Positron source based on neutron capture

C. Hugenschmidt, G. Kögel, R. Repper,K. Schreckenbach, P. Sperr, W. Triftshäuser

Radiation Physics and Chemistry（2003）

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摘要

A positron beam based on absorption of high-energy prompt γ-rays from thermal neutron capture in 113Cd was installed at a neutron guide of the High Flux Reactor at the ILL in Grenoble. The positron source consists of platinum foils acting as γ–e+e−-converter and positron moderator. After acceleration to 3keV by electrical lenses the positrons were magnetically guided through the beamline.

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关键词

Positron beam,Positron source,Neutron capture,Pair production,Work function,Platinum

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