### positron

• n. [物] 正电子，阳电子
«
1 / 10
»
positron 正电子

positron (n.)
1933, coined from posi(tive) (elec)tron.
1. After an immeasurably short time interval, the electron - positron pair recombine.

2. The positron is an antielectron.

3. The electron - positron pair may survive without recombining.

4. The vacancy defects of samples were measured by slow positron annihilation.

5. Magnetized water samples were measured by the positron annihilation lifetime spectrometer.