MIT inverse Compton source concept
Author(s)
Graves, William S.; Brown, W.; Kaertner, Franz X.; Moncton, David E.
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A compact X-ray source based on inverse Compton scattering of a high-power laser on a high-brightness linac beam is described. The facility can operate in two modes: at high (MHz) repetition rate with flux and brilliance similar to that of a beamline at a large 2nd generation synchrotron, but with short ∼1 ps pulses, or as a 10 Hz high flux-per-pulse single-shot machine. It has a small footprint and low cost appropriate for university or industry laboratories. The key enabling technologies are a high average power laser and a superconducting accelerator. The cryo-cooled Yb:YAG laser amplifier generates ∼1 kW average power at 1 μm wavelength that pumps a coherent cavity up to 1 MW stored power. The high-brightness electron beam is produced by a superconducting RF photoinjector and linac operating in CW mode with up to 1 mA current. The photocathode laser produces electron pulses at either 100 MHz with 10 pc per bunch, or at 10 Hz with 1 nC per bunch in the two operating modes. The design of the facility is presented, including optimization of the laser and electron beams, major technical choices, and the resulting X-ray performance with a focus on the 100 MHz mode.
Date issued
2009-09Department
Lincoln Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; MIT Nuclear Reactor LaboratoryJournal
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publisher
Elsevier
Citation
Graves, W.S. et al. “MIT inverse Compton source concept.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 608.1 (2009): S103-S105.
Version: Author's final manuscript
ISSN
0168-9002