Abstract
We have demonstrated for the first time the production of highly polarized short-pulse positrons with a finite energy spread in accordance with a new scheme that consists of two-quantum processes, such as inverse Compton scattering and electron-positron pair creation. Using a circularly polarized laser beam of 532 nm scattered off a high-quality, 1.28 GeV electron beam, we have obtained polarized positrons with an intensity of 2×104 e+/bunch. The magnitude of positron polarization has been determined to be 73±15(stat)±19(syst)% by means of a newly designed positron polarimeter.
| Original language | English |
|---|---|
| Article number | 114801 |
| Journal | Physical Review Letters |
| Volume | 96 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2006 Mar 30 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Omori, T., Fukuda, M., Hirose, T., Kurihara, Y., Kuroda, R., Nomura, M., Ohashi, A., Okugi, T., Sakaue, K., Saito, T., Urakawa, J., Washio, M., & Yamazaki, I. (2006). Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation. Physical Review Letters, 96(11), [114801]. https://doi.org/10.1103/PhysRevLett.96.114801