- 著者
- Nobuyuki Kanematsu Takashi Akagi Yasuyuki Futami Akio Higashi Tatsuaki Kanai Naruhiro Matsufuji Hiromi Tomura Haruo Yamashita
- 出版者
- Japan Society of Medical Physics
- 雑誌
- 放射線医学物理 (ISSN:09188010)
- 巻号頁・発行日
- vol.18, no.1, pp.88-103, 1998 (Released:2012-09-24)
- 参考文献数
- 21
- 被引用文献数
- 1
This technical report describes a 3D dose calculation code which we have developed for proton therapy treatment planning. In order to achieve fast and accurate calculation in inhomogeneous matter like a human body, the code employs the pencil beam algorithm with the infinite-slab-layer approximation. The code handles the given configuration of proton beam, beam modifying devices, and voxel-based structure of a patient and calculates the 3D dose distribution in the patient. The code showed good performance for treatment planning in terms of speed and accuracy in comparison with detailed Monte Carlo calculations.
- 著者
- Hussein Almasri
- 出版者
- Japan Society of Medical Physics
- 雑誌
- 医学物理 (ISSN:13455354)
- 巻号頁・発行日
- vol.38, no.2, pp.93-95, 2018-10-31 (Released:2018-11-01)
- 参考文献数
- 7
- 著者
- 八木 浩史 安友 基勝 高島 宏輔
- 出版者
- Japan Society of Medical Physics
- 雑誌
- 放射線医学物理 (ISSN:09188010)
- 巻号頁・発行日
- vol.19, no.4, pp.218-230, 1999-12-01
It is very important which the special xray equipment and photosensitive materials merely are prepared but also their maximum ability are shown for mammography which is taken photography of breast tissue having a few absorbed difference and requires showing the detail of change to a morbid state.<BR>Especia lly, the physical properties of film are influenced on developing conditions, namely, developing temperature, developing time and developer. In this study, the physical properties were investigated by using some developing conditions.<BR>In the results, it has been confirmed, which the temperature dependencies on physical properties of films for mammography are different with developing time and developer.<BR>Furthermore, it has been confirmed, which it is very important wh en the maximum ability of the films for mammography is required, the suitable developing temperature must be investigated by using the automatic processor of each institution, that is, by using the developing time and developer of each institution.