Information for POWGEN Users

Announcements

We are excited to announce the addition of a new sample environment for the 2025-A cycle: a vanadium-tail magnet with a temperature range of 2 K to 300 K and a maximum magnetic field of 7 T. This magnet provides clean neutron diffraction patterns without contamination from aluminum peaks.

Useful Links for POWGEN Users

Experiment Guide: A–Z
Hutch Poster
Mail In Program Guide
Monitor Webpage
Rebuild paper Journal of Applied Crystallography, 52, 1189-1201 (2019)
Original paper Zeitschrift fur Kristallographie, 1, 127-135 (2011)
User Manual for Data Acquisition
User Manual for Data Access
User Manual for Mantid Workbench

Shipping Addresses for Samples

Please visit the ORNL User Facilities Sample Handling and Shipping page.

Quick Start Guides for Sample Changes and Shutter Operation

Data Reduction and Analysis by Run Cycle

Parameter files for GSAS-II, FullProf, Jana and TOPAS can be downloaded from the table below. Be sure to pick the correct cycle. These files are also stored in the /SNS/PG3/run_cycle_11A_CAL folder in the analysis computer where cycle is year_1 or year_2 based on cycle A or B.

Dates	Run Numbers	GSAS-II	FullProf	Jana	Mag2Pol	TOPAS	PDF
2025 January - May	58384 - 60459	GSAS-II_2025A_HR	FullProf_2025A	JANA_2025A	Mag2Pol_2025A	TOPAS_2025A
2024 June - November	56309 - 58383	GSAS-II_2024_HR	FullProf_2024	JANA_2024B		TOPAS_2024
2023 June - August	55221 - 56308	GSAS-II_2023_HR	FullProf_2023	Jana_2023		TOPAS_2023	PDF_2023
2022 Nov - Feb 2023	53957 - 55220	GSAS-II_2022B_HR	FullProf_2022B	Jana_2022B		TOPAS_2022B
2022 January - August	51648 - 53956	GSAS-II_2022A_HR	FullProf_2022A	Jana_2022A_HR		TOPAS_2022A	PDF_2022A
2021 July - October	50286 - 51647	GSAS-II_2021B_HR_v2	FullProf_2021B_HR			TOPAS_2021B_HR	PDF_2021B
2021 February - June	48322 - 50285	GSASII_2021_HR_v2	FullProf_2021A			TOPAS_2021A_HR	PDF_2021A
2020 May - November	46137 - 48321	GSASII_2020A-may_HR	FullProf_2020A-may_HR			TOPAS_2020B	PDF_2020A-may
2020 January - February	45453 - 46136	GSASII_2020A	FullProf_2020A_HR			TOPAS_2020A	PDF_2020A

Data Analysis Tutorials

Synchrotron Partnership

POWGEN has a partnership with beam line 11BM at the Advanced Photon Source where users can get x-ray data if they have an approved proposal at POWGEN. This option is not available for mail in proposals.