title: Letter: The formation of ion packages with ultrashort duration in laser ion source.
abstract: A new approach to the formation of ultrashort laser ion packages in the ion source of time-of-flight (TOF) mass spectrometer for elemental analysis is described. This is achieved by installing a wedge-shaped reflector with special correcting plates. The reflector provides time and space focusing of the ion packages. Such time focusing allows to reduce the ion package duration up to 1 ns. The proposed approach allows more than order of magnitude increase in the resolution of the laser TOF mass spectrometer with an axially symmetric electrostatic analyzer to 10,000-13,000. In this Letter the theoretical calculations justifying the proposed method are presented.
authors.affiliation: National Research Nuclear University MEPhI, Kashirskoye 31, Moscow, 115409, Russian Federation. aasysoyev1@mephi.ru.
authors.forename: Alexander Alexeevich
authors.initials: AA
authors.lastname: Sysoev
authors.affiliation: National Research Nuclear University MEPhI, Kashirskoye 31, Moscow, 115409, Russian Federation. sigmatron11@yandex.ru.
authors.forename: Alexander Vladimirovich
authors.initials: AV
authors.lastname: Karpov
authors.affiliation: National Research Nuclear University MEPhI, Kashirskoye 31, Moscow, 115409, Russian Federation. ox.pavlovsckaja2013@yandex.ru.
authors.forename: Oksana Igorevna
authors.initials: OI
authors.lastname: Gracheva