Miniature Universal Sampling System for Scientific Instruments

Metadata Updated: November 12, 2020

Characterize the performance of a low-temperature plasma discharge for use as an ion source, an ablation tool, and a sterilization tool.The ion source investigation consisted of coupling the low-temperature plasma discharge source to a mass spectrometer. The goal of this investigation is to provide insight into the ion yield and degree of fragmentation of the low-temperature plasma source relative to conventional electron-impact ion sources, as well as providing insight into technical requirements relating to gas usage, and vacuum requirements. Answering these questions will also address the larger question: is a plasma discharge ion source feasible for planetary exploration? The ablation study with the low-temperature plasma consisted of prolonged exposures of metal surfaces to the low-temperature plasma discharge and analyzing surface modifications with scanning electron microscopy. The intent of this study is to identify whether a plasma source can be used to ablate material from a surface and provide depth profiling of that surface when used in conjunction with a mass spectrometer. Sterilization of a surface with plasmas can proceed through passivation where contaminants are simply desorbed from the surface or through deactivation where biological contaminants on a surface are altered or destroyed following exposure to the plasma. This sterilization study with the low-temperature plasma probe focused on deactivation and involved exposure of Bacillus subtilis samples to the low-temperature plasma discharge to ascertain its effectiveness in deactivating these spores.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Maintainer
Identifier TECHPORT_10536
Data First Published 2012-04-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/10536
Program Code 026:027
Source Datajson Identifier True
Source Hash 3838acf7efe953eccd9ca7e8878ed48e3cdd7985
Source Schema Version 1.1

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