대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 제36회 하계학술대회 논문집 C
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- Pages.2146-2148
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- 2005
XFEL를 위한 기존의 펄스전원공급장치 개선 연구
Study of Pulse Generator used Inverter HV Power Supply
- 박성수 (포항공대 가속기연구소) ;
- 김상희 (포항공대 가속기연구소) ;
- 김성철 (포항공대 가속기연구소) ;
-
황정연
(포항공대 가속기연구소)
;
- 한영진 (포항공대 가속기연구소) ;
- 최진혁 (포항공대 가속기연구소) ;
- 김홍근 (경북대학교)
- Park, S.S. (POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.) ;
- Kim, S.H. (POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.) ;
- Kim, S.C. (POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.) ;
-
Hwang, J.Y.
(POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.)
;
- Han, Y.J. (POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.) ;
- Chio, J.H. (POSTECH Pohang Accelerator Laboratory, Dong-A Tech. Cop.) ;
- Kim, H.G. (Kyungbook National University)
- 발행 : 2005.07.18
초록
The 2.5GeV linac of the Pohang Light Source(PLS) is planed to be converted to a XFEL. The PAL XFEL requires a new 1.2-GeV linac that will be combined to the existing linac to increase a beam energy upto 3.7GeV. This stability is mainly determined by a low level RF drive system and klystron-modulators. The stability level of the modulator has to be improved 10 times better to meet the pulse stability of 0.02 %. The regulation methods such as traditional de-Qing and precision inverter charging technology are reviewed to find out suitable upgrade scheme of the modulators. In order to obtain electron beam of the consequently stability for XFEL linac, the pulse-to-pulse beam voltage regulation is less than +/-0.5%. To get the reliable stability of the modulator which is less than +/-0.2%, a charging section is improved in a modulator which has been operated with inverter power supply and de-Q'ing.
키워드