• Title/Summary/Keyword: linac

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STUDY ON X-RAYS AND NEUTRONS LEAKED FROM A 45 MeV ELECTRON LINAC FACILITY

  • Sawamura, Sadashi;Kitaichi, Masatoshi;Nojiri, Ichiro;Yamada, Takuma;Kaneko, Junichi;Sawamura, Teruko
    • Journal of Radiation Protection and Research
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    • v.26 no.3
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    • pp.133-137
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    • 2001

  • Spatial and time distributions of x-rays and neutrons from Hokkaido University 45 MeV electron linac facility were measured and compared with the calculation. In the calculation, x-rays in a Pb-target were evaluated using the EGS-code. The x-rays and the neutrons from the target to the facility building boundary and skyshine process outside the facility building were simulated with the EGS and the MCNP respectively.

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Emittance Measurements of the Ion Sources for Induction Linac Driven Heavy Ion Fusion

  • Lee, Heon-Ju
    • Nuclear Engineering and Technology
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    • v.29 no.3
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    • pp.181-185
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    • 1997

  • The ion sources for induction linac driven heavy ion fusion were fabricated and their omittance characteristics were investigated. For to kinds of ion sources, i. e. a carbon vacuum arc ion source and a cusp field rf ion source, the emittance was measured with a double slit beam scanner. The required normalized omittance of an ion source for heavy ion fusion is 10$^{-7}$ - 5$\times$10$^{-7}$ $\pi$ m-rod, and the measured emittances of the ion beams from carbon vacuum arc ion source and cusp field rf ion source (Ne$^{+}$) were 2$\times$10$^{-6}$ $\pi$ m-rad and 4$\times$10$^{-7}$ $\pi$ m-rad, respectively.y.

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RF Measurements of the 2nd fabricated KAERI Dual Energy S-band Linac

  • Song, Gi-Baek;Park, Hyeong-Dal;Li, Yonggui;Cha, Seong-Su;Lee, Byeong-No;Kim, Yu-Jong;Lee, Byeong-Cheol
    • Proceedings of the Korean Vacuum Society Conference
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    • 2013.08a
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    • pp.111.1-111.1
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    • 2013

  • 전자가속기는 대표적인 방사선 발생장치 중의 하나로서, 오랜 세월 동안 연구개발 되어왔으며 의료 및 산업현장에서 활용되어 왔고 그 이용분야도 매우 폭넓다. 전자가속기는 최근 들어 기술이 확산되고 성능이 고도화되면서 그 활용과 함께 전자가속기 개발 및 연구가 많이 진행되고 있다. 이러한 연구개발에 있어 전자가속기의 가속관 제작은 가장 기본이 되는 중요한 부분 중에 하나이다. 가속관제작에 있어서 RF parameter들인 resonance frequency, bandwidth, 10 GHz 범위의 higher order modes와 quality factor는 가속관에서 중요한 특성이다. 본 연구에서는 9, 6 MeV 에너지를 가지는 2856 MHz의 고주파 전자가속기의 가속관 설계, 제작 및 튜닝에 있어서 network analyzer를 이용하여 RF parameter를 측정하여 가속관의 특성을 분석한다.

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Design of A 350MHz RFQ for the KOMAC 1 GeV Proton Linac

  • J. M. Han;Y. S. Cho;Park, B. H.;S. H. Jin;I. S. Ko;B. S. Kang;B. S. Han
    • Proceedings of the Korean Nuclear Society Conference
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    • 1998.05b
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    • pp.957-962
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    • 1998

  • As the first stage accelerator of the Korea Multipurpose Accelerator Complex (KOMAC) 1GeV proton linac, a 350MHZ, cw Radio-Frequency Quadrupole (RFQ) will be built to produce 20㎃ of 3Mev. High current RFQ with cw operation is a major program in the KOMAC project to understand beam dynamics, engineering design, construction, control and diagnostics techniques. The beam dynamics and the engineering design of RFQ are described and the present status of the KOMAC RFQ project is discussed.

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