V2EX van allen belt

Van Allen Belt

Definition / 释义

范艾伦辐射带:地球周围由磁场“俘获”的高能带电粒子(主要是电子和质子)形成的区域,属于地球磁层的一部分。常说的有内辐射带外辐射带。(在更广义的语境下,也可泛指其他行星周围类似的辐射带。)

Pronunciation / 发音(IPA)

/vn ln blt/

Examples / 例句

The Van Allen belt protects Earth by trapping many charged particles.
范艾伦辐射带通过捕获许多带电粒子,在一定程度上帮助保护地球。

Satellites passing through the Van Allen belt must be designed to withstand intense radiation.
穿越范艾伦辐射带的卫星必须具备抵御强辐射的设计。

Etymology / 词源

“Van Allen belt”以美国空间物理学家James Van Allen(詹姆斯范艾伦)命名。1958年前后,在早期人造卫星(如 Explorer 1)的探测数据基础上,人们确认了地球周围存在高能粒子辐射区,因此这一结构以他的姓氏命名;“belt”在此表示环绕地球的“带状区域”。

Related Words / 相关词

Literary Works / 文学与著作中的出现

  • Cosmos(《宇宙》) Carl Sagan(卡尔萨根)
  • A Brief History of Time(《时间简史》) Stephen Hawking(史蒂芬霍金)
  • The Right Stuff(《太空先锋》) Tom Wolfe(汤姆沃尔夫)
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