title: High voltage holding in the negative ion sources with cesium deposition.
abstract: High voltage holding of the large surface-plasma negative ion source with cesium deposition was studied. It was found that heating of ion-optical system electrodes to temperature >100 °C facilitates the source conditioning by high voltage pulses in vacuum and by beam shots. The procedure of electrode conditioning and the data on high-voltage holding in the negative ion source with small cesium seed are described. The mechanism of high voltage holding improvement by depletion of cesium coverage is discussed.
authors.affiliation: Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
authors.forename: Yu
authors.initials: Y
authors.lastname: Belchenko
authors.affiliation: Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
authors.forename: G
authors.initials: G
authors.lastname: Abdrashitov
authors.affiliation: Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
authors.forename: A
authors.initials: A
authors.lastname: Ivanov
authors.affiliation: Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
authors.forename: A
authors.initials: A
authors.lastname: Sanin
authors.affiliation: Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia.
authors.forename: O
authors.initials: O
authors.lastname: Sotnikov