UV Ionizer for Neutral Wind Mass Spectrometers

Metadata Updated: May 2, 2019

Current neutral particle instrumentation relies on hot cathode filaments or an electron gun for ionizing the target medium.[HTML_REMOVED] These ionization sources represent a potential Achilles Heel since such sources may require substantial power.[HTML_REMOVED] This effort seeks to evaluate a commercially available 240-nm (5.17-eV) UV LED as an efficient, low-power ionizer for use in 2D neutral wind mass spectrometer instrumentation and for laboratory source applications. The objective of this project is to develop and validate the efficiency and reliability of a prototype ionizer [HTML_REMOVED] that employs commercially available 240-nm (5.17-ev) UV LEDs [HTML_REMOVED] similar to that presented in Figure 1 [HTML_REMOVED] that would then be integrated into a 2D neutral wind mass spectrometer with a form factor applicable to platforms from CubeSat upward.[HTML_REMOVED] This effort will result in the development of [basically] a self-contained ion [HTML_REMOVED]source[HTML_REMOVED] that will mount onto an existing vacuum system containing beam diagnostic instrumentation.[HTML_REMOVED] This instrumentation will allow for the characterization of the resultant ion [HTML_REMOVED]beam[HTML_REMOVED] thereby allowing for determination of ionization efficiency as a function of UV LED intensity and power consumption.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_17406
Maintainer
TECHPORT SUPPORT
Maintainer Email
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
Datagov Dedupe Retained 20190501230127
Harvest Object Id 15288fce-6421-4e8e-828d-f4f469f9ebd0
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-09-01
Homepage URL https://techport.nasa.gov/view/17406
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 2fca345e4a53f54de055e59272671e7da34319f0
Source Schema Version 1.1

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