Advanced Photon Source

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Advanced Photon Source (APS)
U.S. Department of Energy - Science - 362 027 001 (10193127443).jpg
External view of the APS
General properties
Accelerator type Storage ring
Beam type Electron
Target type Light source
Beam properties
Maximum energy7 GeV
Maximum current100 mA
Maximum brightness 6×1019 ph./s/0.1%/mm2/mrad2
Physical properties
Circumference1,100 metres (3,600 ft)
Location Lemont, Illinois
Institution US-DoE
Dates of operation1995 – present

The Advanced Photon Source (APS) at Argonne National Laboratory (in Lemont, Illinois) is a storage-ring-based high-energy X-ray light source facility. It is one of five X-ray light sources owned and funded by the U.S. Department of Energy Office of Science. The APS began operation on March 26, 1995. It is operated as a user facility, meaning that it is open to the world’s scientific community, and more than 5,500 researchers make use of its resources each year.

Contents

How APS works

Inside the APS Storage Ring Enclosure APS Synchrotron.jpg
Inside the APS Storage Ring Enclosure

The APS uses a series of particle accelerators to push electrons up to nearly the speed of light, and then injects them into a storage ring that is roughly two-thirds of a mile around. At every bend in the track, these electrons emit synchrotron radiation in the form of ultrabright X-rays. Scientists at 65 experiment stations around the ring use these X-rays for basic and applied research in a number of fields.

Scientists use the X-rays generated by the APS to peer inside batteries, with the goal of creating longer-lasting, faster-charging energy storage devices; [1] to improve 3D printing for more durable materials; [2] to learn more about the behavior of charged particles in order to improve electronics; [3] and to map the brain to understand more about neurological diseases. [4] APS research played a role in the development of the COVID-19 vaccines in use in the United States. [5]

The Experiment Hall surrounds the storage ring and is divided into 35 sectors, each of which has access to x-ray beamlines, one at an insertion device, and the other at a bending magnet. [6] Each sector also corresponds to a lab/office module offering immediate access to the beamline. [7]

Two Nobel prizes in chemistry have been granted for work performed in part at the APS. The 2009 prize was awarded for the discovery of the structure of the ribosome, [8] and the 2012 prize for the structure of G-protein coupled receptors. [9]

APS upgrade

The APS underwent an upgrade that saw the original storage ring replaced with a new multi-bend achromat lattice. Construction of nine new feature beamlines and 15 enhanced existing beamlines will be completed in 2024 and 2025. [10] The result will be X-rays that are up to 500 times brighter than those currently generated, and beamlines that will enable greater focusing ability to examine smaller materials in sharper detail. The installation period for the new storage ring began on April 24, 2023, and was completed roughly 12 months later in 2024, with stored beam demonstrated April 20, 2024. [11] [12]

See also

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References

  1. ↑ "Battery of tests: Scientists figure out how to track what happens inside batteries | Argonne National Laboratory". www.anl.gov. Retrieved 2021-10-21.
  2. ↑ "Putting a Shine on Metal 3-D Printing | Advanced Photon Source". www.aps.anl.gov. Retrieved 2021-10-21.
  3. ↑ "A new spin on energy-efficient electronics | Argonne National Laboratory". www.anl.gov. Retrieved 2021-10-21.
  4. ↑ "Researchers image an entire mouse brain for the first time | Argonne National Laboratory". www.anl.gov. Retrieved 2021-10-21.
  5. ↑ "APS plays foundational role in development of COVID-19 vaccines | Argonne National Laboratory". www.anl.gov. Retrieved 2021-10-21.
  6. ↑ "Experiment Hall & Beamlines". Argonne National Laboratory. Archived from the original on 25 March 2008. Retrieved 9 January 2008.
  7. ↑ "LOMs & Beamlines". Argonne National Laboratory. Archived from the original on 25 March 2008. Retrieved 9 January 2008.
  8. ↑ "2009 Chemistry Nobel to APS Users | Advanced Photon Source". www.aps.anl.gov. Retrieved 2021-10-21.
  9. ↑ "Advanced Photon Source lights the way to 2012 Chemistry Nobel | Argonne National Laboratory". www.anl.gov. Retrieved 2021-10-21.
  10. ↑ "Argonne's Advanced Photon Source to Get $815 Million Upgrade | Advanced Photon Source". www.aps.anl.gov. Retrieved 2021-10-21.
  11. ↑ "APS Upgrade Installation Period Scheduled to Begin April 17, 2023 | Advanced Photon Source". www.aps.anl.gov. Retrieved 2021-10-21.
  12. ↑ "First stored electron beam in new APS storage ring | Advanced Photon Source". www.aps.anl.gov. Retrieved 2024-04-24.

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