Photon flux and spectrum of γ-rays Compton sources

V. Petrillo, A. Bacci, R. Ben Alì Zinati, I. Chaikovska, C. Curatolo, M. Ferrario, C. Maroli, C. Ronsivalle, A.R. Rossi, L. Serafini, P. Tomassini, C. Vaccarezza, A. Variola

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Abstract

We analyze the characteristics of the γ radiation produced by Compton back-scattering of a high brightness electron beam produced by a photoinjector and accelerated in a linac up to energies of 360-720 MeV and a laser operated at about 500 nm, by comparing classical and quantum models and codes. The interaction produces γ rays in the range 4.9-18.8 MeV. In view of the application to nuclear resonance fluorescence a relative bandwidth of few 10-3is needed. The bandwidth is reduced by taking advantage of the frequency-angular correlation typical of the phenomenon and selecting the radiation in an angle of tens of mrads. The foreseen spectral density is 20-6 photons per eV in a single shot, a number that can be increased by developing multi-bunch techniques and laser recirculation. In this way a final value of 104photon per eV per second can be achieved. © 2012 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)109 - 116
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume693
DOIs
Publication statusPublished - 21 Nov 2012
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Petrillo, V., Bacci, A., Ben Alì Zinati, R., Chaikovska, I., Curatolo, C., Ferrario, M., Maroli, C., Ronsivalle, C., Rossi, A. R., Serafini, L., Tomassini, P., Vaccarezza, C., & Variola, A. (2012). Photon flux and spectrum of γ-rays Compton sources. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 693, 109 - 116. https://doi.org/10.1016/j.nima.2012.07.015