正电子发射 Positron emission
（重定向自Positive beta decay）
![](/Images/godic/202502/03/CNO_Cycle_zh_hant.svg0117.png")
![](/Images/godic/202502/03/NuclearReaction0117.png"){kind=spacer}
![Différents modes de désintégration radioactive : radioactivités α, β– et β+, capture électronique ε, émission de neutron n et émission de proton p.](/Images/godic/202502/03/Modes_de_désintégration_radioactive.svg0117.png")
正电子发射，又称β衰变，是一种粒子放射性衰变的方式，属于β衰变。在这种衰变反应中，一个质子转化成中子，同时释放出一个正电子和一个电中微子。
Positive beta decay
中文百科
英语百科
Positron emission 正电子发射
（重定向自Positive beta decay）
Positron emission or beta plus decay (β decay) is a particular type of radioactive decay and a subtype of beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe). Positron emission is mediated by the weak force. The positron is a type of beta particle (β), the other beta particle being the electron (β) emitted from the β decay of a nucleus.
- Polycillin N
- polycillins
- polycinyl chloride
- Polycirrinae
- Polycirrus
- polycirruss
- polycistron
- polycistronic
- Polycistronic message
- polycistronic messenger
- polycistronic messenger RNA
- Polycistronic mRNA
- poly cistronic mRNA
- polycistronic operon
- polycistronic transcript
- polycistronic transcription
- polycistrooonic transcript
- Polycitra Syrup
- polyclad
- Polycladida
- polycladin
- polycladose
- Polycladus
- polyclady
- Polycldal