2021 APSUO Arthur H. Compton Award

Congratulations to Dr. Mark Rivers and Dr. Stephen Sutton as the recipients of the 2021 APSUO Arthur H. Compton Award. The award recognizes a significant scientific or technical accomplishment at the Advanced Photon Source.

GSECARS Developed an Efficient and Affordable N95 Mask Disinfection System

Dr. Peter Eng with help from Mike Proskey and Dr. Joanne Stubbs, developed an efficient system of disinfecting N95 masks in large quantities.  This system will be invaluable for hospitals, factories, schools and offices as America re-opens during the current health crisis.

GSECARS Scientists Continue to Decode Moon's Mysteries 50 Years Later

Celebrating the 50th anniversary of the Apollo 11 moon landing, Argonne explores its early lunar research as it anticipates studies at the Advanced Photon Source of pristine moon rocks from the final lunar landing missions.

Tomography at 13 BMD

A. Herring, OSU, uses tomography at 13 BMD to quantify pore scale trapping and to analyze how mechanisms affect the efficiency of capillary trapping of CO2 in saline aquifers.

What Diamond Impurities Tell Us About Earth's Mantle

Pockets of water may lay deep below Earth’s surface.

GSECARS Outreach

GSECARS hosts experiments at 13 IDE for high school students in the Exemplary Student Research Program (ESRP) representing local area high schools.

X-ray Diffraction Patterns from a Diamond Anvil Cell.

X-ray diffraction is the most powerful technique for crystal structure determination. From left to right, patterns from a single crystal, polychrystalline, nano-cyrstalline and amorphous crystals.

*** Updated Coronavirus Information  ***

The Advanced Photon Source Limited Operations


Update on status and plans at GSECARS, August 25, 2020

Please note the following information:
Current APS guidance for the 2021-1 and 2021-2 runs mandates that external users will not be allowed on-site.  Based on this current policy, GSECARS is only scheduling users for 2021-1 and 2021-2 that can mail-in samples, with partial or full remote access to control selected beamline computers to perform experiments in-close collaboration with GSECARS beamline staff.

Users that wish to have remote computer access to run their experiments at GSECARS will be considered “Remote Users” and noted so on their ESAF.  “Remote Users” are still required to have all their APS safety training up to date for ESAF approval, ANL site access must be current and an approved 593 in place for foreign nationals.

Contacting beamline staff prior to your experiment is required.  This can be arranged either via email, phone, or online (Zoom or Bluejeans are preferred).

Samples should be sent to your primary beamline contact at least one week ahead of scheduled beamtime.  Please send the shipment tracking number to your host.  We recommend FedEx as the most reliable option for shipping samples.

Send samples to :
Beamline Contact
The University of Chicago
Building 434A, Argonne National Laboratory
9700 South Cass Ave.
Lemont, IL   60439

GSECARS is a national user facility for frontier research in the earth sciences using synchrotron radiation at the Advanced Photon Source, Argonne National Laboratory.

GSECARS provides earth scientists with access to the high-brilliance hard x-rays from this third-generation synchrotron light source. All principal synchrotron-based analytical techniques in demand by earth scientists are being brought to bear on earth science problems:

  • High-pressure/high-temperature crystallography and spectroscopy using the diamond anvil cell

  • High-pressure/high-temperature crystallography and imaging using the large-volume press

  • Powder, single crystal and interface diffraction

  • Inelastic x-ray scattering

  • X-ray absorption fine structure spectroscopy

  • X-ray fluorescence microprobe analysis

  • Microtomography

Upcoming Events

1:00 pm APS-U/APS Ops Gap Workshop
APS-U/APS Ops Gap Workshop
Apr 19 @ 1:00 pm – Apr 22 @ 5:00 pm
APS-U/APS Ops Gap Workshop, Monday April 19 to Thursday April 22, 2021 The workshop is comprised of six 3-hour discussion groups for various topics that could be of interest to you.  The charge and agenda,[...]
8:00 am APS Long Term Storage Ring Maint...
APS Long Term Storage Ring Maint...
Apr 22 @ 8:00 am – Jun 1 @ 8:00 am
APS Long Term Storage Ring Maintenance
11:45 pm APS User Meeting Registration De...
APS User Meeting Registration De...
Apr 23 @ 11:45 pm
APS User Meeting Registration Deadline, April 23, 2021 May 3-7; 10-14, 2021 Registration Type – APS/CNM 2021 Users Meeting (cvent.com)
1:00 pm APS Scientific Computation Semin...
APS Scientific Computation Semin...
Apr 26 @ 1:00 pm – 2:00 pm
APS Scientific Computation Seminar Series Speaker:  Christine Sweeney, Programming Models Team Deputy Team Leader Applied Computer Science Los Alamos National Laboratory Title:  Data Science for Real-time Experimental Workflows at User Light Sources Date:  Monday, April 26, 2021[...]
2:00 pm HP Meeting, Arianna E Gleason-Ho...
HP Meeting, Arianna E Gleason-Ho...
Apr 26 @ 2:00 pm – 3:00 pm
Date: Monday, April 26, 2021 – 2pm (CDT) Speaker: Arianna E Gleason-Holbrook, (Stanford University / SLAC National Accelerator Laboratory) Title: TBA High Pressure Meeting | APS HPCAT (anl.gov)  
10:00 am PSC All Hands Meeting
PSC All Hands Meeting
Apr 28 @ 10:00 am – 11:00 am
PSC All Hands Meeting Wednesday, April 28, 2021 at 10:00am on Zoom. Join ZoomGov Meeting https://argonne.zoomgov.com/j/1615117157 Meeting ID: 161 511 7157 One tap mobile +16692545252,,1615117157# US (San Jose) +16468287666,,1615117157# US (New York) Meeting ID: 161 511 7157  
10:00 am ANL All-Hands Meeting
ANL All-Hands Meeting
May 4 @ 10:00 am – 11:00 am
ANL All-Hands Meeting Wednesday, May 4, 2021, 10 a.m. CDT/11 a.m. EDT Argonne Director Paul Kearns ANL management  will share updates on the laboratory’s science and technology leadership, operational excellence, and world-class community of talent. [...]
all-day 13-ID PSS Validation
13-ID PSS Validation
May 5 all-day
13-ID PSS validation, May 5, 2021, all day

Recent Publications

Science Highlights

Revealing the Complex Nature of Bonding in the Binary High-Pressure Compound FeO2

Koemets, E. and Leonov, I. and Bykov, M. and Bykova, E. and Chariton, S. and Aprilis, G. and Fedotenko, T. and Cl\’ement, S. and Rouquette, J. and Haines, J. and Cerantola, V. and Glazyrin, K. and McCammon, C. and Prakapenka, V. B. and Hanfland, M. and Liermann, H.-P. and Svitlyk, V. and Torchio, R. and Rosa, A. D. and Irifune, T. and Ponomareva, A. V. and Abrikosov, I. A. and Dubrovinskaia, N. and Dubrovinsky, L., “Revealing the Complex Nature of Bonding in the Binary High-Pressure Compound
FeO2”, Phys. Rev. Lett. 126, 106001

read more

Latest Happenings at GSECARS