A fast profile monitor with scintillating fiber hodoscopes for high-intensity photon beams
A fast beam-profile monitor has been developed for high-energy photon beamlines at the Research Center for Electron Photon Science, Tohoku University. The position of the photon converted into an electron–positron pair in a 0.5mm-thick aluminum plate is measured with two hodoscopes made of scintilla...
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| Veröffentlicht in: | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2016-03, Vol.811, p.124-132 |
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| creator | Ishikawa, T. Fujimura, H. Hamano, H. Hashimoto, R. Honda, Y. Ishida, T. Kaida, S. Kanda, H. Kido, S. Matsumura, Y. Miyabe, M. Mizutani, K. Nagasawa, I. Nakamura, A. Nanbu, K. Nawa, K. Ogushi, S. Shibasaki, Y. Shimizu, H. Sugai, H. Suzuki, K. Takahashi, K. Takahashi, S. Taniguchi, Y. Tokiyasu, A.O. Tsuchikawa, Y. Yamazaki, H. |
| description | A fast beam-profile monitor has been developed for high-energy photon beamlines at the Research Center for Electron Photon Science, Tohoku University. The position of the photon converted into an electron–positron pair in a 0.5mm-thick aluminum plate is measured with two hodoscopes made of scintillating fibers with cross-sections of 3×3mm2. Events in which charged particles are produced upstream are rejected with a charge veto plastic scintillator placed in front of the plate, and pair-production events are identified with a trigger plastic scintillator placed behind the plate. The position is determined by a developed logic module with a field-programmable gate array. The dead time for processing an event is 35ns, and a high data acquisition efficiency (~100%) can be achieved with this monitor for high-intensity photon beams corresponding to 20MHz tagging signals. |
| doi_str_mv | 10.1016/j.nima.2015.12.027 |
| format | Article |
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The position of the photon converted into an electron–positron pair in a 0.5mm-thick aluminum plate is measured with two hodoscopes made of scintillating fibers with cross-sections of 3×3mm2. Events in which charged particles are produced upstream are rejected with a charge veto plastic scintillator placed in front of the plate, and pair-production events are identified with a trigger plastic scintillator placed behind the plate. The position is determined by a developed logic module with a field-programmable gate array. 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The dead time for processing an event is 35ns, and a high data acquisition efficiency (~100%) can be achieved with this monitor for high-intensity photon beams corresponding to 20MHz tagging signals.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.nima.2015.12.027</doi><tpages>9</tpages></addata></record> |
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| ispartof | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2016-03, Vol.811, p.124-132 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Beam profile monitor Charged particles Detectors Hodoscopes Logic Meson photo-production Monitors Photon beams Photons Scintillating fibers Tagged photon beam |
| title | A fast profile monitor with scintillating fiber hodoscopes for high-intensity photon beams |
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