V2EX gamma ray

Gamma Ray

释义 Definition

伽马射线 / 伽马射线(γ射线):一种能量极高、波长极短的电磁辐射,通常来自放射性衰变、核反应、粒子加速过程宇宙天体事件(如超新星、伽马暴)。它具有很强的穿透力,可能对生物组织造成电离伤害。(该词也常用于天文学与医学放疗语境。)

发音 Pronunciation (IPA)

/m re/

例句 Examples

Gamma rays can damage living cells if you are exposed without protection.
如果没有防护而暴露在伽马射线下,伽马射线可能会损伤活细胞。

Astronomers detected a burst of gamma rays from a distant galaxy, suggesting an extremely violent cosmic event.
天文学家探测到来自遥远星系的一次伽马射线暴,这表明发生了极其剧烈的宇宙事件。

词源 Etymology

gamma 来自希腊字母 Γ/γ(Gamma),早期用来按“第三”顺序命名不同类型的辐射:α(阿尔法)β(贝塔)γ(伽马)ray 意为“射线”。因此 gamma ray 字面即“伽马射线”,指这类高能辐射。

相关词 Related Words

文学作品 Literary Works

  • Kurt Vonnegut, Cat’s Cradle(《猫的摇篮》):作品中涉及核科学与辐射等主题语境,常与“射线/辐射”类词汇并列出现。
  • H. G. Wells, The World Set Free(《解放了的世界》):以早期核能想象为背景,文本中出现与放射性、射线相关的科学表述(不同版本/译本用词可能略有差异)。
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