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A positron is a tiny piece of matter, as light as an electron, but with a plus charge instead of a minus one. You can think of it as the electron’s mirror twin. Though actually, it is not just a curiosity in a textbook. When a positron meets an electron, the two disappear and leave a flash of energy; hospitals use that fact in a kind of body scan. It is not a . A is heavy and sits in the middle of an atom. A positron is light, and it is the plus-charged partner of the electron. An American , Carl Anderson, coined the name in 1932 so that people would stop saying antielectron.
組成From positive + -tron (from electron). Coined by American physicist Carl Anderson in 1932 to replace the earlier term antielectron.
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
positronnoun/ˈpɒz.ɪ.tɹɒn/
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natural-sciencesphysical-sciencesphysicsThe antimatter equivalent of an electron, having the same mass but a positive charge.
- The notion of a positron weapon remains the stuff of science fiction.
- If these particles carry unit positive charge the curvatures and ionizations produced require the mass to be less than twenty times the electron mass. These particles will be called positrons.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。