정류방식에 따른 장치의 정확도와 출력 파형의 비교
Comparison of Accuracy and Output Waveform of Devices According to Rectification Method
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참고문헌
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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 prescribed 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.
Abstract
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 prescribed 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.
참고문헌 (15)
- ICRP, "The 2007 Recommendations of the International Commission on Radiological Protection", ICRP publication 103, Ann ICRP, 37, pp.2~4 (2007)
- Carlton RR, "Principle of Radiographic Image, An Art and a science" (2006), Thomson Delmar Learning
- Kang SS, "Diagnostic X-ray equipment" (2011), Chung-ku Pub; co
- "Diagnostic Image equipment Management experiments" (2018), Chung-ku Pub. co
- Rule Revision about Safety Management of Diagnosis Radiation Occurrence System, "Ministry of Health and Welfare", ~, pp.85th Ordinance of the Ministry of Health and Welfare (2011)
- Kim JM, "X-ray equipment &Management experiments" (2000), Daihak Pub. co
- 강세식, "인버터식 X선장치의 성능평가 시 비접속형 측정기의 유용성", 방사선기술과학, 31(2), pp.123~128 (2008), 대한방사선과학회
- 강병삼, "수도권지역 일반촬영 장비의 정도관리 분석", 방사선기술과학, 35(2), pp.93~102 (2012), 대한방사선과학회[DOI]
- Thompson TT., "A practical approach to modern X-ray Equipment" (1978), Brown co
- 구본열, "이동형 방사선 차폐장치의 성능평가에 관한 연구", 방사선기술과학, 41(4), pp.289~295 (2018), 대한방사선과학회[DOI]
- 장동근, "일반인들의 항공여객기 이용 시 우주방사선 피폭선량 비교 분석", 방사선기술과학, 41(4), pp.339~344 (2018), 대한방사선과학회[DOI]
- 김성철, "Feasibility of Using the Clamp Meter in Measuring X-Ray Tube Current", International Journal of Contents, 9(1), pp.38~41 (2013), 한국콘텐츠학회[DOI]
- Seoung YH., "Evaluation of accuracy and Reproducibility of Clinical General X-rat System by Safety Management Standard of Diagnostic Radiation Generators", J. Health. Med. Sci.. Cheongju Univ, 6(2), pp.41~48 (2018)
- Kim JM, "innovation Radiation Image Information" (2017), Shin-Kwang Pub. co
- Kwon DM, "Analoge & Digital·PACS Medical Image Information" (2016), Daihak Pub. co