TY - JOUR
T1 - Efficient propagation of polarization from laser photons to positrons through compton scattering and electron-positron pair creation
AU - Omori, T.
AU - Fukuda, M.
AU - Hirose, T.
AU - Kurihara, Y.
AU - Kuroda, R.
AU - Nomura, M.
AU - Ohashi, A.
AU - Okugi, T.
AU - Sakaue, K.
AU - Saito, T.
AU - Urakawa, J.
AU - Washio, M.
AU - Yamazaki, I.
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.96.114801
DO - 10.1103/PhysRevLett.96.114801
M3 - Article
AN - SCOPUS:33645133749
VL - 96
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 11
M1 - 114801
ER -