A sharp gas-bremsstrahlung beam capable of testing electromagnetic calorimeters
| Autor: | Yasuhisa Tajima, T. Hashimoto, T. Matsumura, Hiroshi Yoshida, Akira Miura, R. Chiba, Yoshihiro Asano, Hajime Shimizu |
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| Rok vydání: | 2007 |
| Předmět: |
Physics
Nuclear and High Energy Physics Beam diameter Physics::Instrumentation and Detectors business.industry Bremsstrahlung Synchrotron radiation SPring-8 Calorimeter Insertion device Optics Beamline Physics::Accelerator Physics High Energy Physics::Experiment business Instrumentation Beam (structure) |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 582:489-496 |
| ISSN: | 0168-9002 |
| Popis: | A sharp gas-bremsstrahlung beam with an energy up to 8 GeV is available at insertion device (ID) beamlines at SPring-8. As a practical use of the beam, a test experiment for a 3 × 3 PWO calorimeter has been performed at an ID beamline, BL11XU, to measure the position of the incident gas-bremsstrahlung beam impinging on the calorimeter. The obtained position resolution is ( ( 2.76 ± 0.02 ) / E ) 2 + ( 0.30 ± 0.04 ) 2 mm , E in GeV, at the center of the calorimeter, which is consistent with the result previously obtained with a low-energy electron beam. Despite limited beam-energy information, the pencil-like photon beam generated on ID beamlines works well for a measurement of the position resolution of electromagnetic calorimeters. |
| Databáze: | OpenAIRE |
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