The ATHENA apparatus that recently produced and detected the first cold antihydrogen atoms is described. Its main features, which are described herein, are: an external positron accumulator, making it possible to accumulate large numbers of positrons; a separate antiproton catching trap, optimizing the catching, cooling and handling of antiprotons; a unique high resolution antihydrogen annihilation detector, allowing an clear determination that antihydrogen has been produced; an open, modular design making variations in the experimental approach possible and a ‘‘nested’’ Penning trap situated in a cryogenic, 3T magnetic field environment used for the mixing of the antiprotons and positrons.

The ATHENA antihydrogen apparatus

BONOMI, Germano;LODI RIZZINI, Evandro;
2004-01-01

Abstract

The ATHENA apparatus that recently produced and detected the first cold antihydrogen atoms is described. Its main features, which are described herein, are: an external positron accumulator, making it possible to accumulate large numbers of positrons; a separate antiproton catching trap, optimizing the catching, cooling and handling of antiprotons; a unique high resolution antihydrogen annihilation detector, allowing an clear determination that antihydrogen has been produced; an open, modular design making variations in the experimental approach possible and a ‘‘nested’’ Penning trap situated in a cryogenic, 3T magnetic field environment used for the mixing of the antiprotons and positrons.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/148533
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