practical frameworks. A famous example of this was during the 1969 Apollo 11 mission when electrostatically adhered lunar dust damaged the equipment and astronauts suits and led to purported health effects. The electrical properties of this dust for charging and discharge is essential to preventing these effects. In this study, particles of varying size, shape, and composition are used to create multilayered samples with a wide range of particulate coverage on a substrate that can withstand vacuum conditions. The particulate samples were characterized and subsequent electron emission measurements were then compared to measurements of the bulk particulate and substrate materials. Measurements demonstrated the ability to perform these difficult measurements and how the sample properties affected yields.