Design of polarized-positron generation system

K. Dobashi*, M. Fukuda, A. Higurashi, T. Hirose, T. Kumita, Y. Kurihara, T. Muto, T. Okugi, T. Omori, I. Sakai, J. Urakawa, M. Washio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We have proposed a new method of generating highly polarized positrons through Compton scattering of polarized laser lights off relativistic electron beams and successive pair creation. To realize high-luminosity laser-electron collisions, we constructed a specially designed chamber which equips off-axis parabolic mirrors with a through hole at the center. This mirror achieves strong focusing of laser lights as well as head-on collisions of laser lights with e- beams, so that the luminosity can be significantly increased. A polarimeter is designed for the measurement of positron polarization.

Original languageEnglish
Pages (from-to)32-35
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
Publication statusPublished - 2000 Nov 21

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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