A Polarized Positron Source for CEBAF

A Polarized Positron Source for CEBAF

A compact polarized positron source for Jefferson Lab is discussed. This scheme relies upon a high polarization (85%), high current (1 mA), low-energy ( < 100 MeV) electron beam to generate polarized positrons in a conversion target via polarized bremsstrahlung and pair creation. GEANT4 is used t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Dumas, J, Grames, J, Voutier, E
Format: Tagungsbericht
Sprache:eng
Schlagworte:
ACCELERATORS
BEAM CURRENTS
BEAM PRODUCTION
BEAMS
BREMSSTRAHLUNG
CEBAF ACCELERATOR
COMPUTER CODES
COMPUTERIZED SIMULATION
CURRENTS
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ENERGY RANGE
G CODES
LEPTON BEAMS
LINEAR ACCELERATORS
MEV RANGE
PARTICLE ACCELERATORS
PARTICLE BEAMS
PARTICLE SOURCES
POLARIZATION
POLARIZED BEAMS
POSITRON SOURCES
RADIATION SOURCES
RADIATIONS
SIMULATION
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Beschreibung
Zusammenfassung:A compact polarized positron source for Jefferson Lab is discussed. This scheme relies upon a high polarization (85%), high current (1 mA), low-energy ( < 100 MeV) electron beam to generate polarized positrons in a conversion target via polarized bremsstrahlung and pair creation. GEANT4 is used to simulate source distributions suitable for a CEBAF-like injector with positron polarization -60% and nano-Ampere intensity. An experiment to test this scheme is outlined.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3232018