title: Field ionization of strongly magnetized rydberg positronium: A new physical mechanism for positron accumulation
abstract: Magnetized Rydberg positronium forms when an energetic positron ( e(+)) slows within a tungsten crystal and picks up an electron ( e(-)) as it emerges in a strong magnetic field. The signature is equal numbers of e(+) and e(-) when a weak electric field is applied, either of which can be accumulated and counted. The new e(+) accumulation technique is simple, robust, and much more efficient than any other demonstrated to be compatible with a cryogenic vacuum. Possible applications include the study of cold single component plasmas of e(+) and the formation of cold antihydrogen.
authors.affiliation: Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
authors.initials: J
authors.lastname: Estrada
authors.initials: T
authors.lastname: Roach
authors.initials: JN
authors.lastname: Tan
authors.initials: P
authors.lastname: Yesley
authors.initials: G
authors.lastname: Gabrielse