title: The negative hydrogen Penning ion gauge ion source for KIRAMS-13 cyclotron.
abstract: The cold-cathode-type Penning ion gauge (PIG) ion source for the internal ion source of KIRAMS-13 cyclotron has been used for generation of negative hydrogen ions. The dc H-beam current of 650 microA from the PIG ion source with the Dee voltage of 40 kV and arc current of 1.0 A is extrapolated from the measured dc extraction beam currents at the low extraction dc voltages. The output optimization of PIG ion source in the cyclotron has been carried out by using various chimneys with different sizes of the expansion gap between the plasma boundary and the chimney wall. This paper presents the results of the dc H-extraction measurement and the expansion gap experiment.
authors.affiliation: Laboratory of Particle Accelerator Development, Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, Republic of Korea. ectroan@kcch.re.kr
authors.forename: D H
authors.initials: DH
authors.lastname: An
authors.forename: I S
authors.initials: IS
authors.lastname: Jung
authors.forename: J
authors.initials: J
authors.lastname: Kang
authors.forename: H S
authors.initials: HS
authors.lastname: Chang
authors.forename: B H
authors.initials: BH
authors.lastname: Hong
authors.forename: S
authors.initials: S
authors.lastname: Hong
authors.forename: M Y
authors.initials: MY
authors.lastname: Lee
authors.forename: Y
authors.initials: Y
authors.lastname: Kim
authors.forename: T K
authors.initials: TK
authors.lastname: Yang
authors.forename: J S
authors.initials: JS
authors.lastname: Chai
mesh_terms: D000838:Anions; D017357:Cyclotrons / Q000295:instrumentation*; D055590:Electromagnetic Phenomena / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006859:Hydrogen / Q000737:chemistry*; D007477:Ions
chemical_list: D000838:Anions; D007477:Ions; D006859:Hydrogen