V2EX dose constraint

Dose Constraint

释义 Definition

剂量约束值(dose constraint):在放射防护中,为了进行防护优化(如 ALARA)而在规划阶段设定的前瞻性上限/指导值,用于限制某一来源或某一途径对个人可能造成的剂量贡献。它通常低于法定“剂量限值(dose limit)”,用于设计、管理与决策时的控制目标。

发音 Pronunciation

/dos knstrent/

例句 Examples

The hospital set a dose constraint for staff working in the imaging room.
医院为在影像室工作的员工设定了剂量约束值。

When planning the new radiotherapy unit, engineers used dose constraints to optimize shielding so that exposures to the public would remain well below the dose limit.
在规划新的放疗机房时,工程师使用剂量约束值来优化屏蔽设计,使公众受照水平保持在远低于剂量限值的范围内。

词源 Etymology

dose 源自拉丁语 dosis,更早来自希腊语 dosis(“给予的量、剂量”);constraint 源自拉丁语 constringere(“捆紧、限制”)。合起来直译为“对剂量的限制/约束”,在现代语境中专指放射防护管理中用于优化的规划性控制值。

相关词 Related Words

文献作品 Literary Works

  • ICRP Publication 103: The 2007 Recommendations of the International Commission on Radiological Protection(讨论剂量约束值与防护优化框架)
  • ICRP Publication 60: 1990 Recommendations of the ICRP(提出并系统化相关防护概念)
  • IAEA Safety Standards Series: GSR Part 3 Radiation Protection and Safety of Radiation Sources(在监管与实践中使用剂量约束值/参考水平)
  • NCRP Reports(美国国家辐射防护与测量委员会相关报告中常用于防护管理与控制目标的表述)
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