Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Nuclear Power02:36

Nuclear Power

7.8K
Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
7.8K
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current01:14

Diamagnetic Shielding of Nuclei: Local Diamagnetic Current

880
An applied magnetic field causes the electrons present in the molecule to circulate, setting up a local diamagnetic current within the molecule. The local diamagnetic current arising from circulating sigma-bonding electrons induces a magnetic field, Blocal that opposes the applied magnetic field, B0. The effective magnetic field experienced by these nuclei is given by the difference between the applied and local magnetic fields in a phenomenon called local diamagnetic shielding. Essentially,...
880
Transmission Line Design Considerations01:23

Transmission Line Design Considerations

140
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
140

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A multi-institutional survey on radiosurgery for multiple brain metastases in Latin America.

Physical and engineering sciences in medicine·2025
Same author

Experimental small fields output factors determination for an MR-linac according to the measuring position and orientation of the detector.

Biomedical physics & engineering express·2024
Same author

Commissioning of MRI-guided gynaecological brachytherapy using an MR-linac.

Biomedical physics & engineering express·2024
Same author

Assessment of PTV margin adequacy for single isocenter multiple brain metastases using genetic algorithms.

Biomedical physics & engineering express·2023

相关实验视频

Updated: Jul 12, 2025

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
07:31

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator

Published on: May 9, 2014

11.9K

对于MR-linac掩体屏蔽设计的考虑因素

María Del Sol Quintero Castelán1, Christian Estrada Hernández1, Pablo Abel Chee Chávez2

  • 1Radiofísica Especializada, S de RL de CV, Monterrey, Nuevo León, Mexico.

Biomedical physics & engineering express
|October 19, 2023
PubMed
概括

墨西哥首个MR-linac的屏蔽设计采用NCRP 151指南,以满足国家放射治疗需求. 设计确保符合辐射安全限制,允许未来增加每名患者的工作负载或剂量.

关键词:
MRlinac 的一个地方.团结的团结 团结的团结掩体掩体是一个掩体.辐射保护 辐射保护 辐射保护屏蔽 屏蔽 屏蔽 屏蔽 屏蔽

更多相关视频

Use of a Linear Accelerator for Conducting In Vitro Radiobiology Experiments
06:08

Use of a Linear Accelerator for Conducting In Vitro Radiobiology Experiments

Published on: May 26, 2019

7.5K
Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

10.5K

相关实验视频

Last Updated: Jul 12, 2025

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
07:31

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator

Published on: May 9, 2014

11.9K
Use of a Linear Accelerator for Conducting In Vitro Radiobiology Experiments
06:08

Use of a Linear Accelerator for Conducting In Vitro Radiobiology Experiments

Published on: May 26, 2019

7.5K
Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

10.5K

科学领域:

  • 医学物理 医学物理
  • 辐射瘤学 辐射瘤学
  • 辐射工程 辐射工程

背景情况:

  • 引入磁共振线性加速器 (MR-linacs) 提出了独特的屏蔽设计挑战.
  • 确保辐射安全对于临床环境中的公共健康和职业健康至关重要.

研究的目的:

  • 详细介绍墨西哥第一个MR-linac装置的屏蔽设计考虑因素.
  • 将屏蔽设计与国家临床要求和辐射保护标准保持一致.

主要方法:

  • 遵守国家辐射防护和测量委员会 (NCRP) 151条关于初级和二级屏障设计的建议.
  • 基于预期的临床需求进行的计算,包括强度调节辐射疗法 (IMRT) 和3D符合辐射疗法 (3D-CRT) 在80%-20%的比例下.
  • 纳入MR-linac掩体的特定门设计考虑因素.

主要成果:

  • 辐射水平调查证实完全符合国家监管机构设定的限值.
  • 测量的暴露水平符合国际辐射保护委员会 (ICRP) 关于公共和职业暴露的建议.
  • 屏蔽设计有效地阻止了计划中的MR-linac处理所产生的辐射.

结论:

  • 屏蔽设计坚固,符合当前的安全标准.
  • 掩体设计可以适应未来可能增加的每名患者工作量或剂量.
  • 这种灵活性允许集成先进的技术,如低分离,而不需要结构修改.