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单词 gamma ray
释义

gamma ray

英汉-汉英词典
n. 伽马射线,γ射线
词组 | 习惯用语
您要查找的是不是:
    gemma ray logging 然伽马测井
    Gammy ray bursts 伽玛射线暴
    gamma ray orbitography 伽马射线眼科照相法
    gamma ray radiation 射线照射
    neutron-capture gamma rays 中子俘获伽马辐射
gamma rays 伽马射线
gamma ray n. 伽马射线,γ射线
gamma ray spectroscopy 谱学
gamma ray detector 射线探测器;伽玛射线检测器
gamma ray burst 射线闪烁
scattered gamma rays 散射伽马射线
gamma ray source 伽马源,发射体
gamma ray sensor 伽马射线传感器
gamma ray holography 射线全息照相术
gamma ray beam 射束
英语例句库
  1. It provides theoretical data for design of anticoincidence shielded gamma ray spectrometer.
    可为设计反符合屏蔽γ谱仪提供理论数据。
  2. This indicats that gamma ray irradiation can increase the frequency of mutations and produces special types of flower in Godetia grandiflora breeding.
    花色变异主要是颜色变浅,甚至变为白色。花瓣变异可由原来的单瓣变为重瓣花。

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原声例句
VOA慢速英语_世界

" And this event is the brightest gamma ray burst, " O'Conner said.

“这是最亮的伽马射线暴,”奥康纳说。

宇宙奥秘

At the time, they didn't associate these gamma rays with lightning.

当时,他们没有把伽马射线和闪电联系起来。

VOA慢速英语_世界

The gamma ray burst released photons carrying a record amount of energy.

伽马射线爆发释放了携带创纪录能量的光子。

Crash Course 天文篇

Nuclear detonations produce a flash of gamma rays, the highest energy form of light.

核爆炸产生了伽马射线光,是光的最高能量形式。

Crash Course 天文篇

Because the material is more compact, the gamma ray flash is much shorter.

因为这种物质更紧凑,伽马射线的光束就要短得多。

科学大揭秘

All celestial bodies interact with electromagnetic radiation, including visible light, radio waves, gamma rays, and the rest.

所有天体都与电磁辐射相互作用,包括可见光、无线电波、伽马射线等。

Crash Course 天文篇

A quick look at solar flare data revealed no activity that day that could generate gamma rays, either.

快速浏览一下太阳耀斑的数据就会发现,那天的活动也不会产生伽马射线

科学60秒 听力 2013年9月合集

To analyze the structure and chemical composition of the beads, researchers bombarded them with neutrons and gamma rays.

为了分析这些珠子的结构和化学成分,研究人员用中子和伽马射线撞击它们。

美国历史频道纪录片《宇宙》

At the same time the gamma ray bursts are ejected the collapsing star explodes or goes supernova to the extreme.

伽玛射线爆发的同时,崩塌的恒星发生爆发或走向极端变成超新星。

跟马修学英语

But some also believe that a gamma ray burst was responsible for the Ordovician extinction around 455 million years ago.

但是也有一些科学家认为伽玛射线爆发可能是四十五亿年前奥陶纪大灭绝的罪魁祸首。

中文百科

伽马射线

伽马射线
α粒子相当于氦的原子核可被纸所阻挡,β粒子相当于电子可被铝箔所阻挡,γ射线则具有高穿透性。

伽玛射线(英文:Gamma ray),或γ射线是原子衰变裂解时放出的射线之一。此种电磁波波长在0.01奈米以下,穿透力很强,又携带高能量,容易造成生物体细胞内的脱氧核糖核酸(DNA)断裂进而引起细胞突变、造血功能缺失、癌症等疾病。它可以杀死细胞,因此也可以作医疗之用,杀死癌细胞。

1900年由法国科学家P.V.维拉德(Paul Ulrich Villard)发现,他将含镭的氯化钡通过阴极射线,从照片记录上看到辐射穿过0.2毫米的铅箔,拉塞福称这一贯穿力非常强的辐射为γ射线,是继α射线、β射线后发现的第三种原子核射线。1913年,γ射线被证实为是电磁波,由原子核内部自受激态至基态时所放出来,波长短于0.2 埃,和X射线特性相似但具有比X射线还要强的穿透能力。γ射线通过物质并与原子相互作用时会产生光电效应、康普顿效应和正负电子对效应。γ射线即使使用较厚材料阻挡一般也仍然有部分射线泄漏,所以通常只能用半吸收厚度来定量材料的阻隔效果。半吸收厚度是指入射射线强度减弱到一半时阻隔物体的厚度。半吸收厚度其数值d(1/2)=ln2/μ≈0.693/μ,μ表示阻隔物材料的射线吸收系数。材料的射线吸收系数与射线频率、能量以及材料种类有关,一般原子序数高和密度高的元素构成的材料其γ射线吸收系数也较高。普通放射源如Cs-137放射源产生的γ射线在铝、铁、铜、铅中的半吸收厚度分别约为3.2cm、2.6cm、1.4cm和0.6cm。

英语百科

Gamma ray 伽马射线

Illustration of an emission of a gamma ray (γ) from an atomic nucleusGamma rays are emitted during nuclear fission in nuclear explosions.
This animation tracks several gamma rays through space and time, from their emission in the jet of a distant blazar to their arrival in Fermi's Large Area Telescope (LAT).

Gamma ray (also called gamma radiation), denoted by the lower-case Greek letter gamma (γ or \gamma ), is extremely high-frequency electromagnetic radiation and therefore consists of high-energy photons. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation gamma rays. Rutherford had previously discovered two other types of radioactive decay, which he named alpha and beta rays.

近义、反义、联想词
近义词
n.
electromagnetic radiation, electromagnetic wave, nonparticulate radiation

英英词典
gamma ray n.
  1. electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength

  2. synonymous: gamma radiation
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更新时间:2025/6/21 13:43:14