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| TUPPH083 |
Positron Generation through Laser Compton Scattering Gamma-ray
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439 |
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- D. Li, K. Imasaki
ILT, Suita, Osaka
- S. Amano, K. Horikawa, K. Ishihara, S. Miyamoto, T. Mochizuki
NewSUBARU/SPring-8, Laboratory of Advanced Science and Technology for Industry (LASTI), Hyogo
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Positron sources are important for linear colliders and are valuable tools in research of materials science, atomic physics and solid state physics. The proposal of positron generation through high-energy photon beams was presented several years ago, however, experiments are rare. In this paper, we report an experiment for generating positron beams. The experiment is based on a high-energy gamma-ray produced through Compton scattering of laser light from a high energy electron beam in a storage ring. The gamma-ray is then arranged to impinge on a thin Pb target to generate positrons and electrons via pair creation reaction. This process is also studied with the help of MCNP5 Monte Carlo simulation, for comparison with the experimental results. The imaging plate is used to record generated particles. Processing those images we can get information of positrons, electrons and photons, such as flux and energy spectrum.
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