Design of a polarimeter for slow e+ beams
| Autor: | R. Hamatsu, M. Irako, N. Kawasaki, Tachishige Hirose, Masataka Hirose, T. Kumita, Masami Chiba, Jinfeng Yang |
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| Rok vydání: | 2000 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics::Instrumentation and Detectors business.industry Beam polarization Polarimeter Polarization (waves) Beam system Magnetic field Optics Positron Physics::Accelerator Physics Irradiation Atomic physics Nuclear Experiment business Instrumentation Beam (structure) |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 440:172-180 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/s0168-9002(99)00896-7 |
| Popis: | A polarimeter which utilizes ortho-positronium quenching in a magnetic field is used to measure polarization of slow positron beams. This polarimeter is employed for a polarization measurement at an e+ beam system where the beam is provided from the β+ decay of 27 Si produced via the 27 Al ( p , n ) 27 Si reaction caused by proton irradiation. The beam polarization is determined to be 38.4±4.0(statistical)±8.7(systematic)%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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