전력전자학회논문지 (The Transactions of the Korean Institute of Power Electronics)

  • 제4권1호
  • /
  • Pages.66-72
  • /
  • 1999
  • /
  • 1229-2214(pISSN)
  • /
  • 2288-6281(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
권호 표지

고주파 공진형 인버터식 X-선 장치의 단시간 출력특성 비교 연구

A Study on the Output Characteristics Comparison of High Frequency Resonant Inverter Type X-ray Generators in Short Exposure Time

  • 정수복 (조선대 공대 전기공학과) ;
  • 이성길 (광주보건대학 방사선과) ;
  • 임홍우 (조선대학교 대학원 전기공학과) ;
  • 백형래 (조선대 전기공학과 교수, 대한전기학회 전력전자연구회 간사장)
  • 발행 : 1999.02.01

⟨ 이전 논문 다음 논문 ⟩

초록

본 논문은 고주파 공진형 PWM 인버터식 X-선 장치의 인버터에 단상과 3상 전파정류방식 및 PSU 전원을 연결시켰을 때 나타나는 단시간 출력특성에 대해 분석하였다. X-선의 선질은 X-선관에 입력되는 DC 전압 파형에 의존한다. DC 출력전압 파형은 DC 전압전원의 고조파 왜곡에 의해 영향을 받는다. 이러한 관전압 파형의 왜곡은 X-선 출력의 직선성, 재현성 및 출력선질을 저하시킨다. 따라서 본 논문에서는 DC 출력전압 파형과 세 가지 형식의 DC 입력전원 형식에 따른 출력선량을 비교하였고 이에 따른 실험결과를 검토하였다.

This paper deals with the output characteristics of resonant PWM inverter type X-ray generators connected to different DC power units i.e. a single phase full bridge rectifier, a three phase full bridge rectifier and a power storage unit(PSU). The quality of X-ray beam depends on the pulsating waveforms of DC voltage supplied to the X-ray tube. In a X-ray generator, the waveform of DC output voltage can be affected from affected from harmonic distortion of DC input power. When a tube voltage waveform is distorted, the property of X-ray beam such as reproducibility, linearity and dose can be reduced. Therefore, we compared DC output waveforms and dose with three type of DC power units and show the experimental results in this paper.

키워드

참고문헌

  1. Proceeding of ITELEC v.2 High Frequency Parallel Resonant Converter for X-Ray Generato Utilizing Parasitic Circuit Constant of High Voltage Transformer and Cables H.Hino;T.Hatakeyama;K.Kawase;M.Nakaoka
  2. Proceeding of PESC v.2 Resonant PWM Inverter Linked DC-DC Converter Using Parasitic Impedance of High-Voltage Transformer and Its Applications to X-ray Generator H.Hino;T.Hatakeyama;M.Nakaoka
  3. IEEE Trasactions on Industrial Electronics and Control Instrumentation v.21 no.3 Time-Sharing High Frequency Inverter Circuit G.N.Recankar;V.A.Patwardhan
  4. Industry Application v.26 no.3 A Performance Comparison of Full and Half Bridge Series Resonant Inverters in High Frequency High Power Applicatins P.K.Jain;S.B.Dewan
  5. Proceedings of PESC v.1 Study of A Resonant Converter Using Power Transistors in a 25kW X-ray Tube Power Supply Y.Cheran;H.Foch;J.Salesses
  6. IEEE Transactions. Power Electronics v.10 Fixde Frequency Phase Controlled Full-Bridge Resonant Converter with a Series Load Marian, K;Kazimierczuk;Manikatan
  7. 日本放射線技術學會雜誌 v.46 no.12 インバ-タ式 X-線古電壓裝置の原理 吉田熙宣
  8. An Introduction to the Physics of Diagnostic Radiology Edward E. Christensen
  9. IEEE Transcations on Industry Applications v.28 no.5 Fixed-Frequency PWM Series-Parallel Resonant Converter Aschoka K.S.Bhat