TY - JOUR
T1 - Polarized positron source for the linear collider, JLC
AU - Hirose, T.
AU - Dobashi, K.
AU - Kurihara, Y.
AU - Muto, T.
AU - Omori, T.
AU - Okugi, T.
AU - Sakai, I.
AU - Urakawa, J.
AU - Washio, M.
N1 - Funding Information:
Authors would like to thank all collaborators of the polarized positron project both in Japanese institutes and BNL for their important contribution in different stages of the polarized positron project. This research was partially supported by a Grant-in-Aid for Scientific Research, (C) 10640294, (A) 11694092, (B) 11554010, Research fund of Japan–US Cooperation in the Field of High-Energy Physics and those of Cooperative Developments by KEK and Universities.
PY - 2000/11/21
Y1 - 2000/11/21
N2 - A comprehensive description of a polarized positron project is presented in terms of physics motivations for utilizing a polarized positron in electron-positron collider experiments, a proof-of-principle experiment and a conceptual design of a polarized positron source for the future linear collider JLC. In order to verify a proposed method of creating highly polarized positron beams via successive two fundamental processes, i.e. Compton scattering and pair creation, we have been performing basic experiments both at KEK and BNL. First observation of positrons was made at KEK using an electron beam of 1.26 GeV and a laser of 2.33 eV. High-intensity picosecond X-rays were also generated at BNL using a specially designed Compton chamber. In order to realize polarized positron beams of the JLC which have considerably high intensity, i.e. 0.7×1010 e+/pulse and a complicated multi-bunch structure, we have achieved a possible scheme for the Compton scattering system and a positron capture section into an L-band linac.
AB - A comprehensive description of a polarized positron project is presented in terms of physics motivations for utilizing a polarized positron in electron-positron collider experiments, a proof-of-principle experiment and a conceptual design of a polarized positron source for the future linear collider JLC. In order to verify a proposed method of creating highly polarized positron beams via successive two fundamental processes, i.e. Compton scattering and pair creation, we have been performing basic experiments both at KEK and BNL. First observation of positrons was made at KEK using an electron beam of 1.26 GeV and a laser of 2.33 eV. High-intensity picosecond X-rays were also generated at BNL using a specially designed Compton chamber. In order to realize polarized positron beams of the JLC which have considerably high intensity, i.e. 0.7×1010 e+/pulse and a complicated multi-bunch structure, we have achieved a possible scheme for the Compton scattering system and a positron capture section into an L-band linac.
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U2 - 10.1016/S0168-9002(00)00686-0
DO - 10.1016/S0168-9002(00)00686-0
M3 - Article
AN - SCOPUS:0034320775
SN - 0168-9002
VL - 455
SP - 15
EP - 24
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
ER -