Experiment studies on the polarized gamma-rays generation at KEK-ATF
Creators
- 1. Chinese Academy of Sciences, Beijing (China). Graduate Univ.
- 2. Chinese Academy of Sciences, Beijing (China). Inst. of High Energy Physics
Description
Polarized positrons can be created through electron-positron pair creation from circularly polarized gamma-rays. Laser-Compton scattering is an efficient method to generate circularly polarized gamma-rays. A high finesse 2-mirror optical stacking cavity had been installed on the straight section of the electron storage ring at KEK-ATF. A 1064 nm circularly polarized pulsed laser beam was stacked in the cavity. Polarized gamma-rays with a maximum energy of 28.3 MeV were produced via inverse Compton scattering of the enhanced laser pulse off an electron beam of 1.28 GeV. The number of generated gamma photons per collision was estimated by a photon detector. It was found that the experimental result was in agreement with the simulated value. (authors)
Additional details
Publishing Information
- Journal Title
- Chinese Physics. C, High Energy Physics and Nuclear Physics
- Journal Volume
- 33
- Journal Issue
- 8
- Journal Page Range
- p. 691-695
- ISSN
- 1674-1137
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 41125305
- Subject category
- S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- BEAM STACKING; COMPTON EFFECT; ELECTRON BEAMS; ELECTRON-POSITRON INTERACTIONS; GAMMA RADIATION; KEK SYNCHROTRON; LASER CAVITIES; LASER RADIATION; MIRRORS; PAIR PRODUCTION; PARTICLE PRODUCTION; POLARIZED BEAMS; POSITRON BEAMS; STORAGE RINGS
- Descriptors DEC
- ACCELERATORS; BASIC INTERACTIONS; BEAMS; CYCLIC ACCELERATORS; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; INTERACTIONS; IONIZING RADIATIONS; LEPTON BEAMS; LEPTON-LEPTON INTERACTIONS; PARTICLE BEAMS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; RADIATIONS; SCATTERING; SYNCHROTRONS
Optional Information
- Notes
- 8 figs., 5 refs.