A type of anode ray. When a small hole (canal) is drilled in the cathode of a vacuum discharge tube and a discharge is made, the particle beam that comes out through the small hole is called anode ray. It was discovered by E. Goldstein in 1886. Later, W. Wien studied how it bends in electric and magnetic fields and found that it is the accelerated positive ions inside the tube that are ejected. The Stark effect was discovered from the spectrum of canal rays. JJ Thomson investigated canal rays using a method similar to that for cathode rays and was the first to discover that neon (atomic weight 20.2) has two isotopes with mass numbers 20 and 22. Canal rays are also used as a source of positive ions in mass analyzers and particle accelerators. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
陽極線の1種。真空放電管の陰極に小孔 (カナル) をあけて放電させるとき,小孔を抜けて出てくる粒子線をいう。 1886年 E.ゴルトシュタインにより発見された。その後 W.ウィーンが電場,磁場での曲り方を研究して,管内の陽イオンが加速されて飛出したものであることがわかった。カナル線のスペクトルからシュタルク効果が発見された。 J.J.トムソンは,陰極線の場合と同様な方法でカナル線を調べて,ネオン (原子量 20.2) に質量数が 20と 22の2種類の同位体があることを初めて発見した。カナル線は陽イオン源として質量分析器や粒子加速器などにも用いられる。
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
<<: Canal del Viento - Canal del Viento
The frequency components of radio waves that occu...
...However, in recent times, attention has been f...
Please see the "Lupus erythematosus" pa...
One of the national honors. It is a badge of hono...
...small convex features created by glaciers incl...
Year of death: 18th October 1667 (3rd December 166...
...In other words, the idea is that airway stimul...
Bankruptcy procedures under the old Bankruptcy La...
A mound in the grounds of Mokuboji Temple in Sumid...
A city in the mid-west of Fukuoka Prefecture. It w...
Also known as Kuroezo. An evergreen tall tree of t...
CNRS is France's "National Center for Sc...
Dinosaurs are extinct terrestrial reptiles that f...
A monetary system in which a country's curren...
…The longa is divided into three blevis as a rule...