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Postdoctoral Appointee – Storage-Ring-Based X-Ray Free-Electron Laser Oscillator
Argonne National Laboratory · Lemont, IL · Posted 4 days ago
Help determine whether a storage-ring X-ray free-electron laser oscillator at the APS can work at 9.8 keV, designing diamond-crystal cavity mirrors and testing them on real beamlines.
The X-ray Science Division (XSD) Optics group and the Accelerator Systems Division (ASD) Diagnostics group at Argonne National Laboratory are seeking a Postdoctoral Appointee to contribute to the conceptual development of a storage-ring-based X-ray free-electron laser oscillator (SR-XFELO) at the Advanced Photon Source (APS).
The project will assess the feasibility of implementing a hard X-ray oscillator operating at 9.8 keV within a 5-m-long APS undulator section. The proposed concept incorporates a transverse-gradient undulator, a diamond-crystal X-ray cavity, and associated high-heat-load X-ray optics.
The successful candidate will contribute to the design, simulation, and experimental characterization of key SR-XFELO components and systems, with particular emphasis on X-ray cavity optics, FEL simulations, and integration with a next-generation sub-meV inelastic X-ray scattering spectrometer.
Primary activities will include :
- Developing and evaluating X-ray cavity concepts and optical components for SR-XFELO operation.
- Performing electron- and X-ray-beam simulations to assess FEL and cavity performance.
- Designing, testing, and characterizing cryogenically cooled diamond-crystal cavity mirrors at the APS beamlines.
- Investigating high-heat-load X-ray optical components and developing methods to improve their thermal and mechanical stability.
- Supporting conceptual integration of the SR-XFELO with a next-generation sub-meV inelastic X-ray scattering spectrometer.
- Contributing to the design of optical, mechanical, and diagnostic systems for component and subsystem testing.
This position, working across XSD-Optics and ASD-Diagnostics offers an opportunity to work at the forefront of future light-source and X-ray-optics development. The appointee will collaborate closely with researchers and engineers across the Advanced Photon Source and other Argonne divisions in a multidisciplinary research environment.
Position Requirements
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This role centers on X-ray Optics, Fel Simulation, Accelerator Physics, and Synchrotron Radiation. There are 102 open roles at Argonne National Laboratory right now.
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