Paper |
Title |
Page |
TUPPD024 |
HIGH-INTENSITY LOW-ENERGY POSITRON SOURCE AT JEFFERSON LABORATORY |
1461 |
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- S. Golge, B. Vlahovic
NCCU, Durham, USA
- B. Wojtsekhowski
JLAB, Newport News, Virginia, USA
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We present a novel concept of a low-energy e+ source with projected intensity on the order of 1010 slow e+/s. The key components of this concept are a continuous wave e- beam, a rotating positron-production target, a synchronized raster/anti-raster, a transport channel, and extraction of e+ into a field-free area through a magnetic plug for moderation in a cryogenic solid. Components were designed in the framework of GEANT4-based (G4beamline) Monte Carlo simulation and TOSCA magnetic field calculation codes. Experimental data to demonstrate the effectiveness of the magnetic plug is presented.
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TUPPD025 |
REVIEWOF LOW-ENERGY POSITRON BEAM FACILITIES |
1464 |
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- S. Golge, B. Vlahovic
NCCU, Durham, USA
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Positrons are produced by processes such as positive beta decay from radioactive isotopes, in nuclear reactor cores from both in-situ radioisotope radiation and pair production, and by accelerator driven beams hitting a converter target. The purpose of this paper is to review some of the prominent existing low-energy e+ facilities.
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