Information for VULCAN Users

Become a VULCAN User

  1. Contact us for capabilities, experiment design, and development of proposals.
  2. Refer to VULCAN Proposal Key Points before writing the proposal.
  3. Submit your proposal in IPTS.

Approved Proposals

You will be notified of an experiment date and will need to confirm the date by replying to the email and the experiment in the IPTS system.

Prepare and Ship Your Samples

Sample Geometry

Ship your samples

Shipping instructions are available on the For Users page. 

We recommend VULCAN standard samples. If you cannot provide standard sample geometry, please prepare grip adapters.

Plan Your Trip

The User Office will contact you about site access and proper training. You have the option to stay at the ORNL Guest House, which is located on the SNS site. For complex experiments, two to three users are recommended.

VDRIVE: VULCAN Data Reduction and Interactive Visualization software

  1. Get an XCAMS account (the same one that you used in IPTS system). If you do not have an account, you can request one.
  2. Go to and follow the instructions for the remote window access.
  3. Use VDRIVE to perform data reduction or analysis. The manual can be found here or on the data analysis computer. Use Remote Desktop or ThinLinc client to logon (see

For computer access issues contact

VULCAN Instrument Performance

The VULCAN instrument uses time-of-flight powder diffraction to understand properties of the materials. The determined resolution limit for VULCAN is described in the figure below, and can be downloaded in a spreadsheet format as well.

Instrument Resolution at VULCAN - HR ModeInstrument Resolution at VULCAN - HI Mode

VULCAN Resolution Table 2019B VULCAN Resolution Information 2019B

Download/Upload Your Data

Client mode: Use an SFTP client to transfer data between your own computer and the data on server. FileZilla is a free one that works across different platforms. The server is; the port for SFTP is 22.

Publish Results

Please review your primary obligations regarding the facility acknowledgement statement and notifying the User Office. Contact the User Office with questions.