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This data has achieved Bronze level on 23 October 2015 which means this data makes a great start at the basics of publishing open data.

Powder Handling Device for X-ray Diffraction Analysis with Minimal Sample Preparation Project

Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
9 April 2015
Modified Date
8 July 2015
Publishers
National Aeronautics and Space Administration
Keywords
ames-research-center, completed, project
Identifier
powder-handling-device-for-x-ray-diffraction-analysis-with-minimal-sample-preparation-proj
Landing Page
http://techport.nasa.gov/view/5131
Maintainers
Philippe Sarrazin philippe.c.sarrazin@nasa.gov
Language
en-US

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Description

This project consists of developing a Vibrating Sample Holder (VSH) for planetary X-Ray Diffraction (XRD) instruments. The principle of this novel sample handling technique relies on vibrations generated in a sample holder to create movements in the powdered sample. The major benefit over conventional sample handling techniques is the possibility to characterize materials with grain-sizes up to two orders of magnitude larger, with no degradation in the data quality. It allows existing planetary sample-preparation systems such as rock crushers and drills to be used in place of fine-grinding mills normally required for quality XRD analysis. A secondary benefit of the VSH is that it offers a simple means of loading and removal of samples, with a limited number of moving parts. This research will answer a critical need for sample handling devices for conducting definitive mineralogy analyses in Solar System Exploration. The Phase 1 effort will focus on a feasibility study of two critical components of the system: the thin X-ray windows required for the sample holder, and the mechanism for controlling the granular flow. The Phase 2 R&D work will lead to a VSH brassboard prototype that can be remotely operated and interfaced to a planetary XRD instrument.

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This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

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