Published May 30, 2008 | Version v1
Journal article Metadata-only

Observation of Polarized Positrons from an Undulator-Based Source

Creators

  • 1. Tel-Aviv University, Tel Aviv 69978 (Israel)
  • 2. Cornell University, Ithaca, New York 14853 (United States)
  • 3. SLAC, Menlo Park, California 94025 (United States)
  • 4. University of Tennessee, Knoxville, Tennessee 37996 (United States)
  • 5. Institut fuer Physik, Humboldt-Universitaet zu Berlin, D-12489 Berlin (Germany)

Description

An experiment (E166) at the Stanford Linear Accelerator Center has demonstrated a scheme in which a multi-GeV electron beam passed through a helical undulator to generate multi-MeV, circularly polarized photons which were then converted in a thin target to produce positrons (and electrons) with longitudinal polarization above 80% at 6 MeV. The results are in agreement with Geant4 simulations that include the dominant polarization-dependent interactions of electrons, positrons, and photons in matter

Additional details

Identifiers

DOI
10.1103/PhysRevLett.100.210801;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
100
Journal Issue
21
Journal Page Range
p. 210801-210801.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40013585
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S43: PARTICLE ACCELERATORS;
Descriptors DEI
ELECTRON BEAMS; ELECTRONS; GEV RANGE 01-10; INTERACTIONS; MEV RANGE 01-10; PHOTONS; POLARIZATION; POSITRONS; SIMULATION; STANFORD LINEAR ACCELERATOR CENTER; WIGGLER MAGNETS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BEAMS; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUIPMENT; FERMIONS; GEV RANGE; LEPTON BEAMS; LEPTONS; MAGNETS; MASSLESS PARTICLES; MATTER; MEV RANGE; NATIONAL ORGANIZATIONS; PARTICLE BEAMS; US DOE; US ERDA; US ORGANIZATIONS

Optional Information

Notes
(c) 2008 The American Physical Society