Experimental study of the radiation emitted by 180 − GeV ∕ c electrons and positrons volume-reflected in a bent crystal

Experimental study of the radiation emitted by 180 − GeV ∕ c electrons and positrons volume-reflected in a bent crystal

The radiation emitted by 180-Ge/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to ∼100 GeV) under volume ref...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2009-01, Vol.79 (1), Article 012903
Hauptverfasser: Scandale, W., Vomiero, A., Baricordi, S., Dalpiaz, P., Fiorini, M., Guidi, V., Mazzolari, A., Milan, R., Della Mea, G., Ambrosi, G., Bertucci, B., Burger, W. J., Duranti, M., Zuccon, P., Cavoto, G., Iacoangeli, F., Luci, C., Pisano, S., Santacesaria, R., Valente, P., Vallazza, E., Afonin, A. G., Chesnokov, Yu. A., Maisheev, V. A., Yazynin, I. A., Kovalenko, A. D., Taratin, A. M., Denisov, A. S., Gavrikov, Yu. A., Ivanov, Yu. M., Lapina, L. P., Malyarenko, L. G., Skorobogatov, V. V., Suvarov, V. M., Vavilov, S. A., Bolognini, D., Hasan, S., Lietti, D., Mattera, A., Prest, M.
Format: Artikel
Sprache:eng
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Experimental Physics
Experimentell fysik
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Zusammenfassung:The radiation emitted by 180-Ge/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to ∼100 GeV) under volume reflection: photon and charged particle beams have been separated by a bending magnet and leptons were detected and tagged by microstrip silicon detectors and a Pb-scintillator sampling calorimeter. A comparison between the experimental and analytical data for the amorphous and volume-reflection cases is presented and the differences are discussed. © 2009 The American Physical Society.
ISSN:1050-2947
1094-1622
1094-1622
DOI:10.1103/PhysRevA.79.012903