TY - GEN
T1 - Production of a short-bunch polarized positron beam and design of a positron polarimeter
AU - Fukuda, M.
AU - Ohashi, A.
AU - Hirose, T.
AU - Washio, M.
AU - Yamazaki, I.
AU - Kurihara, Y.
AU - Nomura, M.
AU - Okugi, T.
AU - Omori, T.
AU - Urakawa, J.
N1 - Funding Information:
We would like to acknowledge all members of the ATF group for operation of the ATF-damping ring and Dr. S. Yamada and Dr. S. Iwata for their continuous encouragement. We also thank Ms. A. Higurashi for their partial help in designing the e-beam optics. This research was partially supported by a Research Fund of KEK for Cooperative Developments, a Grant-in-Aid for Scientific Research (B)11554010, (A)11694092, (C)10640294, a research program of US-Japan Cooperation in the Field of High-Energy Physics and Advanced Compact Accelerator Project of National Institute of Radiological Science.
PY - 2004
Y1 - 2004
N2 - We have been pursuing a basic study of a polarized positron source for a next generation linear collider, JLC based on two fundamental processes, i.e. inverse Compton scattering of circularly polarized laser-photons and pair-creation of a polarized y-ray. Polarized y-rays were produced at collisions of circularly polarized laser-beams with a wave length of 532nm provided from a Nd: YAG with counterpropagating electron beams of 1.28 GeV. Since a time-duration of produced γ -rays is extremely short, i.e. 30 ps, we have developed a transmission method in which a total flux of γ-rays passing through magnetized iron is measured resulting in asymmetry determination. We will report technical details of a positron polarimetry, which will be soon employed to substantiate our proposed view concerning a JLC polarized positron source.
AB - We have been pursuing a basic study of a polarized positron source for a next generation linear collider, JLC based on two fundamental processes, i.e. inverse Compton scattering of circularly polarized laser-photons and pair-creation of a polarized y-ray. Polarized y-rays were produced at collisions of circularly polarized laser-beams with a wave length of 532nm provided from a Nd: YAG with counterpropagating electron beams of 1.28 GeV. Since a time-duration of produced γ -rays is extremely short, i.e. 30 ps, we have developed a transmission method in which a total flux of γ-rays passing through magnetized iron is measured resulting in asymmetry determination. We will report technical details of a positron polarimetry, which will be soon employed to substantiate our proposed view concerning a JLC polarized positron source.
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U2 - 10.1142/9789812702333_0010
DO - 10.1142/9789812702333_0010
M3 - Conference contribution
AN - SCOPUS:85040057756
T3 - Joint 28th ICFA Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics
SP - 95
EP - 102
BT - Joint 28th ICFA Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics
A2 - Chen, Pisin
A2 - Reil, Kevin
PB - World Scientific Publishing Co. Pte Ltd
T2 - Joint 28th International Committee for Future Accelerators Advanced Beam Dynamics and Advanced and Novel Accelerators Workshop on Quantum Aspects of Beam Physics
Y2 - 7 January 2003 through 11 January 2003
ER -