title: Handling radiation generated during an ion source commissioning.
abstract: Radiation is an important issue, which should be carefully treated during the design and commissioning of an ion source. Measurements show that X-rays are generated around the ceramics column of an extraction system when the source is powered up to 30 kV. The X-ray dose increases greatly when a beam is extracted. Inserting the ceramic column into a metal vacuum box is a good way to block X-ray emission for those cases. Moreover, this makes the online test of an intense H(+) ion beam with energy up to 100 keV possible. However, for deuteron ion source commissioning, neutron and gamma-ray radiation become a serious topic. In this paper, we will describe the design of the extraction system and the radiation doses of neutrons and gamma-rays measured at different D(+) beam energy during our 2.45 GHz deuteron electron cyclotron resonance ion source commissioning for PKUNIFTY (PeKing University Neutron Imaging FaciliTY) project at Peking University.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: H T
authors.initials: HT
authors.lastname: Ren
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: J
authors.initials: J
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: S X
authors.initials: SX
authors.lastname: Peng
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: P N
authors.initials: PN
authors.lastname: Lu
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: Q F
authors.initials: QF
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: T
authors.initials: T
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: A L
authors.initials: AL
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: Z Y
authors.initials: ZY
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, Peking University, Beijing 100871, China.
authors.forename: J E
authors.initials: JE
authors.lastname: Chen