• Title/Summary/Keyword: radiological science

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Necessity of Mandatory Records on Radiological Examination (방사선검사에 관한 기록 의무화의 필요성)

  • Hong, Dong-Hee;Lim, Cheong-Hwan;Kim, Yon-Min;Kim, Eun-Hye;Yoo, Se-Jong;Yoon, Yong-Su;Lim, Woo-Taek;Jung, Young-Jin;Jung, Hong-Ryang;Joo, Young-Cheol;Choi, Ji-Won;Kang, Byung-Sam;Park, Myeong-Hwan;Back, Geum-Mun;Yang, Oh-Nam;Rhim, Jae-Dong;Jeong, Bong-Jae
    • Journal of radiological science and technology
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    • v.44 no.4
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    • pp.399-407
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    • 2021
  • This study discussed the validity and necessity of compulsory recording of radiographic examination performed by radiological technologist on patients in medical institutions related to radiation exposure. Also, this study provided reasonable evidence of radiographic examination related medical records can contribute to the improvement of public health. Based on overseas cases of implementing a radiographic examination record system, the essential items to be included in medical record are the exposure date, exposure time, exposure method, exposure conditions that is tube voltage, tube current. Name and license number of the radiological technologist who performed the examination should be include in medical record. It is expected that the medical record of the total amount of radiation exposure per year would be in giving the maximum benefit with the minimum exposure to the medical radiation examination of the patient. In addition, interventional radiography medical record should also include exposure time, type and dose of the contrast medium.

Variations in radiochemical purity according to temperature of storage and radical scavenger

  • Kim, Deok Ju;Kim, Min Soo;Kim, Jin Seok;Bae, Yeon Gyu;Sun, Chan Young;Choi, Seung Jae;Lee, Sang-Yoon
    • Journal of Radiopharmaceuticals and Molecular Probes
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    • v.2 no.2
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    • pp.132-136
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    • 2016
  • Radiolysis is the process of decreasing in Radio-Chemical Purity (RCP) of [$^{18}F$]FDG by direct effect and indirect effect of self Radio-activity. The objective of our study was to figure out the ideal conditions which minimize damages of quality of [$^{18}F$]FDG using radical scavenger and controlling temperature of storage.

Soil Radioactivity in Urban Parks of Incheon (인천지역 근린공원의 토양 방사능 농도)

  • Jun-Su, Jang;Sang-Bok, Lee;Ga-Eun, Baek;Hee-Cheol, Shin;Gyeong-Jae, Lee;Do-Hwa, Lee;Sungchul, Kim
    • Journal of radiological science and technology
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    • v.46 no.1
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    • pp.37-42
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    • 2023
  • Most of research on environmental radioactivity is conducted in areas near nuclear power plants, so basic data about the distribution of environmental radioactivity in soil in other areas are insufficient. Therefore, in this study, divide into four categories by the land development characteristics of Incheon and the purpose of development, and confirm the stability of the Incheon through soil sample collection and gamma-ray analysis based on 40K, 137Cs and 226Ra (214Pb, 214Bi). The spectrum obtained by measuring for 80,000 seconds by using the HPGe detector was analyzed by Genie 2000 program. Soil radioactivity concentrations in urban parks of Incheon area are generally within a safe range compared to the results of the Nuclear safety and security commission. However, as 137Cs was detected in one park, which will require continuous monitoring.

Evaluation of Radioactive Substance and Measurement of Harmfulness in Drinking Water (먹는 샘물의 방사성물질 측정 및 유해성 평가)

  • Jo, Jungwon;Lee, Sangbok;Nam, Johyeon;Noh, Eunjeong;Beak, Hyunwoo;Lee, Yejin;Lee, Joonse;Choi, Jiwon;Kim, Sungchul
    • Journal of radiological science and technology
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    • v.44 no.3
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    • pp.247-252
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    • 2021
  • As the number of single-person households increases, the consumption of bottled water is increasing. In addition, as the public's interest in radioactivity increases, interest in the field of living radioactivity is also increasing. Since drinking water is an essential element in our daily life, it must be safe from radioactivity. In this study, gamma radiation of drinking spring water was measured and internal exposure dose evaluation was performed to determine its harmfulness. K-40 and uranium-based radioactivity analysis was performed through a high-purity germanium detector, and as a result, drinking water was detected somewhat higher than that of mixing water. Since there is no regulation on the natural radioactivity concentration in Korea, it was compared with the U.S. Environmental Protection Agency Drinking Water Regulations and World Health Organization standard. As a result, there were some items that exceeded standards. Internal exposure was evaluated according to the effective dose formula of ICRP 119. As the result was derived that a maximum of 1.17 mSv per year could be received. This result means that the dose limit for the general public may be exceeded, and it was judged that it is necessary to set an appropriate standard value and present a recommendation value through continuous monitoring in the future.

Analysis of the Importance of Subjects to Improve the Educational Curriculum in the Radiological Science - Focused on Radiological Technologists - (방사선(학)과 교육과정 개선을 위한 교과목 중요도 분석 - 방사선사를 중심으로 -)

  • Kim, Jung-Hoon;Ko, Seong-Jin;Kang, Se-Sik;Kim, Dong-Hyun;Kim, Chang-Soo
    • Journal of radiological science and technology
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    • v.35 no.2
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    • pp.125-132
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    • 2012
  • In this study a group of experts and clinical radiological technologists were surveyed to evaluate the clinical importance of current subjects in the radiological sciences. For the data collection and analysis, an open-ended questionnaire was distributed to the group of experts, and a multiple choice questionnaire was distributed to radiological technologists. Subjects were classified into 9 groups for analysis of the importance of subjects, and in regard to the questionnaire design for measurement of variables, departments and type of hospital were set up as independent variables, and the 9 groups of subjects were set up as dependent variables. As a result, clinical radiological technologists perceived Diagnostic Imaging Technology and practical courses, including general radiography, CT and MRI, as the most clinically necessary subjects, and the group of experts placed most weight on basic courses for the major. The result of this study suggests that the curriculum should be revised in a way that combines theory and practice in order to foster radiological technologists capable of adapting to the rapidly changing healthcare environment.