V2EX depth-dose curve

Depth-Dose Curve

释义 Definition

深度剂量曲线:放射治疗/放射物理中,用来表示辐射束在介质(如水或人体组织)中,剂量随深度变化的曲线。常用于描述入口区、剂量峰值(build-up)以及随后随深度衰减的规律。(在不同能量与束型下曲线形状会不同。)

发音 Pronunciation (IPA)

/dpθ dos kv/

例句 Examples

The physicist plotted a depth-dose curve for the new beam.
物理师为这束新射线绘制了深度剂量曲线。

In treatment planning, the depth-dose curve helps estimate how much radiation reaches the tumor while limiting dose to deeper healthy tissues.
在治疗计划中,深度剂量曲线有助于估算到达肿瘤的辐射量,同时限制对更深部健康组织的剂量。

词源 Etymology

这是一个现代科技复合术语depth(深度)+ dose(剂量)+ curve(曲线)。随放射物理与放射治疗发展而固定下来,用于量化“剂量深度关系”。其中 dose 源自希腊语 dosis(给予的量)。

相关词 Related Words

文献与著作 Notable Works

  • Khan’s The Physics of Radiation Therapy(放射治疗物理经典教材,讨论PDD/深度剂量等曲线)
  • Attix, Introduction to Radiological Physics and Radiation Dosimetry(剂量学基础与深度剂量相关概念)
  • IAEA TRS-398: Absorbed Dose Determination in External Beam Radiotherapy(外照射剂量测定标准,涉及深度剂量测量与应用)
  • ICRU Report 50 / 62(放疗处方、记录与报告体系中常需依赖深度剂量与等剂量信息)
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