Quasi-monochromatic hard X-ray source via laser Compton scattering and its application

Kuroda, R.; Toyokawa, Hiroyuki; Yasumoto, M.; Ikeura-Sekiguchi, Hiromi; Koike, M.; Yamada, Ken‐ichi; Yanagida, Takeshi; Nakajyo, Terunobu; Sakai, Fumio; Mori, Koichi

doi:10.1016/j.nima.2010.04.001

Cited by 41 publications

(23 citation statements)

References 13 publications

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“…Eventually they will be considered for very high energy photon generation (in the GeV to TeV range) since there are no other competing techniques at present, neither on the horizon, based on artificial tools at this high photon energy [5]. As a consequence, a flourishing of design activities is presently occurring in several laboratories [6][7][8][9][10][11][12][13][14][15] and companies [16][17][18][19], where ICSs are being conceived, designed and built to enable several domains of applications, and ranging from a few keV photon energy up to GeV's and beyond. Designs of ICSs are carried out considering several diverse schemes, ranging from high gradient room temperature pulsed RF Linacs [3,20,21] to CW ERL Super-conducting Linacs [22,23] or storage rings [2,[24][25][26][27], as far as the electron beam generation is concerned, and from single pulse Jclass amplified laser systems running at 100 Hz to optical cavities (e.g.…”

Section: Introductionmentioning

confidence: 99%

Analytical description of photon beam phase spaces in inverse Compton scattering sources

Curatolo

Drebot

Petrillo

et al. 2017

Phys. Rev. Accel. Beams

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We revisit the description of inverse Compton scattering sources and the photon beams generated therein, emphasizing the behavior of their phase space density distributions and how they depend upon those of the two colliding beams of electrons and photons. Main objective is to provide practical formulas for bandwidth, spectral density, brilliance, which are valid in general for any value of the recoil factor, i.e. both in the Thomson regime of negligible electron recoil, and in the deep Compton recoil dominated region, which is of interest for gamma-gamma colliders and Compton Sources for the production of multi-GeV photon beams. We adopt a description based on the center of mass reference system of the electron-photon collision, in order to underline the role of the electron recoil and how it controls the relativistic Doppler/boost effect in various regimes. Using the center of mass reference frame greatly simplifies the treatment, allowing to derive simple formulas expressed in terms of rms momenta of the two colliding beams (emittance, energy spread, etc.) and the collimation angle in the laboratory system. Comparisons with Monte Carlo simulations of inverse Compton scattering in various scenarios are presented, showing very good agreement with the analytical formulas: in particular we find that the bandwidth dependence on the electron beam emittance, of paramount importance in Thomson regime, as it limits the amount of focusing imparted to the electron beam, becomes much less sensitive in deep Compton regime, allowing a stronger focusing of the electron beam to enhance luminosity without loss of mono-chromaticity. A similar effect occurs concerning the bandwidth dependence on the frequency spread of the incident photons: in deep recoil regime the bandwidth comes out to be much less dependent on the frequency spread. The set of formulas here derived are very helpful in designing inverse Compton sources in diverse regimes, giving a quite accurate first estimate in typical operational conditions for number of photons, bandwidth, spectral density and brilliance values -the typical figures of merit of such radiation sources.

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Section: Introductionmentioning

confidence: 99%

Analytical description of photon beam phase spaces in inverse Compton scattering sources

Curatolo

Drebot

Petrillo

et al. 2017

Phys. Rev. Accel. Beams

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“…This process combined with a proper choice of solenoid field around, or immediately after, the gun, allows reaching very high beam brightness. These devices can find applications as injectors for free-electron lasers (FELs) [1][2][3][4][5][6], terahertz radiation generation [7,8], electron diffraction [9][10][11][12][13] and Compton sources [14].…”

Section: Introductionmentioning

confidence: 99%

New technology based on clamping for high gradient radio frequency photogun

Alesini

Battisti

Ferrario

et al. 2015

Phys. Rev. ST Accel. Beams

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High gradient rf photoguns have been a key development to enable several applications of high quality electron beams. They allow the generation of beams with very high peak current and low transverse emittance, satisfying the tight demands for free-electron lasers, energy recovery linacs, Compton/Thomson sources and high-energy linear colliders. In the present paper we present the design of a new rf photogun recently developed in the framework of the SPARC_LAB photoinjector activities at the laboratories of the National Institute of Nuclear Physics in Frascati (LNF-INFN, Italy). This design implements several new features from the electromagnetic point of view and, more important, a novel technology for its realization that does not involve any brazing process. From the electromagnetic point of view the gun presents high mode separation, low peak surface electric field at the iris and minimized pulsed heating on the coupler. For the realization, we have implemented a novel fabrication design that, avoiding brazing, strongly reduces the cost, the realization time and the risk of failure. Details on the electromagnetic design, low power rf measurements and high power radiofrequency and beam tests performed at the University of California in Los Angeles (UCLA) are discussed in the paper.

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“…Existing Thomson sources [22][23][24][25][26][27][28][29][30][31][32] have already demonstrated to be an important tool for generating tunable quasimonochromatic x=γ rays suitable for applications in many fields such as crystallography, plasma, high energy, matter physics and nuclear photonics and in the advanced biomedical imaging. In fact, experiments on phase contrast imaging [25,27], microtomography [25], K-edge techniques [23,33] on biological and human samples have been successfully performed.…”

Section: Introductionmentioning

confidence: 99%

Dual color x-rays from Thomson or Compton sources

Petrillo

Bacci

Curatolo

et al. 2015

Advances in X-Ray Free-Electron Lasers Instrumentation III

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We analyze the possibility of producing two-color x or γ radiation by Thomson/Compton backscattering between a high intensity laser pulse and a two-energy level electron beam, constituted by a couple of beamlets separated in time and/or energy obtained by a photoinjector with comb laser techniques and linac velocity bunching. The parameters of the Thomson source at SPARC_LAB have been simulated, proposing a set of realistic experiments.

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Quasi-monochromatic hard X-ray source via laser Compton scattering and its application

Cited by 41 publications

References 13 publications

Analytical description of photon beam phase spaces in inverse Compton scattering sources

Analytical description of photon beam phase spaces in inverse Compton scattering sources

New technology based on clamping for high gradient radio frequency photogun

Dual color x-rays from Thomson or Compton sources

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