Investigation of high duty factor ISR RFQ-1000

Lu, Yuanrong; Chen, C.E.; Fang, Jing; Gao, Shuli; Guo, Jiangfeng; Guo, Zhiyu; Li, D.S.; Li, W.G.; Pan, O.; Ren, Xiangxia; Wu, Youfu; Yan, Xueqing; Yu, Jinxiang; Yu, Min; Ratzinger, U.; Deitinghoff, H.; Klein, H.; Schempp, A.

doi:10.1016/j.nima.2003.07.025

Cited by 11 publications

(4 citation statements)

References 1 publication

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“…The inter-electrode voltage was started to be measured when the high vacuum in the RFQ cavity reached 10 -5 Pa with both cooling water and high rf power. To obtain the inter-electrode voltage, a high purity Ge detector cooled by liquid nitrogen was used to measure the energy spectrum of X-ray [8] . An ORTEC computer multi-channel system was employed to deal with the signal, which consists of a preamplifier, a master amplifier, a PCI computer multi-channel card and a notebook PC.…”

Section: Experimental Studies On the Ladder Ih-rfqmentioning

confidence: 99%

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Radio Frequency Quadrupole Accelerator: A High Energy and High Current Implanter

Nie¹,

Lu²,

Yan³

et al. 2012

Ion Implantation

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Section: Experimental Studies On the Ladder Ih-rfqmentioning

confidence: 99%

“…For instance, the 26 MHz ISR-1000 RFQ at Peking University can accelerate 16 O + beam from 22 keV to 1 MeV within 2.6 m, and the cavity diameter is 0.75 m [8] .…”

mentioning

confidence: 99%

Radio Frequency Quadrupole Accelerator: A High Energy and High Current Implanter

Nie¹,

Lu²,

Yan³

et al. 2012

Ion Implantation

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“…To obtain high transmission, only wellbunched beams from the RFQ should be accelerated by the SFRFQ. Based on the experience gained while working on the integral split ring radio frequency quadrupole (ISR-RFQ) 1000 [18,19] and during the commissioning of the prototype SFRFQ cavity [20], advances in the engineering of key components of the resonant cavity have been made [21]. Because the RFQ and SFRFQ electrodes can both be excited by the split rings, they can be coupled and excited inside a single cavity.…”

Section: Introductionmentioning

confidence: 99%

Design of coupled cavity with energy modulated electron cyclotron resonance ion source for materials irradiation research

Wang

Chen

Kang

et al. 2012

Phys. Rev. ST Accel. Beams

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The surface topography of samples after irradiation with heavy ions, protons, and helium ions based on accelerators is an important issue in the study of materials irradiation. We have coupled the separated function radio frequency quadrupole (SFRFQ) electrodes and the traditional RFQ electrodes into a single cavity that can provide a 0.8 MeV helium beam for our materials irradiation project. The higher accelerating efficiency has been verified by the successful commissioning of the prototype SFRFQ cavity. An energy modulated electron cyclotron resonance (ECR) ion source can achieve a well-bunched beam by loading a sine wave voltage onto the extracted electrodes. Bunching is achieved without the need for an external bunch cavity, which can substantially reduce the cost of the system and the length of the beam line. The coupled RFQ-SFRFQ with an energy modulated ECR ion source will lead to a more compact accelerator system. The conceptual design of this novel structure is presented in this paper.

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“…

The Peking University Integral Split Ring Radio Frequency Quadrupole(ISR RFQ) accelerator was constructed in 1999 with a high duty factor 16.7% and repetition frequency166Hz, and it was able to accelerate N + , O + ,O -, C + and He + from 1.6kev/u to 65keV/u [1]. It was later upgraded as an injector of the Separated Function RFQ (SFRFQ) [2,3].

…”

mentioning

confidence: 99%