V2EX neutron spectrum

Neutron Spectrum

Definition / 定义

neutron spectrum中子能谱(或中子谱),指在某一中子场中,中子按能量(或速度)分布的情况;常用来描述反应堆、加速器或核辐射环境里快中子、热中子等所占比例,用于反应堆物理、屏蔽设计与剂量评估等。

Pronunciation / 发音

/nutrn spktrm/; /nutrn spktrm/

Examples / 例句

The neutron spectrum changed after we added the moderator.
加入慢化剂后,中子能谱发生了变化。

Accurate modeling of the neutron spectrum is essential for predicting reaction rates and optimizing reactor fuel management.
对中子能谱进行精确建模对预测反应率、优化反应堆燃料管理至关重要。

Etymology / 词源

neutron 来自“neutral(中性的)”一词的构词关系,表示不带电的粒子spectrum 源自拉丁语 spectrum(“影像、显现之物”),在科学语境中引申为“分布/谱”。合起来 neutron spectrum 就是“子能量(或相关物理量)的分布谱”。

Related Words / 相关词

Literary Works / 文学作品举例

  • The Making of the Atomic Bomb(Richard Rhodes)中在核裂变与链式反应的技术叙述中会涉及与中子能量分布/谱相关的讨论。
  • Introduction to Nuclear Engineering(John R. Lamarsh & Anthony J. Baratta)作为经典教材,常直接使用并解释 neutron spectrum
  • Nuclear Reactor Analysis(James J. Duderstadt & Louis J. Hamilton)在反应堆中子学建模章节中频繁出现 neutron spectrum
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