정류방식에 따른 장치의 정확도와 출력 파형의 비교

• 영문명: Comparison of Accuracy and Output Waveform of Devices According to Rectification Method
• 발행기관: 대한방사선과학회(구 대한방사선기술학회)
• 저자명: 이인자(Lee, In Ja)
• 간행물 정보: 『방사선기술과학』방사선기술과학 제41권 제6호, 603~610쪽, 전체 8쪽
• 주제분류: 의약학 > 방사선과학
• 파일형태: PDF
• 발행일자: 2018.12.30

영문 초록

This study examined the following: accuracy of the exposure conditions in the inverter device and three-phase device; output waveform over the exposure conditions; and average and standard deviation of the output waveform. After assessing whether the dose corresponding to the theoretical dose was presented, the following conclusions were obtained: 1. The accuracy of the tube voltage(kVp) and tube current(mA) exposure time(sec) was within the tolerable level pre-scribed in Korea’s Safety Management Standards. In the error, Inverter device was large the tube voltage and exposure time, the three-phase device was large the tube current. 2. In terms of the output waveform of the exposure conditions and the average and standard deviation of the output waveform, the higher tube voltage and larger tube current resulted in greater standard deviation in pulsation. Moreover, the standard deviation of pulsation was shown to be greater in the inverter device than the three-phase device; there was also greater standard deviation in the inverter device considering the exposure time. 3. Regarding the exposure conditions over the output dose, all linearity showed the coefficient of variation which had an allowable limit of error within 0.05. Although the output dose ratio for the inverter device was 1.00~1.10 times no difference that of the three-phase device, there was almost no difference in dose ratio between the tube currents.

목차

Ⅰ. 서 론

Ⅱ. 실험방법

Ⅲ. 결 과

Ⅳ. 고 찰

Ⅴ. 결 론

키워드

Inverter device Three phases device Output waveform Ripple factor Dose ratio 인버터장치 삼상장치 출력 파형 맥동률 선량비