Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz
Abstract
A design for a compact x-ray light source (CXLS) with flux and brilliance orders of magnitude beyond existing laboratory scale sources is presented. The source is based on inverse Compton scattering of a high brightness electron bunch on a picosecond laser pulse. The accelerator is a novel high-efficiency standingwave linac and rf photoinjector powered by a single ultrastable rf transmitter at X-band rf frequency. The high efficiency permits operation at repetition rates up to 1 kHz, which is further boosted to 100 kHz by operating with trains of 100 bunches of 100 pC charge, each separated by 5 ns. The entire accelerator is approximately 1 meter long and produces hard x rays tunable over a wide range of photon energies. The colliding laser is a Yb:YAG solid-state amplifier producing 1030 nm, 100 mJ pulses at the same 1 kHz repetition rate as the accelerator. The laser pulse is frequency-doubled and stored for many passes in a ringdown cavity to match the linac pulse structure. At a photon energy of 12.4 keV, the predicted x-ray flux is 5 × 10¹¹ photons/second in a 5% bandwidth and the brilliance is 2 × 10¹² photons/(sec mm² mrad² 0.1%) in pulses with rms pulsemore »
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Defense Advanced Research Projects Agency (DARPA); National Science Foundation (NSF)
- OSTI Identifier:
- 1179892
- Alternate Identifier(s):
- OSTI ID: 1207173
- Grant/Contract Number:
- FG02-10ER46745; FG02-08ER41532
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- Physical Review Special Topics. Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Special Topics. Accelerators and Beams Journal Volume: 17 Journal Issue: 12; Journal ID: ISSN 1098-4402
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; 42 ENGINEERING
Citation Formats
Graves, W. S., Bessuille, J., Brown, P., Carbajo, S., Dolgashev, V., Hong, K. -H., Ihloff, E., Khaykovich, B., Lin, H., Murari, K., Nanni, E. A., Resta, G., Tantawi, S., Zapata, L. E., Kärtner, F. X., and Moncton, D. E. Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz. United States: N. p., 2014.
Web. doi:10.1103/PhysRevSTAB.17.120701.
Graves, W. S., Bessuille, J., Brown, P., Carbajo, S., Dolgashev, V., Hong, K. -H., Ihloff, E., Khaykovich, B., Lin, H., Murari, K., Nanni, E. A., Resta, G., Tantawi, S., Zapata, L. E., Kärtner, F. X., & Moncton, D. E. Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz. United States. https://doi.org/10.1103/PhysRevSTAB.17.120701
Graves, W. S., Bessuille, J., Brown, P., Carbajo, S., Dolgashev, V., Hong, K. -H., Ihloff, E., Khaykovich, B., Lin, H., Murari, K., Nanni, E. A., Resta, G., Tantawi, S., Zapata, L. E., Kärtner, F. X., and Moncton, D. E. 2014.
"Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz". United States. https://doi.org/10.1103/PhysRevSTAB.17.120701.
@article{osti_1179892,
title = {Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz},
author = {Graves, W. S. and Bessuille, J. and Brown, P. and Carbajo, S. and Dolgashev, V. and Hong, K. -H. and Ihloff, E. and Khaykovich, B. and Lin, H. and Murari, K. and Nanni, E. A. and Resta, G. and Tantawi, S. and Zapata, L. E. and Kärtner, F. X. and Moncton, D. E.},
abstractNote = {A design for a compact x-ray light source (CXLS) with flux and brilliance orders of magnitude beyond existing laboratory scale sources is presented. The source is based on inverse Compton scattering of a high brightness electron bunch on a picosecond laser pulse. The accelerator is a novel high-efficiency standingwave linac and rf photoinjector powered by a single ultrastable rf transmitter at X-band rf frequency. The high efficiency permits operation at repetition rates up to 1 kHz, which is further boosted to 100 kHz by operating with trains of 100 bunches of 100 pC charge, each separated by 5 ns. The entire accelerator is approximately 1 meter long and produces hard x rays tunable over a wide range of photon energies. The colliding laser is a Yb:YAG solid-state amplifier producing 1030 nm, 100 mJ pulses at the same 1 kHz repetition rate as the accelerator. The laser pulse is frequency-doubled and stored for many passes in a ringdown cavity to match the linac pulse structure. At a photon energy of 12.4 keV, the predicted x-ray flux is 5 × 10¹¹ photons/second in a 5% bandwidth and the brilliance is 2 × 10¹² photons/(sec mm² mrad² 0.1%) in pulses with rms pulse length of 490 fs. The nominal electron beam parameters are 18 MeV kinetic energy, 10 microamp average current, 0.5 microsecond macropulse length, resulting in average electron beam power of 180 W. Optimization of the x-ray output is presented along with design of the accelerator, laser, and x-ray optic components that are specific to the particular characteristics of the Compton scattered x-ray pulses.},
doi = {10.1103/PhysRevSTAB.17.120701},
url = {https://www.osti.gov/biblio/1179892},
journal = {Physical Review Special Topics. Accelerators and Beams},
issn = {1098-4402},
number = 12,
volume = 17,
place = {United States},
year = {Mon Dec 01 00:00:00 EST 2014},
month = {Mon Dec 01 00:00:00 EST 2014}
}
Web of Science
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