Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime
Inverse Compton scattering (ICS) is a unique mechanism for producing fast pulses—picosecond and below—of bright photons, ranging from x to γ rays. These nominally narrow spectral bandwidth electromagnetic radiation pulses are efficiently produced in the interaction between intense, well-focused elec...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017-06-01
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| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.20.060701 |
| _version_ | 1818011720212283392 |
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| author | Y. Sakai I. Gadjev P. Hoang N. Majernik A. Nause A. Fukasawa O. Williams M. Fedurin B. Malone C. Swinson K. Kusche M. Polyanskiy M. Babzien M. Montemagno Z. Zhong P. Siddons I. Pogorelsky V. Yakimenko T. Kumita Y. Kamiya J. B. Rosenzweig |
| author_facet | Y. Sakai I. Gadjev P. Hoang N. Majernik A. Nause A. Fukasawa O. Williams M. Fedurin B. Malone C. Swinson K. Kusche M. Polyanskiy M. Babzien M. Montemagno Z. Zhong P. Siddons I. Pogorelsky V. Yakimenko T. Kumita Y. Kamiya J. B. Rosenzweig |
| author_sort | Y. Sakai |
| collection | DOAJ |
| description | Inverse Compton scattering (ICS) is a unique mechanism for producing fast pulses—picosecond and below—of bright photons, ranging from x to γ rays. These nominally narrow spectral bandwidth electromagnetic radiation pulses are efficiently produced in the interaction between intense, well-focused electron and laser beams. The spectral characteristics of such sources are affected by many experimental parameters, with intense laser effects often dominant. A laser field capable of inducing relativistic oscillatory motion may give rise to harmonic generation and, importantly for the present work, nonlinear redshifting, both of which dilute the spectral brightness of the radiation. As the applications enabled by this source often depend sensitively on its spectra, it is critical to resolve the details of the wavelength and angular distribution obtained from ICS collisions. With this motivation, we present an experimental study that greatly improves on previous spectral measurement methods based on x-ray K-edge filters, by implementing a multilayer bent-crystal x-ray spectrometer. In tandem with a collimating slit, this method reveals a projection of the double differential angular-wavelength spectrum of the ICS radiation in a single shot. The measurements enabled by this diagnostic illustrate the combined off-axis and nonlinear-field-induced redshifting in the ICS emission process. The spectra obtained illustrate in detail the strength of the normalized laser vector potential, and provide a nondestructive measure of the temporal and spatial electron-laser beam overlap. |
| first_indexed | 2024-04-14T06:12:13Z |
| format | Article |
| id | doaj.art-82e26dd49d3b4d88b04a4e31e34cd871 |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-04-14T06:12:13Z |
| publishDate | 2017-06-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-82e26dd49d3b4d88b04a4e31e34cd8712022-12-22T02:08:20ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882017-06-0120606070110.1103/PhysRevAccelBeams.20.060701Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regimeY. SakaiI. GadjevP. HoangN. MajernikA. NauseA. FukasawaO. WilliamsM. FedurinB. MaloneC. SwinsonK. KuscheM. PolyanskiyM. BabzienM. MontemagnoZ. ZhongP. SiddonsI. PogorelskyV. YakimenkoT. KumitaY. KamiyaJ. B. RosenzweigInverse Compton scattering (ICS) is a unique mechanism for producing fast pulses—picosecond and below—of bright photons, ranging from x to γ rays. These nominally narrow spectral bandwidth electromagnetic radiation pulses are efficiently produced in the interaction between intense, well-focused electron and laser beams. The spectral characteristics of such sources are affected by many experimental parameters, with intense laser effects often dominant. A laser field capable of inducing relativistic oscillatory motion may give rise to harmonic generation and, importantly for the present work, nonlinear redshifting, both of which dilute the spectral brightness of the radiation. As the applications enabled by this source often depend sensitively on its spectra, it is critical to resolve the details of the wavelength and angular distribution obtained from ICS collisions. With this motivation, we present an experimental study that greatly improves on previous spectral measurement methods based on x-ray K-edge filters, by implementing a multilayer bent-crystal x-ray spectrometer. In tandem with a collimating slit, this method reveals a projection of the double differential angular-wavelength spectrum of the ICS radiation in a single shot. The measurements enabled by this diagnostic illustrate the combined off-axis and nonlinear-field-induced redshifting in the ICS emission process. The spectra obtained illustrate in detail the strength of the normalized laser vector potential, and provide a nondestructive measure of the temporal and spatial electron-laser beam overlap.http://doi.org/10.1103/PhysRevAccelBeams.20.060701 |
| spellingShingle | Y. Sakai I. Gadjev P. Hoang N. Majernik A. Nause A. Fukasawa O. Williams M. Fedurin B. Malone C. Swinson K. Kusche M. Polyanskiy M. Babzien M. Montemagno Z. Zhong P. Siddons I. Pogorelsky V. Yakimenko T. Kumita Y. Kamiya J. B. Rosenzweig Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime Physical Review Accelerators and Beams |
| title | Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime |
| title_full | Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime |
| title_fullStr | Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime |
| title_full_unstemmed | Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime |
| title_short | Single shot, double differential spectral measurements of inverse Compton scattering in the nonlinear regime |
| title_sort | single shot double differential spectral measurements of inverse compton scattering in the nonlinear regime |
| url | http://doi.org/10.1103/PhysRevAccelBeams.20.060701 |
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