著者

遠山 尚紀 岡本 裕之 黒岡 将彦 木藤 哲史 株木 重人 古徳 純一 福士 政広 大野 達也 唐澤 久美子

出版者

公益社団法人 日本医学物理学会

雑誌

医学物理 (ISSN:13455354)

巻号頁・発行日

vol.42, no.3, pp.123-142, 2022-09-30 (Released:2022-09-30)

参考文献数

2

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The questionnaire survey was conducted in 2020 to investigate the working conditions of qualified medical physicists in Japan. We developed a web-based system for administering the questionnaire and surveyed 1,228 qualified medical physicists. The number of received responses was 405. We summarized the results of the survey by job category. The obtained results showed that most of the people working as certified medical physicists met the following conditions: (1) position of healthcare occupation, (2) direct supervisor is a medical doctor or a medical physicist, (3) licensed or passed an examination for a Class I Radiation Protection Supervisor, (4) without the license of professional radiotherapy technologist, (5) master’s or doctor’s degree, (6) being assigned to the section that is different from the radiological technologist section. The average annual salary was approximately 600,000 yen higher for those employed as medical physicists than for those employed as radiotherapy technologists. The percentage of work performed by a certified medical physicist in radiation therapy greatly varies depending on whether the physicist is dedicated to treatment planning and equipment quality control. Alternatively, the proportion of the true duties of medical physicists in charge of radiation therapy, as considered by qualified medical physicists in radiation therapy, was the same regardless of whether they were working full-time or not. The results of this survey updated the working status of certified medical physicists in Japan. We will continue to conduct the survey periodically and update the information to contribute to the improvement of the working conditions of medical physicists and policy recommendations.

著者

岡本 裕之 太田 誠一 川守田 龍 坂本 昌隆 中村 哲志 西岡 史絵 株木 重人 正井 範尚 水野 統文 古谷 智久 山本 鋭二郎 飯島 康太郎 伊藤 芳紀 勝田 昭一 黒岡 将彦 川村 愼二 橘 英伸 遠山 尚紀 中村 勝 峯村 俊行 中山 優子

出版者

公益社団法人 日本医学物理学会

雑誌

医学物理 (ISSN:13455354)

巻号頁・発行日

vol.40, no.1, pp.28-34, 2020-03-31 (Released:2020-03-31)

参考文献数

2

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In 2016, the American Association of Physicists in Medicine (AAPM) has published a report of task group (TG) 100 with a completely new concept, entitled “application of risk analysis methods to radiation therapy quality management.” TG-100 proposed implementation of risk analysis in radiotherapy to prevent harmful radiotherapy accidents. In addition, it enables us to conduct efficient and effective quality management in not only advanced radiotherapy such as intensity-modulated radiotherapy and image-guided radiotherapy but also new technology in radiotherapy. It should be noted that treatment process in modern radiotherapy is absolutely more complex and it needs skillful staff and adequate resources. TG-100 methodology could identify weakness in radiotherapy procedure through assessment of failure modes that could occur in overall treatment processes. All staff in radiotherapy have to explore quality management in radiotherapy safety.

著者

パーカー ジョセフ ドン 身内 賢太朗 水本 哲矢 西村 広展 奥 隆之 澤野 達哉 篠原 武尚 鈴木 淳市 高田 淳史 谷森 達 上野 一樹 原田 正英 池野 正弘 田中 真伸 内田 智久 服部 香里 岩城 智 株木 重人 岸本 祐二 窪 秀利 黒澤 俊介 松岡 佳大

出版者

日本中性子科学会

雑誌

波紋 (ISSN:1349046X)

巻号頁・発行日

vol.23, no.3, pp.218-222, 2013

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<p>We have developed a prototype time-resolved neutron imaging detector employing a micro-pattern gaseous detector known as the micro-pixel chamber (μPIC) coupled with a field-programmable-gate-array-based data acquisition system. Our detector system combines 100μm-level spatial and sub-μs time resolutions with a low gamma sensitivity of less than 10^-12 and high data rates, making it well suited for applications in neutron radiography at high-intensity, pulsed neutron sources. In the present paper, we introduce the detector system and present several test measurements performed at NOBORU (BL10), J-PARC to demonstrate the capabilities of our prototype. We also discuss future improvements to the spatial resolution and rate performance.</p>