Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

CHRNS FAIR data at the NCNR


CHRNS Implements FAIR-data management at the NCNR
(Findable, Accessible, Interoperable and Reusable)

ORCiD integration

  • Users can link their ORCiD to the proposal and user-management system (IMS)
    • Allows login using ORCiD credentials (one less password to remember)
    • Allows linking experiment metadata with ORCiD record
  • Instrument Control software (NICE) will pull participant ORCiDs for experiments from IMS
    • Incorporated in DOI metadata for experiment - data citations are linked to users
  • In the future, ORCiD can provide identity management for future remote computing access

Permanent Identifiers for Experiments (DOI)

  • Automatic creation of permanent Digital Object Identifier (DOI) for each NCNR beam experiment
  • Metadata included with record:
    • Experiment ID (from IMS)
    • Title and description
    • ORCiD of all participants
    • Start and stop dates
    • Links to raw data and online data processing resources
  • Directly citable in publications derived from the data

Searchable Metadata

  • Ability to add sample metadata through instrument control software (NICE)
    • keywords can be selected from predefined taxonomy or free-form
    • Metadata is linked to sample being measured and embedded into data files
  • Metadata is extracted from data files when published to data repository
    • Stored in flexible database (no strict schema)
    • A search interface (machine-accessible API) provided 
    • A human-friendly web search interface uses the API above

Capture of Process Metadata

  • Experimental conditions
  • Measurement context supplied by user or by semi-automated workflows, e.g.
    • Intent of the measurement (scattering vs. background ...)
    • Relationships between measurements (grouping)
    • Identification of calibration files
  • All added to searchable metadata above

Traceable Data Processing

  • Track the history of all processing steps (embedded in processed file, or as a separate download)
  • Machine-readable formats
  • Best effort to support "replay" or reloading of the steps directly into the processing software, for verification or alteration of protocols.
  • Encourage users to include this with publications of processed data (or in supplemental materials)
Created January 4, 2022, Updated January 26, 2022